. Botany of the living plant. Botany. Fig. 2S6. Feililisation in Onoclca sensibilis: the arrows indicate direction to^'the gro^Tng point. A =3. vertical section through an archegonium probably within ten minutes after entrance of the first spennatozoid. ( x 500.) £ =vertical section of the venter of an archegonium, containing spermatozoids, and the collapsed egg with a sperma- tozoid within the nucleus. Thirtj'minutes. ( x 1200.) {After Shaw.) The immediate consequence of fertilisation is growth and segmenta- tion of the zygote, which first secretes a cell-wall. It divides into. Fig. 2S;. Hori
. Botany of the living plant. Botany. Fig. 2S6. Feililisation in Onoclca sensibilis: the arrows indicate direction to^'the gro^Tng point. A =3. vertical section through an archegonium probably within ten minutes after entrance of the first spennatozoid. ( x 500.) £ =vertical section of the venter of an archegonium, containing spermatozoids, and the collapsed egg with a sperma- tozoid within the nucleus. Thirtj'minutes. ( x 1200.) {After Shaw.) The immediate consequence of fertilisation is growth and segmenta- tion of the zygote, which first secretes a cell-wall. It divides into. Fig. 2S;. Horizontal section of an egg, showing coiled male nucleus within the female. Twelve hours. { X 1200.} {.-Vfter Shaw.) octants, four of which constitute an epihasal hemisphere, directed towards the apex of the parent thallus, giving rise to axis and leaf oi. 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 Bower, F. O. (Frederick Orpen), 1855-1948. London, Macmillan and co. , limited
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
