970 cxv. EUPHOKBiACE^. \Groton 



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 moncBcious 

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

 cultivated. Coll. Cakp. 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 nature 

 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 ofE at the time of flowering. 

 The negroes of G-olungo Alto call the tree "Mub&ngo " ; 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 (of. Chlorocodon 

 Whiteii Hook. f. and Tylophora conspicua N. E. Br.). A decoction 

 of the rind of the root, mixed with the leaves or stems of Mobiro 

 (cf . Adenia lohata Engl.), is an excellent anthelmintic remedy. (See 

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

 The dose as a purge is a teaspoonf ul of the Mubango powder for an 

 adult person. The wood is white and firm, but easily cra<;ks ; when 

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

 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 aSords 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 difEerent tree, namely. Acacia Welwitschii Oliv. ; Welw. herb, 

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

 is a common tree in the district of Pungo Andongo. 



2. C. Wel-witsohianus Muell. arg. in Journ. Bet., I.e., p. 338, 

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



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

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

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

 species of Mimoseae (cf. Gigalobium abyssinicum ; Welw. herb. no. 

 17826), Tarchmianthus eamphoratus 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 Flagellaria 

 guineensis Sebum. (Welw. herb. no. 3009) ; fl. Nov. 1853. No. 343. 



Cazengo. — 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 Muxaftla, rather rare ; 

 fl. Dec. 1854. No. 347. 



Golungo 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 ; barjc 

 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 



