LXXX. ASCLEPIADEJi:. 229 



Corona tubular ; folioles concrete in 3 rows ; 

 outer 15-toothed ; medial of five 3-lobed 

 segments ; inner of 5 subulate-acuminate 

 segments. Anthers tipped witli an oblong, 

 membranous bag ! 29. Fockea. 



Tribe 4. Stapklie.i:. Pollen-masses ascending or erect (other charac- 

 ters as in Eaasclepiadeoi). 



Pollen-masses opaque (without any pellucid spot). 

 Corona 5-parted or of 5 separate folioles. 



Slender, erect herb. Corolla-lobes narrow- 



spathulate 30. Tenaris, 



Climbing slirubs or halfshrubs. Flowers small. 

 Corona of 5 acute or subacute folioles ; fol- 

 licles without wings 31. Ttlophoea. 



Corona of 5 reniform folioles ; folHcles 



broadly 4-winged 32. Deegea. 



Corona 0. Corolla either nude or hairy 

 witliin or with scales in the throat, 

 alternating with the lobes. 

 Corolla with 5 tooth-like scales in the 



throat .' 33. Gymxema. 



Corolla without scales, hairy within . . 3i. Riiyssolobium. 

 Pollen-masses pellucid at one end, or at the inner 

 side. 

 Corolla with a conspicuous tube, more or less 

 inflated, at least at base, often flask- or 

 pitcher-sliaped. 

 Corolla salver-shaped. Corona bluntly 5- 



lobed 35. Barkowia. 



Corolla-tube bottle- bag- or pitcher-shaped. 

 Corona double ; outer of 5 spreading, spur- 

 like lobes ; inner of very short obtuse 

 lobes opposite the anthers ; follicles to- 



rulose 36. Eiocreuxia. 



Corona bell-shaped in a double row, the 

 lobes 5, 10, 15, those opposite the anthers 



longer ; follicles cylindrical 37. Ceropegia. 



Corolla rotate or bell-shaped, with a short, wide 

 tube. 

 Stems leafy, herbaceous or ligneous ; roots 

 mostly succulent. 

 Corona double, obviously in 2 rows. 



Outer corolla of five 2-fid 2-dentate or 2- 

 parted folioles ; inner of 5 simple, 

 oblong folioles ; corolla-lobes mostly 



long and narrow 38. DicniELiA. 



Outer corolla bell-shaped, 10-toothed • 



round the margin ; inner of 5 subulate 

 folioles ; corolla-lobes ovate, short . 39. Decaceras. 

 Corona in 1 row, of 5 pieces or lobes. 



Corolla-lobes linear, reflexed. Corona-fo- 



lioli's af'uininato,attenuate,eared at base tO. Macropetalum. 

 Corolla widely bell-shaped. Corona-fo- 

 lioles shortly 3-lobed, the medial lobe 

 longer , . 41. BRAcnrsTELMA. 



