3G4 Liv. MELASTOMACE^. [Osbeckia 



p. 745 (1867). and in Oliv. Fl. Trop. Afr. ii. p. 444; Triana in 

 Trans. Linn. Soc. xxviii. p. 57, t. iv. f. 43 (1871). 



PuNGO Andongo.— An annual, erect, little herb, 3 to 4 (9) in. high, 

 usually branched from the base ; leaves membranous ; flowers tetra- 

 merous, rosy ; anthers emitting pollen at the small apex. On the 

 more elevated exposed moist shortly-grassy declivities amongst the 

 gigantic rocks of the fortress in Pedra Cazella ; fl. and young fi*. April 

 1857, ripe fr. May 1857. No. 909. Annual, 3 to 5 in. high ; by the 

 lofty rocks of the fortress ; fr. May 1857. Coll. Carp. 570. 



HuiLLA. — A slender, erect, gregarious, little herb, hispidulous or 

 occasionally pubescent, sparingly branched, a digit high or shorter : 

 flowers in terminal clusters, of a pretty rosy colour, fugacious ; petals 

 4 ; stamens 8, all alike ; anthers truncate, pot-shaped (ceramiiform), 

 and by this character distinguished from all other Angolan 

 Melastomace^. In rocky situations along streams near Empalanca on 

 the Humpata plain, at an elevation from 5200 to 5300 ft. ; fl. and fr. 

 beginning of April 1860. Along the grassy margins of streams and 

 near the bottom of the rocks throughout the Humpata plain, at an 

 elevation from 5000 to 5400 ft., very abundant ; fl. and fr. 13 April 

 1860. No. 920. 



2. 0. Welwitschii Cogniaux in DC. Monogr. Phan. vii. p. 333. 

 PuNGO Andongo. — A sarmentose or subscandent undershrub, Avith 



rose-purple flowers. By the Canandua river, within the fortress ; fl. 

 and fr. Jan. 1857. No. 907. A shrub. In bushy places by the river 

 Cuanza near Sansamanda, sporadic ; fl. and fr. Feb. 1857. No. 907&. 

 Ambaca. — A herb, apparently annual or biennial, 2 to 4 ft. high, 

 quasi-scandent among shrubs, with rambling branches and rosy flowers. 

 In mountainous swamps near Puri-Cacarambola ; fl. Oct. 1856. No. 908. 



3. 0. hirsuta Cogniaux in DC. Monogr. Phan. vii. p. 334 (1891). 

 PuNGO Andongo. — An erect, rather rigid, strigulose herb, IJ ft. 



high, with purplish flowers. In exposed pastures among short bushes 

 at the margins of pools, between Condoand Quisonde and near Lombe, 

 very rare ; fl. and fr. March 1857. No. 905. 



4. 0. multiflora Sm. in Rees, Cyclop, xxv. n. 7 (1813) ; Hook, 

 f. in Oliv. Fl. Trop. Afr. ii. p. 442 ; Cogniaux, I.e., p. 332 (1891). 



Dissotis multiflora Triana in Trans. Linn. Soc. xxviii. p. 58 (1871). 



GoLUNGO Alto. — An elegant erect herb, 2 to 3A ft. high, with 

 handsome violet-purple flowers. In the mountainous rather shaded 

 parts of the more elevated forests of Sobato de Quilombo- 

 Quiacatubia, from 2000 to 2500 ft. alt., on moist clay, very rare ; fl. 

 and fr. Feb. 1855. No. 898. 



2. TRISTEMMA Juss. ; Benth. & Hook. f. Gen. PL i. p. 746. 



1. T. incompletum Br. in Tuckey, Congo (App.), p. 435 (1818). 



Melastoma sessills Schum. Beskr. Guin. Plant in Danske Vid. 

 Selsk. Naturv. iii. p. 239 (1828). T. Schumacheri Guillem. & 

 Perrott. Fl. Senegamb. p. 311 (1833) ; Hook. f. in Oliv. Fl. Trop. 

 Afr. ii. p. 446 ; Cogniaux in DC. Monogr. Phan. vxi. p. 361 (1891). 



Var. grandifolium (Cogn., I.e.). 



GoLUNGO Alto. — An undershrub, woody at the base ; stem ascend- 

 ing, obtusely quadrangular ; calyx obovoid, 5-toothed ; the teeth erect, 



