322 XLV. ROSACEA. [Acioa 



spirally twisted together with the style, inserted on the throat of the 

 calyx, at the dorsal side of the base of the style, represented on the 

 other (opposite) side only by a little-elevated disk crenate-dentate at 

 the margin ; filaments about 20 to 25, all fertile, more than an inch 

 long, connate high up into a semicylinder which includes the style after 

 the manner of Leguminosse, almost resembling in this respect the flowers 

 of A Ihizz'ia ; anthers nearly orbicular, emarginate at both ends, dorsi- 

 fixed in the middle, 2-celled ; cells reniform green. Between the ovary 

 and stamens is a beard of straight hairs ; disk also pilose with depressed 

 hairs declinate towards the ovary ; style lateral, not basal. Sporadic, 

 in the dense primitive forests of Serra de Queta Central (Zengas), very 

 rarely in secondary woods : fl. 23 Sept. 1856 and again at the end of 

 July 1857 ; in flower-bud July 1856. No. 1289. In the primitive 

 forests of the slopes of the mountains of Queta, very rare ; in young f r. 

 end of Nov. 1855. No. 1289/;. 



4. PYGEUM Gaertn. ; Benth. & Hook. f. Gen. PI. i. p. 610. 



1. P. africanum Hook. f. in Journ. Linn. See. vii. p. 191 (1864) ; 

 Oliv. Fl. Trop. Afr. ii. p. 373. 



PUNGO Andongo.— A lofty tree, 50 to 80 ft. high ; branches rambling ; 

 crown dilated upwards ; leaves coriaceous, shining, pellucidly veined, 

 glandular at the serratures. The leaves as well as the fruits abound 

 in prussic acid, and the kernels are similar in taste to those of bitter 

 almonds only richer in substance ; a decoction of the leaves mixed 

 with milk furnishes an excellent substitute for almond-milk. Fruits 

 obcordate-bilobed, 1-seeded. Sporadic, in the moist sandy forests 

 between Luxillo and the fortress of Pungo Andongo ; in young fr. 

 May 1857. No. 465. 



5. RUBTJS L. ; Benth. & Hook. f. Gen. PI. i. p. 616. 



1. R. pinnatus Willd. Sp. PI. ii. p. 1081 (1799); Oliv. Fl. Trop. 

 Afr. ii. p. 374; Ficalho, PI. Uteis, p. 179 (1884). 



R. apetalus Welw. Apont. p. 571 ; Hook. f. in Journ. Linn. 

 Soc. vi. p. 9 (var.) (1861), vii. p. 191 (1864); vix Poir. 



GoLUNGO Alto. — A shrub, highly sarmentose, widely climbing, 

 always and constantly apetalous ; stems numerous ; calyx-segments 

 ovate, tomentose, subulate-acuminate at the apex. Carpels obliquely 

 ovoid-conical ; style sublateral, cylindrical, truncate at the apex ; recep- 

 tacle sub-hemispherical. Not in small quantity (but seen in one station 

 only) in the ascent of the mountains of Sobato Quilombo Quiacatubia ; 

 in fl. and young fr. Feb. 1855. Native name " Musuno." No. 1280. 



An infusion or slight decoction of this plant is employed by the 

 negroes as an efficacious gargle in cases of quinsy. I have followed 

 Professor Oliver in the determination of this plant ; the species is 

 united with Ruhus roscefolius, Sm. PI. Ic. Ined. iii. t. 60 (1791), by Sir 

 J. D. Hooker in his Flora of British India, vol. ii. p. 341 (1878). 



2. R. huillensis Welw. ex Oliv. Fl. Trop. Afr. ii. p. 375. 

 R. rigidus Oliv., I.e., p. 375, vix Sm. 



A shrub, 3 to 6 ft. high, with numerous long trailing stems ; 

 branches elongated, subterete and thinly pubescent below, obtusely 

 angular and with whitish-grey felt and small sessile glands towards 

 the extremities ; prickles decurved or hooked, from a rather long 

 base subulate, of a pale-chestnut colour, thinly pubescent on the 

 lower part, glabrous in the upper part, -^^ to i in. long ; stipules 



