Flabellaria] xxvii. malpighiace^. 105 



GoLUNGO Alto. — A robust arborescent shrub, attaining the height 

 of 40 to 50 ft., often climbing ; trunk straight or twining, 4 in. or more 

 in diam. at the base, unbranched below, tortuously branched above ; 

 branchlets nodose and verrucose. Leaves dryly coriaceous, pale green 

 but little shining above, beneath clothed with a silky tomentum shining 

 like silver ; petioles of the younger leaves furnished with two rows of 

 tumid glands. Flowering specimens rarely met with. Wood poly- 

 centric, variegated with yellow and brown. In dense primitive w^oods 

 of Sob. de Mussengue, along streams, near Quibanga, not common, 

 fl. 16 Dec. 1855. No. 1040. Quiquele-quele, without flowers, August 

 1856. No. 5401. 



XXVIII. ZYGOPHYLLEiE. 



Along the whole coast of Angola from the Congo to the Cuanza 

 no species of Zi/gophyUimi occurs, but around Benguella Z. sim2:>lex 

 becomes extremely frequent and extends to Cabo Negro in multi- 

 farious forms ; about Loancla Trihulits terrestris L. is frequent and 

 takes the place of the former ; about Mossamedes an annual her- 

 baceous prostrate form, not unlike a small -leaved Portulaca, occurs. 

 Tribulus terrestris L. is frequent along the w^hole coast, but soon 

 ceases to occur towards the interior of the country ; Welwitsch 

 found none either in Golungo Alto or Huilla ; the varieties are 

 exceedingly pretty in summer in consequence of the quantity of 

 their flowers which are of a sulphur or golden colour ; but they 

 are at the same time extremely troublesome to the bare-footed 

 negroes on account of their sharp prickly fruits ; all the varieties 

 are known by but one name in Angola. 



1. TRIBULUS L. ; Benth. & Hook. f. Gen. PI. i. p. 264. 



1. T. terrestris L. Sp. PI. edit. 1, p. 387 (1753); Oliv. Fl. Trop. 

 Afr. i. p. 283. 



T. cistoides L., I.e. ; Welw. Apont. p. 591, n. 99, and in Journ. 

 Linn. Soc. v. p. 184 (1861); T. micans Welw. Apont. p. 566, 

 under n. 159. 



Barro do Bexgo. — In damp sandy places, drying up at the time of 

 collection, by the river Bengo, near Cacuaco, fl. and fr. at the end of 

 March 1854. No. 1575- 



LOANDA. — Frequent in damp and in dry fields also by road-sides, 

 near Quicuxe, fl. and fr. April 1854. No. 1576. Very common and 

 variable, in hilly grassy sandy-earthy places near Loanda, Alto das 

 Cruzes, etc., Jan. and Feb. 1868 ; also in the city of Loanda June 1859. 

 No. 1577. A prostrate-ascending undershrub, with several brittle stems. 

 Sporadic in dry rocky places between Boa Vista and Cacuaco, fl. and fr. 

 March 1854. No. 1578. An erect or ascending shrubby herb, 2 to 3 

 ft. high ; branches long, spreading, sulcate-striate ; leaves 8 to 10 — 

 usually 9 — jugate, silky-shining beneath ; leaflets oblong-lanceolate, 

 acuminate ; petals bright yellow, 1 in. long, 4 or 5 times as long as the 

 calyx ; carpels 5, with 2 or 4 spines in the middle, hispid, 3 or 2-seeded ; 

 style much shorter than the pyramidal stigma or nearly obsolete. 

 Abundant in dry sandy situations, along the shore of the island Cazenga, 

 between the city and the mouth of the river Cuanza ; fl. and f r. March 

 1858. No. 1579 and Coll Carp. 299. 



Mossamedes. — Not common, in sandy grassy places at the banks of 



