. Botany, with agricultural applications. Botany. Fig. 282. —Reproduction in Nemalion. A, a portion of Nemalion, bearing antheridia at a and at the right a procarp consisting of carpogonium (c) and trichogyne (() to the tip of which two sperms have become attached; B, fertilized carpogonium beginning to develop branches on the ends of which the carpospores are borne; C, mature cystocarp consisting exteriorly of carpo- spores. X 100-150. Redrawn with modifications from Bornet. structure, composed of a large number of filaments, which are held together by a stiff gelatinous substance. There is a
. Botany, with agricultural applications. Botany. Fig. 282. —Reproduction in Nemalion. A, a portion of Nemalion, bearing antheridia at a and at the right a procarp consisting of carpogonium (c) and trichogyne (() to the tip of which two sperms have become attached; B, fertilized carpogonium beginning to develop branches on the ends of which the carpospores are borne; C, mature cystocarp consisting exteriorly of carpo- spores. X 100-150. Redrawn with modifications from Bornet. structure, composed of a large number of filaments, which are held together by a stiff gelatinous substance. There is a central axis of delicate threads and an outer region consisting of short branches pointing outward. Nemalion produces both spores and gametes {Fig. 282). The two kinds of reproduction are intimately related, for the produc- tion of spores follows closely as a result of fertilization. The female sex organ, which is a very peculiar structure in the Red Algae, is called a procarp. In Nemalion the procarp is borne. 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 Martin, John N. (John Nathan), b. 1875. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1920
