. Plant life, considered with special references to form and function. Plant physiology. 3^4- Fig. 325. Fig. 324.—Fgg of/>/r;/,f as it lluats in se:\-\\ater, surrounded by many .sperms, one of wliich e\'entua]ly plunges iutu it, unites with its nucleus and so fertilizes it. .Magnified 350 diani,—After Thuret. Fig, 32^,—Portion of two o\anes of an alga {S/>/i,t7-oy>h\i anunHna). Tlie upper part contains two eggs, and a number (if sperms which have entered through the pore at the side. The lower egg of the two shows the receptive spot above, A sperm is partially imbedded in the protopla
. Plant life, considered with special references to form and function. Plant physiology. 3^4- Fig. 325. Fig. 324.—Fgg of/>/r;/,f as it lluats in se:\-\\ater, surrounded by many .sperms, one of wliich e\'entua]ly plunges iutu it, unites with its nucleus and so fertilizes it. .Magnified 350 diani,—After Thuret. Fig, 32^,—Portion of two o\anes of an alga {S/>/i,t7-oy>h\i anunHna). Tlie upper part contains two eggs, and a number (if sperms which have entered through the pore at the side. The lower egg of the two shows the receptive spot above, A sperm is partially imbedded in the protoplasm of tliis part in process of fertilization The egg in the lower ovary has Ijeen fertilized and lias secreted a tliick wall, thus becom- ing a resting spore, Ma,gnificd 500 diam, — After Cohn. A portion of the protoplasm of the ovary is almost inxarialily excluded from the egg [B, fig. 30S). The sperms reach the egg either through an opening formed in the wall of tlie o\'ary (D, fig. 308, 325), or through a tube foriricd by the spermary, which penetrates the oxary (fig. 307).. 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 Barnes, Charles Reid, 1858-1910. New York, H. Holt & company
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectplantphysiology
