. The developmental anatomy of Isoetes. Isoetes; Botany. Orth.-2 Orth. I Orth. 2. Figs. 15 and 16. Outlines of roots and locations of root traces in transverse sections of a plant of moderate size. X 50. Figure 16 is at a higher level in the plant than figure 15. The basal furrow runs from left to right so that the drawings can be viewed in a standardized position on the x- and y-axes. Series of roots are numbered according to information obtained from a study of serial sections. Other sections in the series are drawn as figures 17, 18, and 19. Explanations of the figures are in the text. In f

. The developmental anatomy of Isoetes. Isoetes; Botany. Orth.-2 Orth. I Orth. 2. Figs. 15 and 16. Outlines of roots and locations of root traces in transverse sections of a plant of moderate size. X 50. Figure 16 is at a higher level in the plant than figure 15. The basal furrow runs from left to right so that the drawings can be viewed in a standardized position on the x- and y-axes. Series of roots are numbered according to information obtained from a study of serial sections. Other sections in the series are drawn as figures 17, 18, and 19. Explanations of the figures are in the text. In f Stock Photo

RMID:PFA999

Image details

Contributor:

Central Historic Books / Alamy Stock Photo

Image ID:

PFA999

File size:

7.1 MB (259.1 KB Compressed download)

Releases:

Model - no | Property - noDo I need a release?

Dimensions:

1269 x 1969 px | 21.5 x 33.3 cm | 8.5 x 13.1 inches | 150dpi

More information:

This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.

This image could have imperfections as it’s either historical or reportage.

. The developmental anatomy of Isoetes. Isoetes; Botany. Orth.-2 Orth. I Orth. 2. Figs. 15 and 16. Outlines of roots and locations of root traces in transverse sections of a plant of moderate size. X 50. Figure 16 is at a higher level in the plant than figure 15. The basal furrow runs from left to right so that the drawings can be viewed in a standardized position on the x- and y-axes. Series of roots are numbered according to information obtained from a study of serial sections. Other sections in the series are drawn as figures 17, 18, and 19. Explanations of the figures are in the text. In figure 15, the series con- verge with the X-axis. The abbreviation "ser." is used for "series" in figures 15 to 19.. 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.. Paolillo, Dominick J. Urbana, University of Illinois Press

Search stock photos by tags

bookcentury1900 bookcollectionbiodiversity booksubjectbotany

Similar stock images

RMPFA98P–. The developmental anatomy of Isoetes. Isoetes; Botany. Orth. -2 Y-Axis 0-Orth. Orth. 2. Orth. -I Y-Axis Orth. I Orth. -2. 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.. Paolillo, Dominick J. Urbana, University of Illinois Press

RMW1CPBK–Archive image from page 71 of The developmental anatomy of Isoetes. The developmental anatomy of Isoetes . developmentalana31paol Year: 1963 58 THE DEVELOPMENTAL ANATOMY OF IsoeteS Prthostichies Basal Furrow, or Groove Fig. 14. Sketch of the lower surface of a mature sporophyte in which the Hving roots were limited to one row along each side of the basal furrow. These two rows each form a series of roots. The members of the two series are on alternate orthostichies. Schematic. The abbreviation 'orth.' is used for 'orthos- tichy' in figures 15 to 19. series occupy alternate orthostichies. T

RMRCW9KH–. The developmental anatomy of Isoetes. Isoetes; Botany. Orth. -2 Y-Axis 0-Orth. Orth. 2. Orth. -I Y-Axis Orth. I Orth. -2. 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.. Paolillo, Dominick J. Urbana, University of Illinois Press

RMPFA98W–. The developmental anatomy of Isoetes. Isoetes; Botany. 58 THE DEVELOPMENTAL ANATOMY OF IsoeteS Prthostichies. Basal Furrow, or Groove Fig. 14. Sketch of the lower surface of a mature sporophyte in which the Hving roots were limited to one row along each side of the basal furrow. These two rows each form a series of roots. The members of the two series are on alternate orthostichies. Schematic. The abbreviation "orth." is used for "orthos- tichy" in figures 15 to 19. series occupy alternate orthostichies. This alternation can be seen in plate 16, B, by comparing series S a

RMW1CTFE–Archive image from page 75 of The developmental anatomy of Isoetes. The developmental anatomy of Isoetes . developmentalana31paol Year: 1963 Orth. -I Y-Axis Orth. I Orth. -2 Figs. 17 and 18. Transverse sections in the same series as figures 15 and 16, at higher levels in the plant. X 80. Fig. 17. A level near the basal meristem. The traces are crowded. The series no longer converge with the x-axis. Fig. 18. At the level of the recent derivatives of the basal meristem. All of the primordia within the youngest series are recorded within the limits of orthos- tichies —2 and 2. The series dive

RMRCW9KR–. The developmental anatomy of Isoetes. Isoetes; Botany. 58 THE DEVELOPMENTAL ANATOMY OF IsoeteS Prthostichies. Basal Furrow, or Groove Fig. 14. Sketch of the lower surface of a mature sporophyte in which the Hving roots were limited to one row along each side of the basal furrow. These two rows each form a series of roots. The members of the two series are on alternate orthostichies. Schematic. The abbreviation "orth." is used for "orthos- tichy" in figures 15 to 19. series occupy alternate orthostichies. This alternation can be seen in plate 16, B, by comparing series S a

RMPFA98M–. The developmental anatomy of Isoetes. Isoetes; Botany. Orth. -I Y-Axis Orth. I Orth. -2. Figs. 17 and 18. Transverse sections in the same series as figures 15 and 16, at higher levels in the plant. X 80. Fig. 17. A level near the basal meristem. The traces are crowded. The series no longer converge with the x-axis. Fig. 18. At the level of the recent derivatives of the basal meristem. All of the primordia within the youngest series are recorded within the limits of orthos- tichies —2 and 2. The series diverge from the x-axis.. Please note that these images are extracted from scanned page ima

RMW1CRG0–Archive image from page 73 of The developmental anatomy of Isoetes. The developmental anatomy of Isoetes . developmentalana31paol Year: 1963 Orth.-2 Orth. I Orth. 2 Figs. 15 and 16. Outlines of roots and locations of root traces in transverse sections of a plant of moderate size. X 50. Figure 16 is at a higher level in the plant than figure 15. The basal furrow runs from left to right so that the drawings can be viewed in a standardized position on the x- and y-axes. Series of roots are numbered according to information obtained from a study of serial sections. Other sections in the series

RMRCW9KF–. The developmental anatomy of Isoetes. Isoetes; Botany. Orth. -I Y-Axis Orth. I Orth. -2. Figs. 17 and 18. Transverse sections in the same series as figures 15 and 16, at higher levels in the plant. X 80. Fig. 17. A level near the basal meristem. The traces are crowded. The series no longer converge with the x-axis. Fig. 18. At the level of the recent derivatives of the basal meristem. All of the primordia within the youngest series are recorded within the limits of orthos- tichies —2 and 2. The series diverge from the x-axis.. Please note that these images are extracted from scanned page ima

RMRCW9K9–. The developmental anatomy of Isoetes. Isoetes; Botany. THE ROOT-PRODUCING MERISTEM 63 Y-Axis 0-Orth. Orth. - Orth. I Orth. -2 Orth. 2. # = Ser. I and -I 0=Ser. 2 and -2 19 Fig. 19. A portion of figure 18. The two zigzag lines (broken one connecting empty spots; solid one connecting solid spots) trace bidirectional sequences of decreasing maturation. Each sequence starts on the 0-orthostichy and in- cludes members of the pair of series most comparable in maturation. Scott and Hill (1900) represented roots in series with different lengths in their text figure 11, and their explanation that the

RMPFA98F–. The developmental anatomy of Isoetes. Isoetes; Botany. THE ROOT-PRODUCING MERISTEM 63 Y-Axis 0-Orth. Orth. - Orth. I Orth. -2 Orth. 2. # = Ser. I and -I 0=Ser. 2 and -2 19 Fig. 19. A portion of figure 18. The two zigzag lines (broken one connecting empty spots; solid one connecting solid spots) trace bidirectional sequences of decreasing maturation. Each sequence starts on the 0-orthostichy and in- cludes members of the pair of series most comparable in maturation. Scott and Hill (1900) represented roots in series with different lengths in their text figure 11, and their explanation that the

RMRCW9KK–. The developmental anatomy of Isoetes. Isoetes; Botany. Orth.-2 Orth. I Orth. 2. Figs. 15 and 16. Outlines of roots and locations of root traces in transverse sections of a plant of moderate size. X 50. Figure 16 is at a higher level in the plant than figure 15. The basal furrow runs from left to right so that the drawings can be viewed in a standardized position on the x- and y-axes. Series of roots are numbered according to information obtained from a study of serial sections. Other sections in the series are drawn as figures 17, 18, and 19. Explanations of the figures are in the text. In f