HannoaJ] xxxiv. siMARUBE.r. (oliver). 



.■i09 



segments. Petals 5, oblong or elliptic-lanceolate, pubescent, with imbricate 

 margins. Stamens 10; filaments filiform with a narrow, adnatc, pilose 

 scale on the inner face. Rudiments of the carpels immersed in a' rai»ed, 

 sulcate, glabrous, central disk. Female fl. : " Carpels 5-6. Styles, connate! 

 Drupes 1-6," oblong, indehiscent, with a woody or bony endocarp, 1-seeded. 

 Seed conformable. Cotyledons fleshy, plano-convex, with a minute radicle. 

 —A small glabrous tree. Leaves 'alternate, unequally pinnate ; leaflets 

 coriaceous, opposite or alternate, often on long petiolules. Flowers small, 

 white, fragrant, in terminal alternately branched panicles. 



A genus of one, or perhaps two, species, pecuhar to W. tropicil Africa. I havf onlv 

 seen male flowers and fruit. 



1. H. undulata, Planch, in Lond. Journ. Bot. v. 566. Leaflets very 

 coriaceous, obovate- or elliptic-oblong, retuse minutely apiculate or obtuse, 

 subentire, narrowed or cuneate at the base, venation obscure, 2-4 in. long, 

 1-2 in. broad or occasionally larger. Petiolules 1 in. or less; common pe- 

 tiole about 6 in. Panicles equalling or shorter .than the leaves. Drupes J-1 

 in. long, \ in. diam. — Slmaba? undulata, Guill. et Perr. Fl. Senc"- i. 136. 

 t. 34. 



Upper Guinea. (Petiolules near 1 in.) Senegambia ! Niger, Barter ! (petiolules 

 about \ in.) Mouth of the Niger, Mann ! 



iixcepting the length of the petiolules, I see no noteworthy character separating tbe»c 

 two forms, which are referred to as distinct species in the ' Genera Plantarum.' 



2. BBUCEA, Mill. ; Benth. et Hook. f. Gen. PI. i. 3U. 



Flowers polygamous. Calyx 4- rarely 3-partite. Petals 4, rarely 3, ellip- 

 tical. Stamens usually 4, outside the disk, in the female flowers efl"ete or 

 smaller ; filaments naked ; anthers rotundate, unappendaged. Female fl. : 

 Carpels 4, cohering at the top of the ovaries, each with a spreading or re- 

 curved style. Ovules solitary, attached above the middle. Drupes 4 or 

 fewer, ovoid, with a thin, scarcely fleshy pericarp. Seed conformable to the 

 pericarp, exalbuminous, the cotyledons fleshy, plano-convex, sometimes co- 

 hering. — Trees. Leaves alternate, imparipinnate, exstipulate. Flowers 

 spicate or in elongate narrow panicles, very small. 



A small genus of tropical and subtropical regions of the OKI World. The following 

 species are confined to Africa. 



Leaves more or less pubescent, 8-20 in. ; leaflets 2-4 in. <J fl. 



in interrupted spikes 1. B. antidysenterica. 



Leaves 3 ft., soon glabrous ; leaflets ample, 6-8 in. ? fl. in elon- 

 gate panicles 2. B. macrophylla. 



1. B. antidysenterica. Mill.; DC. Prod. ii. 88. A small tree, 

 reaching sometimes 15-20 ft. Extremities pubescent or tomentose. I>caves 

 8-20 in. long ; leaflets opposite or subopposite, ovate ovate-lanceolate to 

 lanceolate, occasionally broadly oblong, acute or very shortly acuminate, entire 

 or undulate-toothed, softly pubescent on both surfaces, at first, at length more 

 or less glabrescent at least above, older leaves often coriaceous, 2-4 in. long, 

 f-1^ in. broad. Petiolules 1-3 lines. Male flowers in interrupted, clou- 



