970 cxv. EUPHORBiACE^. [Croton 



villages, plentiful, after the manner of elms in Europe, thriving well 

 in Sobato de Bumba ; fl. and young fr. 22 Oct. 1855. No. 348. A 

 tree of moderate size, with discolorous leaves and racemose monojcious 

 flowers. At the outskirts of forests near Sange, fr. ; also frequently- 

 cultivated. Coi.L. Carp. 930. 



This tree is a frequent ornament of the hilly borders of forests on 

 the interior plateau of Angola, particularly in the districts of Golungo 

 Alto, Ambaca, and Pungo Andongo ; it varies, according to the nat-.ire 

 and humidity of the soil, etc., in the breadth and even in the silky 

 lining of its leaves ; the younger plants and the shoots from the 

 stumps of old trees always have broader leaves, and the stipules are 

 more luxuriant ; the largest leaves fall off at the time of flowering. 

 The negroes of Golungo Alto call the tree "Mubango " ; and the root, 

 as well as the brown gum which exudes from the trunk, is used by 

 the native medical men as a drastic purgative, in the form of a 

 decoction together with that of the root of Mundondo (cf. Chloroaidnn 

 Whiteii Hook. f. and Tylojjhora co)iq)icua N. E. Br.). A decoction 

 of the rind of the root, mixed with the leaves or stems of Mo biro 

 (cf. Adeuia lobata Engl.), is an excellent anthelmintic remedy. (See 

 Welw. Synopse Explic. p. 32, n. 78, p. 37, n. 99, p. 56, sub n. 146). 

 The dose as a purge is a teaspoonful of tlae Mubango powder for an 

 adult person. The wood is white and firm, but easily cracks ; when 

 in flower the tree is much frequented by bees ; the fruit is tricoccous 

 and nearly the size and colour of a medlar. Welwitsch very highly 

 recommended this tree for planting at Loanda on account of the 

 excellent shade which it affords and because it thrives well in a 

 parched nearly rainless climate and not less so in a rich soil ; it 

 remains to be proved whether it dislikes the seaside. 



In Loanda the name " Mubanga " or " Mubango " is used for a 

 very different tree, namely. Acacia WehvifftcJill Oliv. ; Welw. herb, 

 no. 1806. According to Welwitsch's ms. the Euphorbiaceous Mubango 

 is a common tree in the district of Pungo Andongo. 



2. C. Welwitschianus Muell. arg. in Journ. Bot., I.e., p. 338, 

 and in DC, I.e., p. 515. 



HuiLLA. — A small tree ; head fastigiate ; branches and branchlets 

 verticillate ; leaves very bright green above. In rather dense forest 

 near Lopollo, where the Munanos' camp was erected, in company with 

 species of Mimoseae (cf. Gigalobium abyssai/cwn ; Welw. herb. no. 

 1782i), Tarchonanthus camj)Jwr((tus L. (Welw. herb. no. 3524), and 

 Proteacese ; scarcely in good fl. beginning of April 1860. No. 341. 



3. C. Draconopsis Muell. arg. in Journ. Bot., I.e., p. 338, and 

 in DC, I.e., p. 522. 



Ambriz. — A small tree ; branches elongated, rambling, leafy at the 

 apex. In damp forests near Ambriz, in company with Fla/jclhiria 

 guineens/s Schum. (Welw. herb. no. 3009) ; fl. Nov. 1853. No. 343. 



Cazexgo. — A tree of 20 ft. high (at the time of gathering a young 

 one) ; branches patent ; branchlets and flowering spikes erect. In 

 the more elevated primitive forests in Serra de Muxaula, rather rare ; 

 fl. Dec. 1854. No. 347. 



GoLUNco Alto. — A tree, 6 to 8 in. in diameter at the base of the 

 trunk, the sole remains of the burnt tree ; branches springing round 

 the trunk crowded, erect, hispid with hairs directed backwards ; bark 

 grey, as are also the petioles of the leaves. On the left bank of the 

 river Cuango, at the outskirts of palm groves, among maize crops ; 

 without fl. or fr. end of Aug. 1855. Collected also in the same place 



