. Botany for high schools and colleges. Botany. Fig. 178.—The sexual organs and fertilization of Peivrtospora AMnearum. a, youngest stage ; o, young oogonium ; n, young antheridinm ; &, the pame somewhat later; the antheridinm is beginning to thrust its heak-like process (fertilizing tube) into the oogonium ; e, the same at a still later stage—the fertilizing tube has reached the oosphete. x 350.—Alter DeBary. in diameter, and finally assume a globular shape ; their highly granular protoplasm becomes condensed, and finally separated from that of the remainder of the filament by a transvers
. Botany for high schools and colleges. Botany. Fig. 178.—The sexual organs and fertilization of Peivrtospora AMnearum. a, youngest stage ; o, young oogonium ; n, young antheridinm ; &, the pame somewhat later; the antheridinm is beginning to thrust its heak-like process (fertilizing tube) into the oogonium ; e, the same at a still later stage—the fertilizing tube has reached the oosphete. x 350.—Alter DeBary. in diameter, and finally assume a globular shape ; their highly granular protoplasm becomes condensed, and finally separated from that of the remainder of the filament by a transverse septum at the base of each oogonium {a, Kg. 178). The other branches, the young anthe- ridia, which arise upon the same fila- ments as the oogonia and near to them, or upon other filaments which are in proximity to the oogonia-bear- ing ones, become elongated and club- shaped ; their protoplasm (also gran- ular) becomes condensed in their up- per portions, which are soon separated. 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 Bessey, Charles E. (Charles Edwin), 1845-1915. New York : H. Holt
Size: 1393px × 1794px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1888
