Barter ia] xciv. acanthace^. 815 



shrublet ; flower azure-blue, Ih in. long. In a very dry rocky part of 

 Caldeira do inferno ; only one specimen with fr. and a single fl. June 

 1860. No. 5013. A rigid shrublet, 1 to 2 ft. high ; flowers bright 

 blue. At Caldeira do inferno ; fr. June 1860. Coll. Carp. 838. 



4. B. elegans S. Moore, I.e., p. 269 ; C. B. CI., I.e., p. 154. 

 B.picngens; var. macyi'ophylla Nees in DC Prodr. xi. p. 237 



(1847), fide S. Moore, I.e. ; non L. 



LoANDA. — An undershrub, 3 to 5 ft. high, subscandent among 

 shrubs, ornamental but injurious to them ; leaves in the living state 

 deep green, membranous ; corolla deep blue. By thickets in the 

 hilly parts of the district, very plentiful ; fl. May and June 1858. 

 No. 5187. In fl. and fr. No. 5068. A shrub, 3 to 4 ft. high ; 

 flowers very abundant ; calyx spiny-ciliate ; corolla beautifully blue. 

 At Zamba grande ; fr. August 1854. Coll. Carp. 120. 



Cazengo. — A rigid herb, 2 to 4 ft. high, woody at the base, some- 

 times ascending, sometimes erect, usually very much branched at the 

 base ; flowers of a pretty blue. In the denser thickets about the 

 Muxaulo chain of mountains, tolerably plentiful ; fl. June 1855. 

 No. 5114. 



Bumbo. — In the drier thickets among tall herbs between Bumbo and 

 Bruco ; fr. Oct. 1859. Nos. 5034, 5122. 



This is the Acanthacea mentioned by Welwitsch in Ann. Cons. 

 Ultramar. Lisb. No. 24 (May 1856), p. 250, n. 120. 



5. B. Carmthersiana S. Moore, Jx., p. 270 ; C. B. CI., I.e., p. 154. 

 Bumbo. — Flowers blue. In thickets at the outskirts of forests 



composed of Cojmiha Mo2m7ie 0. Kuntze (Welw. herb. no. 605), near 

 Quitibe de Cima ; fl. Oct. 1859. No. 5040. 



6. B. polyneura S. Moore, Ic, p. 266 ; C. B. CI., I.e., p. 157. 

 Huilla. — A perennial herb; rootstock woody; stems numerous, 



prostrate-ascending, puberulous ; leaves subsessile, ovate, rigidly 

 chartaceous, quite entire, bright green, the uppermost ones glaucescent ; 

 corolla white, the tube purplish. In sunny rocky forests between the 

 lake Ivantala and Quilengues ; fl. and young fr. 28 and 29 Febr. 1860. 

 No. 5029. 



7. B. violascens S. Moore, I.e., p. 265 ; C. B. CI., I.e., p. 158. 

 HuiLL.\. — A perennial herb, with the habit of an Ijwmma ; stems 



several, subangular, prostrate-ascending, rubicund, leafy ; leaves 

 glaucescent, erect, somewhat fleshy and rigid ; flowers solitary in the 

 axils of opposite leaves, shortly pedicellate, H in. long ; calyx 

 4-bracteolate at the base, diphyllous, the segments elongated ovate- 

 lanceolate and acute ; the two lower bracteoles linear, the two upper 

 ones broadly ovate ; corolla hypogynous, funnel-shaped or cylindrical- 

 tubular, milk-white ; the tube bright violet-purple both outside and 

 inside ; the limb deeply 5.cleft ; the lobes obtuse, subequal ; stamens 4, 

 inserted a little above the base of the corolla tube, 2 of them quite 

 rudimentary and without filaments, the filaments of the other 2 

 ascending, naked ; anthers oblong, 2-celled, quite naked, violet in 

 colour ; the cells somewhat diverging at the base, dehiscing longi- 

 tudinally, both exactly equal ; disk cupuliform, repand ; ovary 2-celled; 

 ovules 2 in each cell ; style simple, whitish ; stigma unequally 

 bilabiate, scarcely perforated, pale violet in colour, reflected at the 

 early flowering ; capsule globose-compressed at the base, 2-celled. 

 narrowed towards the apex into a conical beak ; seeds 2. In elevated 



