244 XLiV. leguminosjE. 



erect, 7 to 14 in. high, obtusely angular, of a pale colour, sparingly- 

 pilose or glabrate; leaves unifoliolate, erect or ascending, oval- 

 oblong, obtuse and shortly apiculate at the apex, rounded or very 

 slightly cordate at the base, 2 to 4 in. long by f to f in. wide, 

 margins narrowly revolute, glabrescent, or often the midrib 

 appressedly pilose beneath ; petiole \ to £ in. long, broadly winged 

 in an obovate manner with stipelliform subulate or needle-shaped 

 stipels at the apex ; stipules lanceolate striate rigid \ to \ in. long, 

 reddish-brown in the dry state ; flowers axillary and sub-terminal, 

 solitary or a few together, about § to f in. long, pale purple, 

 handsome, in terminal somewhat leafy racemes ; pedicels \ to | in. 

 long, somewhat pubescent; bracts ovate-subulate, ciliate, \ in. 

 long, deciduous ; calyx campanulate, \ to \ in. long, somewhat 

 pubescent, widely bilabiate, the upper lip bidentate at the apex 

 with subulate teeth, the lower lip trifid rather longer than the 

 upper lip with ovate acuminate teeth ; corolla glabrous or nearly 

 so ; standard orbicular-obovate, wing-petals somewhat adhering to 

 the keel ; filament of the vexillary stamen free for half its length 

 from the staminal tube ; ovary shortly stipitate ; pod about 

 2-jointed, f to 1 in. long, pale tawny, shaggy-tomentose, about 

 2 -seeded ; stipes straight or curved, pale tawny, shaggy-tomentose, 

 1 in. long more or less. 



Huilla. — In thickets alongside forests in somewhat sandy places, 

 from Mumpulla towards Nene and Humpata, not scarce but local ; 

 fl. and fr. Oct. 1859. No. 2166. 



This species as well as the last is related to the East Indian species 

 M. triquetra O. K. of the section Pteroloma ; it occurs also at Caconda, 

 farther in the interior of Angola, having been collected there by 

 Anchieta, who gives for its local name " Xicucu." It is nearly related 

 also to M. Stuhlmannii (Desmodium Stuhlmannii Taub. in Engl. Pflanz. 

 Ost-Afrika, C. p. 217 (1895). 



26. PSEUDARTHRIA Wight & Arn. ; Benth. & Hook. f. Gen. 

 PI. i. p. 521. 



1. P.macrophylla Welw. ex Baker in Oliv. Fl. Trop. Afr. ii. p. 168. 

 Huilla. — Stem 3 to 4 ft. high, wholly herbaceous, erect, somewhat 



furrowed, shaggy or loosely tomentose ; leaflets on the upper part of 

 the stem acutely pointed at the apex ; flowers purple ; pods never 

 constricted, shorter and broader than in P. Hookeri Wight & Arn. 

 Sporadic, at the skirts of the forests near the great lake of Ivantala, 

 along the river Cacolovar, at an elevation of 5000 ft. ; fl. and fr. end of 

 Feb. 1860. No. 2144. Suffruticose ; fr. June 1860. Coll. Carp. 537. 

 Cf. Coll. Carp. 467. 



This plant is possibly, as Welwitsch himself suspected, a form of 

 P. Hookeri W. & A. 



2. P. Hookeri Wight & Arn. Prodr. Fl. Ind. p. 209 (1834); 

 Baker, I.e., p. 168. 



Anarthrosyne robusta E. Mey. Comm. PI. Afr. Austr. Dreg. p. 125 

 (1836). A. densiflora KI. in Peters Mossamb. Bot. i. p. 41 (1861). 



Golungo Alto.— A herb (or undershrub), 3 to 4 ft. high ; stem 

 erect, with many deep furrows, shortly tomentose, branched in a 



