. A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants . Botany. ASCLEPIADACE^. 535 p. 230). They inhabit chiefly warm and tropical regions, but many species extend to northern climates. Many succulent species are. Fig. 756. found ia the south of Africa. Fig. 769. Pig. 761. Fig. 760. In tropical India and Australia, and Figs. 763-761. Organs of fructification of Asclepias nivea, to illustrate the natural order Asclepiadacese. Fig. 763. Diagram of the flower, with five divisions of the calyx, Ave segments of the corolla, five stamens
. A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants . Botany. ASCLEPIADACE^. 535 p. 230). They inhabit chiefly warm and tropical regions, but many species extend to northern climates. Many succulent species are. Fig. 756. found ia the south of Africa. Fig. 769. Pig. 761. Fig. 760. In tropical India and Australia, and Figs. 763-761. Organs of fructification of Asclepias nivea, to illustrate the natural order Asclepiadacese. Fig. 763. Diagram of the flower, with five divisions of the calyx, Ave segments of the corolla, five stamens, and two ovaries. Fig. 754. The>entire flower, p, CoroUa, with five lohes. a. Appendages forming the staminal crown (corona). Fig. 756. The flower viewed from above, p p, Gamopetalous corolla with its five lobes, a a, Append- ages forming the corona or crown, g g, Glandular bodies attached to the stigma, and bearing the pollen-masses (pollinia). Fig. 766. The flower cut vertically, c. Calyx, jj. Corolla, a a. Coronal appendages, c, Stamens, o, Ovary, s. Styles, which are united at the upper part of the large stigma, at the base of which, towards the points, p p, the pollen tubes enter. Fig. 757. Two pollen-masses, to, attached by two prolongations, (?, in the form of a caudicle or tail, to another body, g, formed by the union of two stigmatic glands. 51, Pollen-grains with tubes beginning to escape from the masses. Pig. 758. One of the pollen-grains, with its tube separated and highly magnified. Fig. 759. Fruit at the period of dehiscence. //, Two follicles, p. Placenta, which is detached, g, Comose seeds. Pig. 760. One of the comose seeds separated. a, The hairy appendage at the hilum. Pig. 761. Seed separated from the hairs and cut vertically. te. External integument. U Internal integument, p, Perisperm or thin albumen, e. Embryo, with leafy cotyledons and superior Please note that these images are extracted from scanned page images that may have been d
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1875
