Fsychotria.'] 



LXX. RUBIACE^ (hIERN). 



195 



Calyx glabrous. 



Leaves chartaceous, 1-3 in. long 



Leaves thickly coriaceous, 3-5 in. long . . . 



Calyx-teeth ciliate 



Leaves acuminate or acute. 



Leaves 1-1^ in. long 



Leaves 2-7 in. long, 



Calyx-limb very short, truncate 



Calyx-limb 5-dentate. 



Flowers 2-3 together 



Flowers several together in little clusters . 

 Inflorescence corymbose ; common peduncle short ; 



flowers ^-| in. long 



Corolla-lobes keeled and crested at the back 



22. P. punctata. 



23. P. obtusifoUa. 



24. P. zambesiana. 



25. P. Kolly. 



26. P. Benthamiana. 



27. P. owariensis. 



28. P. Brassii. 



29. P. Afzelii. 



30. P. cristata. 



III. CONFEBTIFLORaE. 



Stipules undivided, entire. 



Calyx-limb short. Branchlets abruptly narrower 



than the branches of the previous season . . 31. P. abrupia. 

 Calyx-limb larger than the ovary. Branchlets not 



abrupt 32. P. anetoclada. 



Stipules bifid bicuspidate or bipartite. 



Leaves not punctate. Calyx shortly toothed or cleft 

 or entire. 



Pubescent 33. P. Kirkii. 



Glabrous or subglabrous. 



Caljrx subentire. Stipules bipartite, recurving . 34. P. recurva. 

 Calyx-limb cleft. Stipules not recurving. 



Leaves acuminate. Stipules bidentate . . 35. P. subobliqua. 

 Leaves not acuminate. Stipules cleft, bicus- 

 pidate 36. P.pumila. 



Leaves black-punctate. Calyx deeply lobed ... 37. P. nigropunctata. 



IV. Beacteat^. 



Silky-pubescent. Calyx-limb unequally 5-partite . . . 38. P. bracteosa. 

 Glabrous or puberulous. Calyx-limb subentire or equally 

 cleft. 

 Flower-heads solitary, sessile or subsessile. 



Stipules tricuspidate, rather large, § in. long ... 39. P. globosa. 

 Stipules bidentate or undivided, small, ^-\ in. long. 

 Style included or shortly exserted. 



Corolla-throat densely bearded. Style shortly 



exserted, shortly lobed 40. P. insidens. 



Corolla-throat thinly pubescent. Style included, 

 shortly lobed. 

 Calyx as long as the ovary. Corolla sub- 

 cylindrical 41. P. subherbacea. 



Calyx shorter than the ovary. Corolla funnel- 

 shaped . •. 42, P. infundibularis. 



Corolla-throat nearly naked. Style scarcely 



lobed 43. P. suhnuda. 



Style much exserted 44. P. longistylis. 



Flower-heads or flowers paniculate, pedunculate. 



Heads few, compact. Calyx-teeth ciliate . . . , 45. P. bidentata. 

 Flowers in numerous small clusters or divaricately 

 paniculate. Calyx-teeth ciliolate or glabrate. 

 Calyx-limb longer than the ovary or as long as it. 

 Leaves coriaceous 46. P. Vogeliana. 



