Jsclcpiadere,'] 



60. ASCLEPIADEiE. 



231 



produced into an inflexed membrane ; pollen in 1-2 granular or waxy 

 masses in each cell, masses united in pairs or fours to a gland (the 

 corpuscle) which lies on the stigma. Ovary o£ two distinct carpels 

 within the starainal column ; styles 2, short, united by the stigma, 

 which is 5-angled. Fruit of 2 follicles. Seeds usually winged and 

 plumose ; albumen copious, dense. 



Periplocese. — "Filaments usually free. Anthers acu- 

 minate, poUen-inasses granular in pairs in each cell. 

 Corona of 5, free, short, thick, not aristate, scales. 



Corolla-lobes valvate 1. Hemidesmfs. 



Corolla-lobes imbricate 2. CeyptolepiS, 



Coronal scales connate into a lobed ring , 3. Peeiploca, 



Euasclepiadeae. Filaments connate. Pcllen-masses 

 waxy. 



Anthers with a membranous, inflexed tip. Pollen- 

 masses in pairs in each cell,) 20 in all), in fours on 

 the corpuscle, pendulous, sessile. 



Corolla-lobes imbricate, glabrous , 4, Toxocarpfs. 



Corolla-lobes villous, on the inner face, valvate ... 5. GENiA>THrs. 

 Anthers with a membranous inflexed tip ; Pollen- 

 masses solitary in each cell (10 in all}, sessile or in 

 pairs on the corpuscle, pendulous. 

 Corona staminal of 5, laterally compressed processes 

 adnate to the anthers. Corolla campanulate or fun- 

 nel-shaped. 



Corolla broadly campanulate, lobes valvate. Erect 



shrubs 6. Calotropis. 



Corolla funnel-shaped, lobes imbricate. Twining 



shrubs 7. D^niA. 



Corona staminal, cupular or annular. Corolla rotate. 

 Flowers large, purple. Corona armular, 10-lobed, 



fleshy. Stigma 5- winged. Twining shrub ... 8. HoLOSTEMMA. 

 Flowers small, greenish or purplish. Corona 

 cupular or campanulate, toothed or lobed. 

 Stigma flat, umbonate. Twining shrub ... 9. Cynaitchum. 

 Flowers small, white. Corona membranous, cup- 

 shaped, lobed, alternate lobes with large fleshy 

 processes, adnate to the back of the anthers. 

 Stigma conical. Leafless trailing shrubs ... 10. SabcostemmA. 

 Anthersw itli a membranous, inflexed tip. Pollen-mas- 

 ses solitary in each cell (10 in all), sessile or pedi- 

 celled, in pairs on the corpuscle, erect. 

 Corona on the corolla-tube (corolline). 



Flowers small, rotate or nrceolate. Corolla-lobes 



thick, sub- valvate or overlapping 11, Gymnema. 



Coronal-processes on the staminal-column (staminal). 

 Corolla-lobes overlapping. 



Flowers rather large, greenish. Corolla sal- 

 ver-shaped. Coronal -scales on the back of 



the anthers, flat, notched 12. Peegularia. 



Flowers small, greenish. Corolla rebate. 

 Coronal-scales broad, membranous, ad ante 



to the base of the anthers 13. CosMOSTiGMA. 



Floivers medium -sized, green. Corolla rotate. 

 Coronal-scalfcs 5, fleshy, adnate to the 

 column, inner angle cuspidate, incum- 

 bent on the anthers 14. Dreoea. 



