Gratef>'ispermt(,rn\ lxix. rubiacejE. 485 



34. CRATERISPERMUM Benth. ; Benth. & Hook. f. Gen. 

 PI. ii. p. 112. 



1. C. lauriniun Benth. in Hook. Niger Fl. p. 411 (1849); 

 Hiern in Oliv. Fl. Trop. Afr. iii. p. 160. 



GOLUNGO Alto. — A bush, 12 to 15 ft. high ; trunk 2 to 3 in. in 

 diameter at the base ; branches rather erect ; young fruit drupaceous, 

 green. In the more elevated forests of Sobato de Quilombo ; unripe 

 fr. midddle of July 1856. No. 3116. 



PuNGO Andongo. — An arborescent shrub, 5 to 8 ft. high ; branches 

 elongated, as well as the branchlets somewhat drooping ; leaves 

 coriaceous ; stipules very broad, almost connate and truncate without 

 a mucro, or sometimes rounded-obtuse and mucronate ; inflorescence 

 like that of Tricahjsia ; flower-buds green- whitish ; fruit crowned 

 with the cup-shaped calyx-limb, minutely warted outside. In the 

 small damp woods among the more elevated rocks within the prsesidium, 

 sporadic ; fl. and fl.-bud beginning of Nov. 1856. No. 3115. 



2. C. montanum Hiern, I.e., p. 162. 



Island of St. Thomas. — Iieaves yellowish-green. Mucumbrara ; 

 fl.-bud Dec. 1860. No. 3158. 



35. PAVETTA L. ; Benth. & Hook. f. Gen. PI. ii. p. 114. 



1. P. angolensis Hiern, sp. n. 



A shrub, 2 to 5 ft. high, sometimes shaped like a miniature 

 ti-ee with spreading or deflexed-ascending branches, in other cases 

 with twisted branches as if scandent, evergreen, glabrous or very 

 nearly so ; branchlets quadrangular, whitish, but towards the 

 extremities gi-een, somewhat compressed and leafy ; leaves opposite, 

 obovate- elliptical, cuspidate or acuminate at the apex, wedge- 

 shaped and often unequal at the base, thinly coriaceous, the 

 blade 3 to 5 in. long by 1 to 2 in. broad, rather glossy, turning 

 livid in the dried state ; lateral veins 7 to 9 on each side of the 

 midrib, starting at about 60°, slender, not conspicuous ; petioles 

 ranging up to ^ in. long; stipules widely sheathing, almost 

 refuse, the midrib keeled, projecting in a long mucro ; flowers 

 tetramerous, rather fleshy, snow-white, fragrant, very handsome ; 

 |- to 1 in. long when expanded, exclusive of the midrib, subsessile, 

 many together arranged in globular sessile terminal condensed 

 capitate cymes ; calyx ovoid, the limb deeply quadrifid ; the 

 segments elongated-subulate, erect in the flower, i in. long or 

 rather longer, persistent ; corolla glabrous, salver-shaped ; tube 

 slender, elongated, § to f in. long ; limb deeply 4-cleft ; segments 

 oblong-lanceolate, \ to ^ in. long, shortly hooded-mucronulate at 

 the tip, reflexed-spreading in full flower ; stamens 4, alternating 

 with the corolla-lobes, inserted on its throat, exserted ; filaments 

 filiform, much shorter than the anthers ; anthers linear, 2 -celled, 

 dehiscing longitudinally, soon turning black, about \ in. long ; 

 disk thick, elevated, sub-tubnlar ; ovary included in and adnata 

 to the calyx-tube, 2 - celled ; cells 1-ovuled; style cylindrical, very- 

 much elongated, 2i in. long, white, exceeding the corolla-tube by 

 about Ii in., gradually terminating in the long-clavate stigma. 



