. The plant, an illustration of the organic life of the animal. Biology. 136 EEPRODUCTION IN PLANTS AND ANIMALS. elliptical assume a spherical form. A few hours contact is all that is necessary to produce this change in some species, whilst many days are required for others. The swelling in- creases, until at last the thin and highly extensible intine, or inner coat of the pollen grain, is pushed through one of the pores or ostioles in the surface of extine or outer coat, the -Fig. Longitudinal section of tlie pistil of Eelianthwm denticvlatum, showing tUe ovules in the interior of the ov
. The plant, an illustration of the organic life of the animal. Biology. 136 EEPRODUCTION IN PLANTS AND ANIMALS. elliptical assume a spherical form. A few hours contact is all that is necessary to produce this change in some species, whilst many days are required for others. The swelling in- creases, until at last the thin and highly extensible intine, or inner coat of the pollen grain, is pushed through one of the pores or ostioles in the surface of extine or outer coat, the -Fig. Longitudinal section of tlie pistil of Eelianthwm denticvlatum, showing tUe ovules in the interior of the ovary attached to the placenta, by means of the funiculus, or vegetable umbilicus; 6, style; c, stigma; a, pollen granules, the tubes of whict have descended the style and entered the micropyle of the 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 Coultas, Harland, d. 1877. Philadelphia ; Perry and Erety
Size: 1012px × 2469px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorco, bookcentury1800, bookdecade1850, booksubjectbiology
