. Morphology of angiosperms (Morphology of spermatophytes. Part II). Angiosperms; Plant morphology. Fig. 107-—Balanophora elongata. Stages in development of embryo-sac, endosperm, and embryo. A, archegonium-like megasporangium with mother-cell that becomes megaspore directly without, forming tetrad; x 145; i?, quadrinucleate stage of embryo-sac; x 200; C, nearly mature sac showing above the two syuergids and oosphere, just beneath the micropylar polar nucleus, and at opposite end of sac a group of four nuclei, the three antipodals, and the lower polar nucleus; x '280; Z), at upper cud the syne
. Morphology of angiosperms (Morphology of spermatophytes. Part II). Angiosperms; Plant morphology. Fig. 107-—Balanophora elongata. Stages in development of embryo-sac, endosperm, and embryo. A, archegonium-like megasporangium with mother-cell that becomes megaspore directly without, forming tetrad; x 145; i?, quadrinucleate stage of embryo-sac; x 200; C, nearly mature sac showing above the two syuergids and oosphere, just beneath the micropylar polar nucleus, and at opposite end of sac a group of four nuclei, the three antipodals, and the lower polar nucleus; x '280; Z), at upper cud the synergids and egg are disorganizing, just beneath are two cells resulting from first division of upper polar nucleus ; x 2S0 ; £\ six cells of endosperm shown; syuergids and egg still visible at upper end of sac; x 300; F, two-celled embryo formed from an inner cell of the endosperm ; x 800.—After 220. 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 Coulter, John Merle, 1851-1928; Chamberlain, Charles Joseph, b. 1863. New York, D. Appleton
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Keywords: ., bookauthorcoulterj, bookcentury1900, bookdecade1900, bookyear1903
