366 xli. celastrace^ (oliver). [Cautpylostemon. 



spreading. Stamens 5, inserted in a minute inconspicuous disk around llie 

 ovary ; filaments incurved; anthers introrse, dehiscing transversely, 4-celIed. 

 Ovary broad-based, free, 3-celled ; stigma 3-fid, sessile ; ovules 6-8 in each 

 cell, 2-seriate. Fruit not seen.— A glabrous climbing shrub. Leaves oppo- 

 site, membranous, elliptic-oblong, acuminate, serrulate. Flowers small, 

 sulphur-yellow, in axillary cymes much shorter than the leaves. 



A monotvpic genus, confined to Angola. 



1. C. angolense, Welw.; Oliv. in Journ. Linn. Soc.x. 44. Leaves 2- 

 3£ in. long, f— 1£ broad, usually elliptic-oblong or oval, occasionally ovate- 

 lanceolate; petiole slender, \ in. Cymes many-flowered, under 1 "i. 

 Flowers about 2£ lines in diam. 



Lower Guinea. Prov. Cazengo, Angola, Dr. Welwitsch ! 



5. HIPPOCRATEA, Linn. ; Benth. et Hook. f. Gen. PI. i. 369. 



Flowers hermaphrodite. Sepals 5. Petals 5, exceeding the sepals, erect 

 or spreading, imbricate or valvate. Stamens 3 ; filaments recurved or re- 

 flexed at the tip, usually dilated around the ovary below or concealed in- 

 lateral notches of the ovary. Anthers various, from quadrate to transversely 

 elongate-oblong, extrorse, rarely subsessile. Ovary surrounded by or raised 

 upon a disk, 3-celled ; style very short or subulate or ; stigma terminal 6- 

 lobulate or subentire, or stigmatic lobes 3, under the margin of the ovary; 

 ovules 2-10 in each cell, 2-seriate. Fruit-carpels 3, distinct, flat, rarely nearly 

 cylindrical, coriaceous, usually dehiscing along the median line. Seed com- 

 pressed, usually dilated into a broad wing below, " exalbuminous ; cotyledons 

 flat, connate ; radicle very short, inferior." — Usually climbing shrubs or trees. 

 Leaves opposite, entire or serrate. Flowers in axillary cymes or more rarely 

 terminal cymose panicles, usually small. 



A large tropical genus, occurring in both hemispheres. At least two of the African species 

 are common to tropical Asia. 



Ovules 2 in each cell of the ovary. 



Anthers nearly concealed under lateral stigmatic notches in the 



side of the broadly convex apex of the ovary 1. H. pal I ens. 



Anthers conspicuous. Stigma terminal. 



Outer sepals distinctly smaller. Peduncles solitary, axillary, 



elongate; pedicels in an umbelliform cyme %. ff.? longipes. 



Sepals equal or nearly so. 



Ovary raised above the broad disk on a distinct stipes as long 



as itself : .... S. IT. Welicitschii- 



Ovary sessile or nearly so. 



Sepals and petals rotundate. Disk cupuliform. Leaves 



small (1-2 in.) 4. Jf. parvi/olia- 



Petals lanceolate or oblong, sides usually infolded ... 5. if. indica. 

 Ovules 4-8. 



Petals valvate in aestivation. 



Cymes and young shoots rusty-tomentose. Petals 1—24 lines. 



Ovary sessile 6. ff. apocynoides. 



Eitremities glabrous. Cymes puberulous. Petals i in. Ovary 



on short thick gynophore 7. ff. apiculata. 



