2 XCY. ASCLEPIADEJ;. (J. D. Hooker.) 



Corolla small, rotate, lobes overlapping o. CrrrproLEPis. 



Corolla large, funnel-shaped, lobes overlapping *3. CJCYVTOSTBGIA. 



*** Coronal scales 5, free, close to or adnate to the filament?. 



f Coronal scales short, broad ; filaments without interposed glands, 



A pubescent twining shrub ; leaves opposite 4. BRACHYLEPIS. 



An erect tree ; leaves alternate 5. UTLERIA. 



ft Coronal scales filiform or subulate. 



a. Filaments free without interposed glands. 



Cymes stout, pubescent. Corolla-lobes short, broad ... 6. FINT.AYSONIA. 

 Cymes slender, glabrous. Corolla-lobes slender, straight . 7. ATKKUOSTEMOX. 



/3. Filaments free, with interposed teeth or glands. 



Cymes slender, glabrous. Corolla-lobes short, triangular . 8. ATHBBOZJEFIS. 



Cymes slender, glabrous. Corolla-lobes long, slender. . . 0- ATHERANDRA. 



Cymes short, sessile. Corolla-lobes short, ovate . . . .10. SxRKPTocAri.ox. 



Cymes loosely panicled. Corolla-lobes lanceolate . . . .11. MYRIOPTKK, 



ftt Coronal scales short, broad; filaments connate, with interposed glands. 

 Cymes peduncled. Corolla-lobes ovate, yalvate . . . .12. DECALEPIS. 



**** Coronal scales connate into a lobed ring : filaments without interposed 

 glands. 



Corolla rotate, lobes overlapping 10. P~-,RIFF.OCA. 



SUBORDER II. Euasclepiadeae. Filaments connate : v/Hen-masses 

 waxy*. 



TRIBE II. Secamoneae. Anthers with a membranous inflexed tip : 

 pollen-masses in pairs in each cell (20 in all), sessile in fours (2 pairs) on the 

 corpuscle. 



Corolla rotate, lobes overlapping to the right 11. SECAMONE. 



Corolla rotate, lobes overlapping to the left i,l. TOXOCARPUS. 



Corolla rotate, lobes valvate ifi. GKNIANTHUS. 



TRIBE III. Cynancheae. Anthers witli a membranous inflexed tip ; 

 pollen-masses solitary in each cell (10 in all), sessile or pedicelled in pairs on 

 the corpuscle, pendulous. 



* Corona single, corolline, 6-cleft 17. GI.OSSONEMA. 



** Corona double, corolline and staminal . . . .IS. O-^YSTKLMA. 

 *** Corona staminal, of 5 processes adnate to the anthers ; or 0. 

 f Stem erect. 



Corolla valvate.. Coronal processes laterally compressed . 19. CALOTROPIS. 



Corolla valvate. Coronal processes spathulate *10. ASCLEPIAS. 



Corolla-lobes overlapping. Coronal processes short, fleshy . 20. PKNTABOTHRA. 



tf Stem ticining. Corolla-lobes overlapping. 



Corolla campanulate. Coronal processes ligulate . . . . 21. RAPHTSTEMMA. 

 Corolla rotate. Coronal processes laterally compressed . . 22_ PPM s 

 Corolla funnel-shaped. Coronal processes laterally compressed 23. DJBMIA. 

 Cbrolla campanulate. Coronal processes 24. ADELOSTEMMA. 



