. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. FERNS 4ig gonium is often only a small part of it. Sporangia, on the other hand, are exclusively devoted to producing spores,. Fig. 210. — Adiantum, the maidenhair fern. Cross section of the stem. The fol- lowing tissues are evident: epidermis, a thick cortex, outer phloem, xylem r (thick-walled cells), inner phloem, pith. The phloem, the xylem, arid the pith, taken together, constitute the stele. and they are only a very small part of the whole sporophyte

. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. FERNS 4ig gonium is often only a small part of it. Sporangia, on the other hand, are exclusively devoted to producing spores,. Fig. 210. — Adiantum, the maidenhair fern. Cross section of the stem. The fol- lowing tissues are evident: epidermis, a thick cortex, outer phloem, xylem r (thick-walled cells), inner phloem, pith. The phloem, the xylem, arid the pith, taken together, constitute the stele. and they are only a very small part of the whole sporophyte Stock Photo

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. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. FERNS 4ig gonium is often only a small part of it. Sporangia, on the other hand, are exclusively devoted to producing spores, . Fig. 210. — Adiantum, the maidenhair fern. Cross section of the stem. The fol- lowing tissues are evident: epidermis, a thick cortex, outer phloem, xylem r (thick-walled cells), inner phloem, pith. The phloem, the xylem, arid the pith, taken together, constitute the stele. and they are only a very small part of the whole sporophyte generation. When the spores of pteridophytes germinate, they pro- duce a structure called the prothallium. Since this struc-. 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.. Coulter, John G. (John Gaylord), b. 1876. New York, American Book Co

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