. A manual of Indian botany. Botany. 242 CLASSIFICATION able to penetrate to the nectar. The mechanism of the flowers of Vinca rosea, tagar and malati, excludes autogamy and induces allogamy. Nat. Order 15. Asclepiadacece.—Herbs or shrubs, usually twining, with milky juice. Leaves usually opposite, entire. Sepals 5, connate in an inferior calyx. Petals 5, connate, lobes valvate, throat of the corolla with a corona of hairs, scales, or processes. Stamens 5, the filaments united in a hollow column. Fig. 208. — Akanda {Calotrofiis gigantea) st. Stigma. «, Anther, d. Disk, t, Caudicle. /, Pollinia
. A manual of Indian botany. Botany. 242 CLASSIFICATION able to penetrate to the nectar. The mechanism of the flowers of Vinca rosea, tagar and malati, excludes autogamy and induces allogamy. Nat. Order 15. Asclepiadacece.—Herbs or shrubs, usually twining, with milky juice. Leaves usually opposite, entire. Sepals 5, connate in an inferior calyx. Petals 5, connate, lobes valvate, throat of the corolla with a corona of hairs, scales, or processes. Stamens 5, the filaments united in a hollow column. Fig. 208. — Akanda {Calotrofiis gigantea) st. Stigma. «, Anther, d. Disk, t, Caudicle. /, Pollinia. ror, Corona. enclosing the style; anthers adnate to the stigma (gynandrous), pollen-grains aggregated into i or 2 pollinia in each anther-lobe, the pollinia being united in pairs or fours to a gland (retinaculum) on the stigma. Carpels, fruits, and seeds as in Apocynacece. The Order is chiefly tropical. Common plants: akanda or madar [Calotropis giganted) (fig. 208); C. procera or safed akanda; ananta-mul or Indian Sar- saparilla {Hemidesmus indicus), a thin twining shrub; Stephanotis floribunda, a large garden climber with handsome white fragrant flowers; different species of Hoya, which are twining epiphytes with thick coria-. 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 Bose, G. C. London, Blackie & Son Ltd.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1920
