Hippoa-atea.] xll celastrace.e (olivek). 367 



Glabrous. Flowers hoary, minute (1 line or less), in large ter- 

 minal panicles . . .' 8. H. myriantha. 



Petals slightly (not broadly) imbricate, lanceolate or ovate-lanceo- 

 late. 

 Wholly glabrous or cymes puberulous. Petals 2^-3 lines. 



Leaves l|-4 in. 9. H. obtusifolia. 



Shoots rusty-pubescent. Ovary hairy. Petals 1$ lines. Leaves 



Hi ill. 10. H.Kirkii. 



PetaU much imbricate, broadly elliptical obovate or orbicular. 

 Petals fimbriate, unguiculate. Branches and inflorescence 



rnsty-tomentose 11. H. velutina. 



Petals entire. 

 Petals J in., obovate, with much incurved sides. (Cymes 



very lax, 5-6 in.) 12. R. macrophylla. 



Petals 1 Hue or less. 

 Pedicels \ in. Leaves elliptical, 2-4 in. (drying black) . 13. R. graciliflora. 

 Pedicels about 1 line. 



Leaves 3-7 in., elliptical, rounded below 14. H. paniculata. 



Leaves elliptic-lanceolate, li-2 in.; petiole |-£ in. 



Filaments linear 15. H. andongemit. 



Leaves elliptic-lanceolate, 1-3 in.; petiole \-\ in. 



Filaments very short, much dilated 16. R. longipetiolata. 



}■ H. pallens, Planch, mxs. in Herb. Kew. Wholly glabrous. Leaves 

 "'inly coriaceous, elliptical to oblong-elliptical, shortly and obtusely pointed 

 ■ acuminate, cuneate, sometimes broadly, at the base, entire or obscurely 

 ^milate towards the apex, reticulation obscure, l£-4 in. long, \-%\ in. 

 "road ; petiole \-\ in. Flowers small, in axillary, many-flowered, shortly 

 Pedunculate, forking, sometimes rather dense and rounded cymes, much 

 porter than the leaves (f-1 j in.). Sepals minute, ovate or obovate-oblong, 

 ln ! u ncate in aestivation. Anthers almost concealed in lateral notches under 

 jjinute st igmatic prominences on the margin of the broadly convex top of 



e wary. Ovules geminate. Fruit not seen. 



Pper Guinea. Sierra Leone, Barter ! Bagroo river, Mann ! 

 *«ower Guinea. Cazengo, Angola, Dr. Welwitsch ! 

 small-leaved variety is in the Kew herbarium from Senegambia. 



2 - H.? longipes, Oliv. Wholly glabrous. Leaves subsessile, firmly 

 embranous, oblong-elliptical or elongate-oval, obtusely often narrowly acu- 

 ln ate, narrowed to the base where the margins slightly fold and almost meet 



an?! ^ Se of the midrib > obsoletely or undulate-serrulate or entire, midrib 



loir i, pl "& literal somewhat transverse veins prominent above; 5-8 in. 



tar? i * in ' broa(l '' P etiole 1_2 lines or less - Peduncles axillary, soh- 



urnh nT der ' aud ^branched to 2-4 in., then cymosely dividing into a sub* 

 "oelliform head of very short scaly peduncles of 1-2 lines, from which 



Pen i slender pedicels of £-| in. Sepals rotundate, the outer smaller. 

 «-la broadly elliptical or rotundate, broadly imbricate in bud. Filaments 



2?* b *»«en the broad fleshy disk and conical free ovary. Ovules in 



pairs - Fruit not seen. 



PPer Guinea. Sierra d. Crystal, Mann ! 



3 - H. Welwitschii, Oliv. A strong and extensive climber, wholly 



