IIiKjonia.'] XXVIII. line^ (oliveu). 271 



Upper Guinea. Sierra Leone, Afzellns ! 



Var. melanocaJifx (Welw.). Leaves usually more rouiidcJ at the ba^e. Outer w.-imIi 

 clothed with a dark silky tomentum. 



Lower Guinea. Puugo Audongo, Angola, Dr. Wehcitsch ! 



The geminate ovules are so closely applied side by side in eaih cell of the ovary aA to be 

 easily mistaken for a solitary ovule. 



3. H. macrophylla, Ollv. Leaves approximated or pseudo- verticil- 

 late towards the ends of the branches, elon^^ate, firmly membranous, 

 broadly oblaiiceolate or obovate-oblono^, cuspidate, narrowed to the short 

 hirsute petiole, glabrous or nearly so above ; midrib and prominent principal 

 veins hispid with spreading hairs beneath, 10-12 in. long, .3^ 4 in. broad, 

 liracts imbricating, palmatipartite, with rigid subulate hispid segments, per- 

 sistent. Flowers very shortly pedicellate, terminal in our specimen (fascicled 

 or racemose?). Sepals ovate or ovate-rotundate ; the inner larger. Petals 

 elongate-cuneate, with a very short thick claw ; 5-6 times longer than the 

 sepals. Staminal tube thin. Ovary glabrous below, densely pilose above ; 

 styles elongate, pilose. Ovules solitary, pendulous. 



Upper Guinea. Old Calabar, Thomson I 



I have seen but a solitary specimen with few flowers. 



4. H. foliosa, 0//;;. Branches hoary-tomentose at first. Leaves rather 

 coriaceous, elliptical or oblong-elliptical, rather abruptly acuminate, rounded 

 or broadly cuneate at the base, irregularly and broadly serrate, covered with 

 a tliick deciduous tomentum when young, at length glabrous on both sides ; 

 lateral veins ^-^ in. apart, connected by rather obscure transverse veinlets ; 

 about 6 in. long, 3-4 in. broad; petiole \ in. Stipules and bracts pinuati- 

 partite ; segtiients finely subulate. Flowers in few-flowered, sessile or sub- 

 sessile, axillary fascicles. Outer sepals ovate, obtuse, densely tomentose ex- 

 ternally ; inner obovate or obovate-rotundate, obtusely and shortly pointed, 

 the broadly covered coriaceous margins shining. Petals oblong-elliptical with 

 a very shoii claw almost concealed by the narrowly emarginate base of the 

 lamina. Staminal tube tliick, one-third the length of filaments. Ovary 

 glabrous ; ovules geminate. Fruit not seen. 



Upper Guinea. Bagroo river, Mann ! 



5. H. angolensis, TTelw. mss. A graceful climber. Branches tawny- 

 pubescent or puberulous, at length almost glabrous. Leaves lanceolate- or 

 ovate-oblong, acute, usually more or less rounded, often broadly, at the base, 

 serrulate or subentire, subglabrous or obsoletely puberulous and dull above 

 (or the midrib more distinctly puberulous), thinly pubescent or in the 

 younger leaves pubescent-tomentose beneath, 2^-4 in. long, 1-1} in. broad, 

 or in the barren shoots considerably larger. Petiole i in. or less. Stipules 

 early deciduous, pectinate, with 2 or 3 acicular segments on each side ; most 

 conspicuous at the unfolded extremities. Flowers in fascicles of 2 or 3 from 

 the axils of the upper leaves or somewhat shortly racemose nt the extremi- 

 ties ; common peduncles | in. or less. Outer sej)als ovate-lanceolate, sub- 

 acute, shortly tawny-tomentose, slightly exceeding the iniu^r, which are 

 more broadly ovate and obtuse. Petals very shortly and abruptly unguicu- 

 late. Fruit ovoid-globos*\ exceeding the persistent sepals. 



