Parallel venation hi-res stock photography and images

BAMBOO LEAF (BAMBUSA SP.) SHOWS PARALLEL VENATION, TYPICAL OF MONOCOT LEAVES / STUDIO Stock Photo

RMA1XP9G–BAMBOO LEAF (BAMBUSA SP.) SHOWS PARALLEL VENATION, TYPICAL OF MONOCOT LEAVES / STUDIO

Hosta fortunei aurea (Plantain lily), large bright green ovate leaves, with parallel venation, close-up Stock Photo

RMPFRMK2–Hosta fortunei aurea (Plantain lily), large bright green ovate leaves, with parallel venation, close-up

Green leaf with pinnately parallel venation pattern Stock Photo

RF2CBD2AD–Green leaf with pinnately parallel venation pattern

Beached up leaf with perfect parallel venation in decomposing stage, on white sand of tropical island, and is half decomposed losing its green pigment Stock Photo

RFW21BN8–Beached up leaf with perfect parallel venation in decomposing stage, on white sand of tropical island, and is half decomposed losing its green pigment

Three deltoid-shaped leaves green in color have a short brown stalk a margin and parallel venation vector color drawing or illustration Stock Vector

RFT6NT98–Three deltoid-shaped leaves green in color have a short brown stalk a margin and parallel venation vector color drawing or illustration

Various leaf forms, leaf venation, bud arrangements and woody stems. Watercolor by Isabel Sawkins. The illustration includes: lime, spruce fir, walnut, horse chestnut, section of the bud of the ash, spines of the plecticomo palm, prickles of the brier rose, parallel nerves of the iris, sappy leaf, forked nerves of the fern, reticulated nerves, the color discharged by the nerves, reticulated nerves, and compound leaf. Stock Photo

RMT9664P–Various leaf forms, leaf venation, bud arrangements and woody stems. Watercolor by Isabel Sawkins. The illustration includes: lime, spruce fir, walnut, horse chestnut, section of the bud of the ash, spines of the plecticomo palm, prickles of the brier rose, parallel nerves of the iris, sappy leaf, forked nerves of the fern, reticulated nerves, the color discharged by the nerves, reticulated nerves, and compound leaf.

A branch of the pistachio tree bearing red fruits and flat leaves with parallel venation set isolated on white background, vector, color drawing or il Stock Vector

RFT8J8DE–A branch of the pistachio tree bearing red fruits and flat leaves with parallel venation set isolated on white background, vector, color drawing or il

Closeup green leaf with rain drop texture background. Elephant ear leaf with parallel venation line and water drops. Botanical garden. Greenery Stock Photo

RF2C886EM–Closeup green leaf with rain drop texture background. Elephant ear leaf with parallel venation line and water drops. Botanical garden. Greenery

A green leaf with a short stalk a margin and parallel venation has a closed smile turning up to the cheek vector color drawing or illustration Stock Vector

RFT6NPWC–A green leaf with a short stalk a margin and parallel venation has a closed smile turning up to the cheek vector color drawing or illustration

$. A manual of botany. Botany. Fig. 119.. Fig. 116. Leaf showing the variety of parallel venation usually called straight-veined ; the margins are entire. Fig. 117. Straight-veined variety of parallel venation, as seen in the leaf of the Fan Palm {Ghamm- Ttyps). Fig. 118. Ourve-veined variety of parallel venation, as seen in the Banana. Fig. 119 Forked venation of a Feni leaf; the margins are crenate. which they are connected by small veins, as in the Dead-nettle {fig. 114) and Lilac. B. Radiated or Palmately vevned.^-'Shis name is applied to a leaf which possesses two or more strong veins that Stock Photo$

RMRE1KWT–. A manual of botany. Botany. Fig. 119.. Fig. 116. Leaf showing the variety of parallel venation usually called straight-veined ; the margins are entire. Fig. 117. Straight-veined variety of parallel venation, as seen in the leaf of the Fan Palm {Ghamm- Ttyps). Fig. 118. Ourve-veined variety of parallel venation, as seen in the Banana. Fig. 119 Forked venation of a Feni leaf; the margins are crenate. which they are connected by small veins, as in the Dead-nettle {fig. 114) and Lilac. B. Radiated or Palmately vevned.^-'Shis name is applied to a leaf which possesses two or more strong veins that

A philodendron plant with large flat palm-like leaves of parallel venation growing on a purple flower pot enhance the existing decor of any room in th Stock Vector

RFT8J83N–A philodendron plant with large flat palm-like leaves of parallel venation growing on a purple flower pot enhance the existing decor of any room in th

Closeup detail of green leaf texture background. Elephant ear leaf with parallel venation line. Botanical garden. Greenery wallpaper for spa or mental Stock Photo

RF2DBR21W–Closeup detail of green leaf texture background. Elephant ear leaf with parallel venation line. Botanical garden. Greenery wallpaper for spa or mental

A bunch of violet grapes with a single palm-shaped green leaf of parallel venation on a short green stalk set isolated white background viewed from th Stock Vector

RFT8FT1P–A bunch of violet grapes with a single palm-shaped green leaf of parallel venation on a short green stalk set isolated white background viewed from th

RF2DBTNDG–Closeup green leaf with rain drop texture background. Elephant ear leaf with parallel venation line and water drops. Botanical garden. Greenery wallpa

Parallel-veined Leaf, vintage engraving. Old engraved illustration of a Parallel-veined Leaf. Stock Photo

RFC79T4Y–Parallel-veined Leaf, vintage engraving. Old engraved illustration of a Parallel-veined Leaf.

A close up shot of a green leaf with visible vein system. Veins are composed of xylem and phloem cells. uttarakhand India. Stock Photo

RF2K60M76–A close up shot of a green leaf with visible vein system. Veins are composed of xylem and phloem cells. uttarakhand India.

macro of large green leaf parallel venation Stock Photo

RF2H7M4R9–macro of large green leaf parallel venation

Clipart of an ovate green leaf with a margin and alternate venation vector color drawing or illustration Stock Vector

RFT6NRJH–Clipart of an ovate green leaf with a margin and alternate venation vector color drawing or illustration

First published 1915 Broad leaved Arrow Head Sagittaria Latifolia Stock Photo

RMCN8A6T–First published 1915 Broad leaved Arrow Head Sagittaria Latifolia

Parallel-veined Leaf, vintage engraving. Old engraved illustration of a Parallel-veined Leaf. Stock Vector

RFEWA1C0–Parallel-veined Leaf, vintage engraving. Old engraved illustration of a Parallel-veined Leaf.

Green Lynx Spider Eating Honey Bee Stock Photo

RF2F8WC7M–Green Lynx Spider Eating Honey Bee

RF2CBD2AF–Green leaf with pinnately parallel venation pattern

Clipart of three ovate-shaped green leaves on a slender stalk vector color drawing or illustration Stock Vector

RFT6NRHM–Clipart of three ovate-shaped green leaves on a slender stalk vector color drawing or illustration

Rare wildflower- lady's-slipper orchid (Cypripedium calceolus) blooming in its habitat in Estonian nature during springtime Stock Photo

RF2G3E246–Rare wildflower- lady's-slipper orchid (Cypripedium calceolus) blooming in its habitat in Estonian nature during springtime

Clipart of home plant with elongated oval-shaped green leaves growing in a brown pot vector color drawing or illustration Stock Vector

RFT6NT32–Clipart of home plant with elongated oval-shaped green leaves growing in a brown pot vector color drawing or illustration

. Fossil plants : for students of botany and geology . Paleobotany. 14 CYCADALES [CH. species Cycadites Saportae, and it is noteworthy that narrow leaflets with a strongly revolute lamina would produce casts with two parallel ribs (the grooves between the midrib and the edge of the lamina) simulating the double midrib of the fossil genus Pseudocycas. In some fronds, e.g. C. Cairnsiana, the midrib is hardly visible on the upper face of a dried pinna which shows a longitudinal wrinkling simulating parallel venation.. Fig. 385. A,'B,Cycas MicholitzU. (After Thiselton-Dyer.) C, Zamia angustifolia. Stock Photo

RMPG151B–. Fossil plants : for students of botany and geology . Paleobotany. 14 CYCADALES [CH. species Cycadites Saportae, and it is noteworthy that narrow leaflets with a strongly revolute lamina would produce casts with two parallel ribs (the grooves between the midrib and the edge of the lamina) simulating the double midrib of the fossil genus Pseudocycas. In some fronds, e.g. C. Cairnsiana, the midrib is hardly visible on the upper face of a dried pinna which shows a longitudinal wrinkling simulating parallel venation.. Fig. 385. A,'B,Cycas MicholitzU. (After Thiselton-Dyer.) C, Zamia angustifolia.

A creative depiction of two dried out leaves with pinnately netted venation clearly visible. A unique image of two dead leaves. Photo ©️ COLIN HOSKINS. Stock Photo

RFS3PE48–A creative depiction of two dried out leaves with pinnately netted venation clearly visible. A unique image of two dead leaves. Photo ©️ COLIN HOSKINS.

The bright yellow primary or central vein (midrib) runs diagonally through this photograph of a large green leaf sprinkled with the morning dew. Stock Photo

RMDPCEAC–The bright yellow primary or central vein (midrib) runs diagonally through this photograph of a large green leaf sprinkled with the morning dew.

Text-book of structural and physiological botany . Fig. XQ2.—Cylindrical leaf of thestonecrop, Seduni acre. Fig. 193.—Ascidiform leaf of pitcher-plant, Nepejithes.. Fig. 194.—Torneliafragrans, an Aroid, with perforated leaves. ^ [The parallel venation of the leaves is especially characteristic ofEndogens or Monocotyledons ; while all the other modes of venation,comprised genera^y in the term reticulated or net-veined, are foundnearly exclusively in Exogens or Dicotyledons.—Ed.] The External Form of Plants, 107 ox fiJiforni as in the submerged leaves oi Rammculus aquatilis(Fig. 177, p. o6)^ fi Stock Photo

RM2AXH66T–Text-book of structural and physiological botany . Fig. XQ2.—Cylindrical leaf of thestonecrop, Seduni acre. Fig. 193.—Ascidiform leaf of pitcher-plant, Nepejithes.. Fig. 194.—Torneliafragrans, an Aroid, with perforated leaves. ^ [The parallel venation of the leaves is especially characteristic ofEndogens or Monocotyledons ; while all the other modes of venation,comprised genera^y in the term reticulated or net-veined, are foundnearly exclusively in Exogens or Dicotyledons.—Ed.] The External Form of Plants, 107 ox fiJiforni as in the submerged leaves oi Rammculus aquatilis(Fig. 177, p. o6)^ fi

Leaf structure of a Ginkgo (Ginkgo biloba), detail, Frankfurt am Main, Hesse, Germany Stock Photo

RMDE15WT–Leaf structure of a Ginkgo (Ginkgo biloba), detail, Frankfurt am Main, Hesse, Germany

Difference between dicot and monocot leaf Stock Photo

RF2RMR7GJ–Difference between dicot and monocot leaf

Hosta plantaginea texture, background Stock Photo

RF2X0CK81–Hosta plantaginea texture, background

Green leaf parallel venation abstract composition. Stock Photo

RF2F7XMWF–Green leaf parallel venation abstract composition.

Close up backlit yellow green color live tree leaf natural furcate vein net create venation pattern structure background Creative easy light texture. Stock Photo

RFW3M5Y8–Close up backlit yellow green color live tree leaf natural furcate vein net create venation pattern structure background Creative easy light texture.

RF2K60M7B–A close up shot of a green leaf with visible vein system. Veins are composed of xylem and phloem cells. uttarakhand India.

macro of three overlapping large green leaves parallel venation Stock Photo

RF2H7M4RH–macro of three overlapping large green leaves parallel venation

Economic entomology for the farmer Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges economicentomolo00insmit Year: 1896 THE INSECT WORLD. 385 Aphelimis niytilaspidis, parasite on scale insects ; much enlarged. very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long fir Stock Photo

RMT0D5A6–Economic entomology for the farmer Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges economicentomolo00insmit Year: 1896 THE INSECT WORLD. 385 Aphelimis niytilaspidis, parasite on scale insects ; much enlarged. very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long fir

. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . THE INSECT WORLD. 385 very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groove on the under side of the tip of the abdomen, issuing before the Stock Photo

RMMAAABE–. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . THE INSECT WORLD. 385 very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groove on the under side of the tip of the abdomen, issuing before the

RMFB742C–Close up of malaysia leaf

Pinnately Compound Leaves Of Raspberry Stock Photo

RF2F8WCD9–Pinnately Compound Leaves Of Raspberry

RF2CBD2AK–Green leaf with pinnately parallel venation pattern

Lobster claw, false bird-of-paradise, paradise heliconia growing in the sunny meadow. Stock Photo

RFR1E7KK–Lobster claw, false bird-of-paradise, paradise heliconia growing in the sunny meadow.

Clipart of a brown pot with green plants that has ovate-shaped leaves vector color drawing or illustration Stock Vector

RFT6NRJ1–Clipart of a brown pot with green plants that has ovate-shaped leaves vector color drawing or illustration

. Studies in fossil botany . Paleobotany. 522 STUDIES IN FOSSIL BOTANY between their insertions. In some cases.a lateral twig. Fig. 1S8.—Cordaites l&z'is. Branch (restored) bearing the large spathniate leaves, with parallel venation, and the inflorescences, each with numerous catkins. A large bud is also shown. Reduced. After Grand'Eury. is found to be terminated by a large leaf-bud, as shown in Fie- 188.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perf Stock Photo

RMPG1689–. Studies in fossil botany . Paleobotany. 522 STUDIES IN FOSSIL BOTANY between their insertions. In some cases.a lateral twig. Fig. 1S8.—Cordaites l&z'is. Branch (restored) bearing the large spathniate leaves, with parallel venation, and the inflorescences, each with numerous catkins. A large bud is also shown. Reduced. After Grand'Eury. is found to be terminated by a large leaf-bud, as shown in Fie- 188.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perf

Clipart of plants and shrubs turning orange have a round-toothed and scalloped edge vector color drawing or illustration Stock Vector

RFT6N1CP–Clipart of plants and shrubs turning orange have a round-toothed and scalloped edge vector color drawing or illustration

The American botanist and florist; including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union . rather than ribs ? 283. Define Midvein. What leaf has such ? De-fine vein, as in Maple. Veinlets. Veinulets. 284. Name and describe the Venation ofthe Exogens—Of the Endogens—Of the Ferns. 285. What leaf is pinni-veined? —Palmi-vemed ?—Tripli-veined ? Parallel venation how varied ? CHAPTER XXI. MORPHOLOGY OF THE LEAF CONTINUED. 287. That infinite variet Stock Photo

RM2AKNPY1–The American botanist and florist; including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union . rather than ribs ? 283. Define Midvein. What leaf has such ? De-fine vein, as in Maple. Veinlets. Veinulets. 284. Name and describe the Venation ofthe Exogens—Of the Endogens—Of the Ferns. 285. What leaf is pinni-veined? —Palmi-vemed ?—Tripli-veined ? Parallel venation how varied ? CHAPTER XXI. MORPHOLOGY OF THE LEAF CONTINUED. 287. That infinite variet

RMDE15WR–Leaf structure of a Ginkgo (Ginkgo biloba), detail, Frankfurt am Main, Hesse, Germany

Clipart of a red leaf oval In shape with a pointed tip a brown stalk and band-like yellow margins vector color drawing or illustration Stock Vector

RFT6N1WK–Clipart of a red leaf oval In shape with a pointed tip a brown stalk and band-like yellow margins vector color drawing or illustration

RF2X0CK4D–Hosta plantaginea texture, background

RFW3M5WX–Close up backlit yellow green color live tree leaf natural furcate vein net create venation pattern structure background Creative easy light texture.

RF2H7M4RA–macro of three overlapping large green leaves parallel venation

Economic entomology for the farmer Economic entomology for the farmer.. economicentomolo00smit 0 Year: 1896 THE IXSECT WORLD. Qxy few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groove on the under side of the tip of the abdomen, issuing before the apex. These Chalcidid flies ar Stock Photo

RMT0D5A8–Economic entomology for the farmer Economic entomology for the farmer.. economicentomolo00smit 0 Year: 1896 THE IXSECT WORLD. Qxy few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groove on the under side of the tip of the abdomen, issuing before the apex. These Chalcidid flies ar

. Economic entomology for the farmer and fruit-grower . Aphelinus mytilaspidis, parasite on scale insects ; much enlarged. very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groove on the under side of the tip of the abdomen, issuing before the apex. These Chalcidid fl Stock Photo

RMMAA936–. Economic entomology for the farmer and fruit-grower . Aphelinus mytilaspidis, parasite on scale insects ; much enlarged. very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groove on the under side of the tip of the abdomen, issuing before the apex. These Chalcidid fl

Leaves Of The Raspberry Shrub Stock Photo

RF2J0WFJN–Leaves Of The Raspberry Shrub

Lobster claw, false bird-of-paradise, paradise heliconia growing in the meadow. Stock Photo

RFR1E7KF–Lobster claw, false bird-of-paradise, paradise heliconia growing in the meadow.

. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. 120 438. Parallel venation is of two principal kinds : (1) that in wliich. large nerves run in long curves from the base to the apex of the leaf; (2) that in which smaller nerves run generally at right an- gles from a main nerve (or midrib) to the edges of the leaf. In both these kinds of parallel venation the veins are more or less con- nected bj' means of inconspicuous cross-veinlets and b^- the anasto- mosing extremities, but some of the veins may be free. 4 Stock Photo

RMPG3X8H–. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. 120 438. Parallel venation is of two principal kinds : (1) that in wliich. large nerves run in long curves from the base to the apex of the leaf; (2) that in which smaller nerves run generally at right an- gles from a main nerve (or midrib) to the edges of the leaf. In both these kinds of parallel venation the veins are more or less con- nected bj' means of inconspicuous cross-veinlets and b^- the anasto- mosing extremities, but some of the veins may be free. 4

. Nature and development of plants . le; b, blade. B. leaf of Solomons seal with parallel venation andblade clasping stem without petiole. leaves bring the plant into harmony with its surroundings andgive to it a subtle individuality owing to the perfection of theirarrangements, structures and forms for the work in hand. The 7 8 THE VRK !• THE LEAF more important work performed by the leaves is the construction of foods, the giving off of water or transpiration, and breathingor respiration. The magnitude of this work far exceeds theenergy expended in all the industries of the world. The leave Stock Photo

RM2CDEGR4–. Nature and development of plants . le; b, blade. B. leaf of Solomons seal with parallel venation andblade clasping stem without petiole. leaves bring the plant into harmony with its surroundings andgive to it a subtle individuality owing to the perfection of theirarrangements, structures and forms for the work in hand. The 7 8 THE VRK !• THE LEAF more important work performed by the leaves is the construction of foods, the giving off of water or transpiration, and breathingor respiration. The magnitude of this work far exceeds theenergy expended in all the industries of the world. The leave

RF2X0CKMG–Hosta plantaginea texture, background

RFW3M5PF–Close up backlit yellow green color live tree leaf natural furcate vein net create venation pattern structure background Creative easy light texture.

RF2H7M4R5–macro of three overlapping large green leaves parallel venation

Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 THE INSECT WORLD. 385 Aphelinus mytilaspidis, parasite on scale insects ; much enlarged. very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groo Stock Photo

RMT0D5A5–Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 THE INSECT WORLD. 385 Aphelinus mytilaspidis, parasite on scale insects ; much enlarged. very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groo

RMMAABNR–. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . THE INSECT WORLD. 385 very i&, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groove on the under side of the tip of the abdomen, issuing befor

Vertical Pinnate Compound Raspberry Leaves Stock Photo

RF2D6J6T7–Vertical Pinnate Compound Raspberry Leaves

RFR1E7KE–Lobster claw, false bird-of-paradise, paradise heliconia growing in the sunny meadow.

. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. VENATION OF LEAVES. 157. 120 438. Parallel venation is of two principal kinds : (1) that in wliich. large nerves run in long curves from the base to the apex of the leaf; (2) that in which smaller nerves run generally at right an- gles from a main nerve (or midrib) to the edges of the leaf. In both these kinds of parallel venation the veins are more or less con- nected bj' means of inconspicuous cross-veinlets and b^- the anasto- mosing extremities, but some of Stock Photo

RMPG3X94–. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. VENATION OF LEAVES. 157. 120 438. Parallel venation is of two principal kinds : (1) that in wliich. large nerves run in long curves from the base to the apex of the leaf; (2) that in which smaller nerves run generally at right an- gles from a main nerve (or midrib) to the edges of the leaf. In both these kinds of parallel venation the veins are more or less con- nected bj' means of inconspicuous cross-veinlets and b^- the anasto- mosing extremities, but some of

. Nature and development of plants . Fig. 3. Forms of leaves: A, leaf of white birch with netted veins—p, petiole; b, blade. B. leaf of Solomons seal with parallel venation andblade clasping stem without petiole. leaves bring the plant into harmony with its surroundings andgive to it a subtle individuality owing to the perfection of theirarrangements, structures and forms for the work in hand. The 7 8 THE VRK !• THE LEAF more important work performed by the leaves is the construction of foods, the giving off of water or transpiration, and breathingor respiration. The magnitude of this work fa Stock Photo

RM2CDEPG4–. Nature and development of plants . Fig. 3. Forms of leaves: A, leaf of white birch with netted veins—p, petiole; b, blade. B. leaf of Solomons seal with parallel venation andblade clasping stem without petiole. leaves bring the plant into harmony with its surroundings andgive to it a subtle individuality owing to the perfection of theirarrangements, structures and forms for the work in hand. The 7 8 THE VRK !• THE LEAF more important work performed by the leaves is the construction of foods, the giving off of water or transpiration, and breathingor respiration. The magnitude of this work fa

RF2X0CM22–Hosta plantaginea texture, background

RFW3M5P6–Close up backlit yellow green color live tree leaf natural furcate vein net create venation pattern structure background Creative easy light texture.

Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 THE INSECT WORLD. 385 very i&, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groo Stock Photo

RMT0D5A4–Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 THE INSECT WORLD. 385 very i&, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groo

. Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges . Aphelimis niytilaspidis, parasite on scale insects ; much enlarged. very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groove on the un Stock Photo

RMMAAB37–. Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges . Aphelimis niytilaspidis, parasite on scale insects ; much enlarged. very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groove on the un

Spider Raspberry Leaf Eating Bee Stock Photo

RF2F8WC6K–Spider Raspberry Leaf Eating Bee

RFR1E7K9–Lobster claw, false bird-of-paradise, paradise heliconia growing in the sunny meadow.

. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. EXTERNAL CHARACTERISTICS 205 should be noted that parallel-veined leaves have net veins also; that is, the very small, invisible veins which branch off from the principal ones are of this character. Much of the beauty of the individual leaf is due to its venation. Sometimes the veins have all the delicacy and symmetry of beautiful lace work, as may be seen by hold- ing the leaf up to the light. The large veins send off smaller branches and these send off s Stock Photo

RMPG419M–. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. EXTERNAL CHARACTERISTICS 205 should be noted that parallel-veined leaves have net veins also; that is, the very small, invisible veins which branch off from the principal ones are of this character. Much of the beauty of the individual leaf is due to its venation. Sometimes the veins have all the delicacy and symmetry of beautiful lace work, as may be seen by hold- ing the leaf up to the light. The large veins send off smaller branches and these send off s

. Botany of the living plant. Botany; Plants. APPENDIX A 607 (Ruseus), while some are climbers (Smilax, Diosccrea). They have for the most part entire leaves, with sheathing base, and parallel venation : but the Dioscoreaceae are exceptional in having broad reticulate leaves. The flowers are constructed on a type which may be accepted as a general underlying plan for Monocotyledons, being com- posed of five alternating whorls of parts. The number of parts in each whorl is commonly three ; but other numbers may be found, such as two (Maianihemum), or four, or even five (Paris, Aspidistra). The Stock Photo

RMRH7YJH–. Botany of the living plant. Botany; Plants. APPENDIX A 607 (Ruseus), while some are climbers (Smilax, Diosccrea). They have for the most part entire leaves, with sheathing base, and parallel venation : but the Dioscoreaceae are exceptional in having broad reticulate leaves. The flowers are constructed on a type which may be accepted as a general underlying plan for Monocotyledons, being com- posed of five alternating whorls of parts. The number of parts in each whorl is commonly three ; but other numbers may be found, such as two (Maianihemum), or four, or even five (Paris, Aspidistra). The

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RFW3M6XY–Close up backlit yellow green color live tree leaf natural furcate vein net create venation pattern structure background Creative easy light texture.

RMRX9HMA–Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomolo00smit Year: 1906 THE INSECT WORLD. 385 very few, except small forms, which are quite usually metallic black, bronze, or green. The wings are without venation, except for a strong vein running parallel to the costal margin, but not reaching quite to the tip, and the antennae are geniculated Fig. 443. or abruptly bent at the end of the long first joint. Few of these have the ovipositor visible, and usually it lies in a groo

RFR1E7KA–Lobster claw, false bird-of-paradise, paradise heliconia growing in the sunny meadow.

. Beginners' botany. Botany. 74 BEGINNERS' BOTANY The method of compounding or branching follows the mode of veining. The veining, or venation, is of two gen- eral kinds: in some plants the main veins diverge, and there is a conspicuous net- work of smaller veins; such leaves are netted-veined. They are characteristic of the dicotyledons. In other plants the main veins are parallel, or nearly so, and there is no conspicuous network; these are parallel-veined leaves (Figs. 89, 102). These leaves are the rule in monocoty- ledonous plants. The venation of netted- veined leaves is pinnate or feath Stock Photo

RMPG26MR–. Beginners' botany. Botany. 74 BEGINNERS' BOTANY The method of compounding or branching follows the mode of veining. The veining, or venation, is of two gen- eral kinds: in some plants the main veins diverge, and there is a conspicuous net- work of smaller veins; such leaves are netted-veined. They are characteristic of the dicotyledons. In other plants the main veins are parallel, or nearly so, and there is no conspicuous network; these are parallel-veined leaves (Figs. 89, 102). These leaves are the rule in monocoty- ledonous plants. The venation of netted- veined leaves is pinnate or feath

. A manual of botany. Botany. 196 MANUAL OF BOTANY racter.—Balboas or fibrous-rooted plants, without any aerial stem, or sometimes with a woody one. Leaves with parallel venation, and usually linear-ensiform, sometimes dry and harsh. Fig. 942. Fig. 943.. Fig. 945.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Green, J. Reynolds (Joseph Reynolds), 1848-1914. London, J. & A. Churchill Stock Photo

RMRE1KT6–. A manual of botany. Botany. 196 MANUAL OF BOTANY racter.—Balboas or fibrous-rooted plants, without any aerial stem, or sometimes with a woody one. Leaves with parallel venation, and usually linear-ensiform, sometimes dry and harsh. Fig. 942. Fig. 943.. Fig. 945.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Green, J. Reynolds (Joseph Reynolds), 1848-1914. London, J. & A. Churchill

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RFW3M5W3–Close up backlit yellow green color live tree leaf natural furcate vein net create venation pattern structure background Creative easy light texture.

RFR1E7KJ–Lobster claw, false bird-of-paradise, paradise heliconia growing in the sunny meadow.

RMPG419B–. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. EXTERNAL CHARACTERISTICS 207 others, however, have leaves of such variable shape that they are of little value as a means of recognition. The shape of a leaf depends a good deal, as has been noted, upon the character of its venation. Parallel-veined leaves tend to be long and narrow; net-veined leaves tend to be oval. Long and nar- row leaves, like grass blades, are called linear. Leaves whose shape approaches that of an oval are called ovate. As to the na

. Nature and development of plants. Botany. Fig. 3. Forms of leaves: A, leaf of white birch with netted veins—p, petiole; b, blade. B, leaf of Solomon's seal with parallel venation and blade clasping stem without petiole. leaves bring the plant into harmony with its surroundings and give to it a subtle individuality owing to the perfection of their arrangements, structures and forms for the work in hand. The 7. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not per Stock Photo

RMRE0PXT–. Nature and development of plants. Botany. Fig. 3. Forms of leaves: A, leaf of white birch with netted veins—p, petiole; b, blade. B, leaf of Solomon's seal with parallel venation and blade clasping stem without petiole. leaves bring the plant into harmony with its surroundings and give to it a subtle individuality owing to the perfection of their arrangements, structures and forms for the work in hand. The 7. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not per

RF2X0CK4G–Hosta plantaginea texture, background

RFR1E7KW–Lobster claw, false bird-of-paradise, paradise heliconia growing in the sunny meadow.

. Analytical class-book of botany : designed for academies and private students. Plants. 38 AKRANGEMENT AND VENATION. Plate XI.. General subject. What do figs, 1, 3 and 4 represent? How are the leaves ftt 1, at 8, at 4, at 8? "What flgures are of Net-veined leaves—Parallel-veined— Forked-veined ? How are the veins in the "Water-Chestnut—in the Orchis— the Grass—the Falra—the Castor-oil plant—the Fern—the Acacia? What largo groups are distinguished hy the two principal forms? Figures of radiatcly veined leaves, what ?. Please note that these images are extracted from scanned page imag Stock Photo

RMPG0BA2–. Analytical class-book of botany : designed for academies and private students. Plants. 38 AKRANGEMENT AND VENATION. Plate XI.. General subject. What do figs, 1, 3 and 4 represent? How are the leaves ftt 1, at 8, at 4, at 8? "What flgures are of Net-veined leaves—Parallel-veined— Forked-veined ? How are the veins in the "Water-Chestnut—in the Orchis— the Grass—the Falra—the Castor-oil plant—the Fern—the Acacia? What largo groups are distinguished hy the two principal forms? Figures of radiatcly veined leaves, what ?. Please note that these images are extracted from scanned page imag

RMRDTHTX–. Nature and development of plants. Botany. Fig. 3. Forms of leaves: A, leaf of white birch with netted veins—p, petiole; b, blade. B, leaf of Solomon's seal with parallel venation and blade clasping stem without petiole. leaves bring the plant into harmony with its surroundings and give to it a subtle individuality owing to the perfection of their arrangements, structures and forms for the work in hand. The 7. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not per

RF2X0CM2M–Hosta plantaginea texture, background

. Fossil plants : for students of botany and geology . Paleobotany. XXVIl] GLOSSOPTERIS 499 Glossopteris Browniana, Brongniart^ Figs. 334—36. The specific name Browniana is now applied to obtusely pointed leaves which sometimes reach a length of 15 cm., but are usually rather shorter. In form and venation they closely resemble the leaves of the recent genus Antrophyum and species of Acrostichum. The comparatively broad midrib may. Fig. 334. Glossopteris Browniana, Brongn. A. Nat. size : Bx,^. be replaced in its proximal portion by several parallel veins: from it are given off numerous lateral Stock Photo

RMPG14MX–. Fossil plants : for students of botany and geology . Paleobotany. XXVIl] GLOSSOPTERIS 499 Glossopteris Browniana, Brongniart^ Figs. 334—36. The specific name Browniana is now applied to obtusely pointed leaves which sometimes reach a length of 15 cm., but are usually rather shorter. In form and venation they closely resemble the leaves of the recent genus Antrophyum and species of Acrostichum. The comparatively broad midrib may. Fig. 334. Glossopteris Browniana, Brongn. A. Nat. size : Bx,^. be replaced in its proximal portion by several parallel veins: from it are given off numerous lateral

. Outlines of plant life : with special reference to form and function . Botany. THE LEAVES. I05 as foliage. For example, the petiole may be made sensitive to contact, and adapted to wrap about slender objects, like a tendril, as in clematis and nasturtium (fig. 100). Such plants are called leaf-climbers. Some plants develop their leaves into the form of sacs or. Fig. 98. Fig. gg. Fin 98.—Parallel venation of leaf of Polyganatum latifolium. Natural size.—After Fig. gg.—Pinnately netted venation of leaf of a willow. Natural size.—After Ettings- hausen. pitchers. These ordinarily represent the b Stock Photo

RMRDHPHM–. Outlines of plant life : with special reference to form and function . Botany. THE LEAVES. I05 as foliage. For example, the petiole may be made sensitive to contact, and adapted to wrap about slender objects, like a tendril, as in clematis and nasturtium (fig. 100). Such plants are called leaf-climbers. Some plants develop their leaves into the form of sacs or. Fig. 98. Fig. gg. Fin 98.—Parallel venation of leaf of Polyganatum latifolium. Natural size.—After Fig. gg.—Pinnately netted venation of leaf of a willow. Natural size.—After Ettings- hausen. pitchers. These ordinarily represent the b

RF2X0CM2D–Hosta plantaginea texture, background

. Outlines of botany for the high school laboratory and classroom (based on Gray's Lessons in botany) Prepared at the request of the Botanical Dept. of Harvard University. Botany; Botany. 61. Reticulated veration of a AVillow leaf.—Ettings- HAUSEN. 02. Parallel venation of the Lily of the Valley leaf. — Ettinoshaosen. kind of veiniTig in a leaf with a single rib. The IIaple, Basswood, and Plane or P>tittonwood show it in leaves of several ribs. 123. Tn parallel-veined leaves, the whole framework consists of slender ribs or veins, which run parallel with each other, or nearly so, from the b Stock Photo

RMRDX20N–. Outlines of botany for the high school laboratory and classroom (based on Gray's Lessons in botany) Prepared at the request of the Botanical Dept. of Harvard University. Botany; Botany. 61. Reticulated veration of a AVillow leaf.—Ettings- HAUSEN. 02. Parallel venation of the Lily of the Valley leaf. — Ettinoshaosen. kind of veiniTig in a leaf with a single rib. The IIaple, Basswood, and Plane or P>tittonwood show it in leaves of several ribs. 123. Tn parallel-veined leaves, the whole framework consists of slender ribs or veins, which run parallel with each other, or nearly so, from the b

RF2X0CK5Y–Hosta plantaginea texture, background

. Botany of the living plant. Botany. 494 BOTANY OF THE LIVING PLANT base, and parallel venation ; but the Dioscoreaceae are exceptional in having broad reticulate leaves. The flowers are constructed on a type which may be accepted as a general underlying plan for Monocotyledons, being com- posed of five alternating whorls of parts. The number of parts in each whorl is commonly three ; but other numbers may be found, such as two (Maianthemum), or four, or even five {Paris, Aspidistra). The floral formula is P. n + n, And. n + n, Gyn. (n), and the floral diagram as in Fig. 397. The more primiti Stock Photo

RMRH8D6N–. Botany of the living plant. Botany. 494 BOTANY OF THE LIVING PLANT base, and parallel venation ; but the Dioscoreaceae are exceptional in having broad reticulate leaves. The flowers are constructed on a type which may be accepted as a general underlying plan for Monocotyledons, being com- posed of five alternating whorls of parts. The number of parts in each whorl is commonly three ; but other numbers may be found, such as two (Maianthemum), or four, or even five {Paris, Aspidistra). The floral formula is P. n + n, And. n + n, Gyn. (n), and the floral diagram as in Fig. 397. The more primiti

RF2X0CK4B–Hosta plantaginea texture, background

the Hosta plantaginea in harsh light, plant background Stock Photo

RF2XAE1T9–the Hosta plantaginea in harsh light, plant background

RMRDFE7H–. Fossil plants : for students of botany and geology . Paleobotany. 14 CYCADALES [CH. species Cycadites Saportae, and it is noteworthy that narrow leaflets with a strongly revolute lamina would produce casts with two parallel ribs (the grooves between the midrib and the edge of the lamina) simulating the double midrib of the fossil genus Pseudocycas. In some fronds, e.g. C. Cairnsiana, the midrib is hardly visible on the upper face of a dried pinna which shows a longitudinal wrinkling simulating parallel venation.. Fig. 385. A,'B,Cycas MicholitzU. (After Thiselton-Dyer.) C, Zamia angustifolia.

Hosta plantaginea in harsh light, plant background Stock Photo

RF2XAE1P9–Hosta plantaginea in harsh light, plant background

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