CaJesia7n\ xlii. anacardiace^. 179 



woods and in bushy situations near streams ; fr. and -with young 

 foliage Dec. 1855. Bark officinal. iSTative name " Mucumbi." No. 4448. 

 A small tree ; in thickets near Sange ; fr. and foliage, but without fl., 

 June 1855. Native name " Pao Mucumbi." No. 4449. Near Sensala 

 Cangunho, with young foliage, 30 Sept., 1855. Native name "Pao 

 Mucumbi." No. 4451. 



The next following No. has immature foliage without flowers 

 or fruit, and also bears the native name " Pao Mucumbi " ; but it 

 differs from the rest by longer (16 in.) 5-6-jugate foliage and 

 leaflets ranging up to 7 in. long by 3| in. wide : — 



GoLUNGO Alto. — A small tree, 15 ft. high, resembling in habit a 

 species of Spondias ; wood white, tough, usually employed by the 

 negroes for the construction of their dwellings ; plants multiplied with 

 the greatest ease ; occurs everywhere by native villages, and in rather 

 moist forests ; Sange, July 1855. No. 4452. 



Mucumbi-bark is the product of a tree of moderate height, with the 

 habit of an ash-tree, a native of virgin forests in the hilly districts of 

 Angola ; this tree is also met with cultivated in the vicinity of the 

 villages of the natives, who employ a decoction of its bark as a remedy 

 for scorbutic ulcers of the mouth and other troubles caused by scurvy. 

 (See Welwitsch, Synopse, p. 30, n. 72.) 



A species of LorantJms, Welw. Herb. No. 4846, grows as a parasite 

 upon Mucumbi. 



4, C. Welwitschii Hiern, sp. n. 



A tree, 25 to 50 ft. high, with a broad leafy head ; trunk 

 straight, bare below, glabrous except the very young parts the 

 base of the petioles and the dioecious inflorescence ; branches 

 erect-patent, leafy at the apex ; leaves usually tri jugate and 

 impari-pinnate, occasionally pari-pinnate by abortion or bijugate, 

 12 to 20 in. long (including a petiole of 3 to 5 in.) ; leaflets ellip- 

 tical, narrowly and mostly abruptly sub-obtusely long-acuminate 

 at the apex, more or less narrowed at the base, rigidly mem- 

 branous, entire (or somewhat sinuous or undulate), glabrate, 

 obscurely herbaceous-green and without gloss above, paler and 

 rather glossy beneath, with 7 to 10 slender lateral veins on each 

 side of the midrib, the lateral leaflets 3 to 7:j in. long by 1^ to 

 2| in. broad on petiolule of ^ to ^ in. long, the terminal leaflet 

 4 to 6| in. long by 1| to 3| in. broad on petiolule of 1| to 2| in. 

 long. Male inflorescence more or less scattered with small stellate 

 or subsquamous deciduous ferruginous hairs, in the upper axils or 

 lateral near the apex of the branches, 8 to 11 in. long, branched 

 in a pyramidal manner ; peduncles and primary pedicels flat- 

 dilated, furrowed, yellowish ; ultimate pedicels thyrsoid, about as 

 long as the flowers ; flowers glabrate, yellowish, about —^ in. long ; 

 calyx small, 4-cleft half way dow^n _; lobes ovate, rounded ; petals 4, 

 ovate, obtuse, twice as long as the calyx, imbricate in aestivation, 

 alternate with the calyx-lobes, patently inflexed during full- 

 flowering ; stamens 8 (occasionally by abortion 6 or 7), inserted 

 with the petals at the outer base of the octagonal disk, opposite 

 to the 4 calyx-lobes and to the 4 petals, longer than the petals 

 (according to Welwitsch); filaments flattened at the base, and 



