876 



XCVII. LABIATE. [Le 



25. LEUCAS R. Br. ; Benth. & Hook. f. Gen. PI. ii. p. 1213. 

 Lasiocorys Benth. Lab. Gen. & Sp. p. GOO (1834); Benth. & 

 Hook, f., I.e. 



1. L. martinicensis Ait. Hort. Kew. edit. 2, iii. p. 409 (1811). 

 Clhiopodhwi viartinicense Swartz, Enum. Syst.;.Pl. p. 25(1760). 



Fhlomis caribmi Jacq. Collect, i. p. 154 (1786) ; Swai-tz, Fl. Ind. 

 Occ. ii. p. 1009 (1800). P. Martinicensis Swartz, Prodr. p. 88 

 (1788). 



PuNGO Andongo.— In fl. and fr. Dec. 1856. Nos. 5542, 5586ft. 



HuiLLA.— In fl. and fr. Jan. 1860. No. 5503. A herb, 1 to 3 ft. 

 high, annual, smelhng like a Landum. with the habit of a LeniKifis ; 

 flowers small, inconspicuous ; corolla white, the tube long, the limb 

 bilabiate ; the middle lobe of the lower lip constantly larger than the 

 lateral lobes, usually more or less bifid or at least emarginate at the 

 apex so that the lip appears 4-clef t ; the upper lip entire, erect, very 

 hairy. In neglected fields near Lopollo, plentiful ; in the national 

 garden, fl. 31 March 1860. No. 5502. 



2. L. decurvata Baker ms. in herb. Kew. 



A rather slender, erect, piiberulous, annual herb, 16 to 24 in. 

 high or more, sparingly branched ; stem obtusely quadrangular, 

 furrowed ; leaves elliptical, narrowed to the acute or sub-obtuse 

 apex, wedge-shaped at the base, membranous, minutely glandular, 

 more or less puberulous, green above, slightly or scarcely paler 

 beneath, more or less often deeply dentate except the lower part, 

 1 to 3^ in. long by 4 to 1^ in. broad ; petioles ranging up to ^ in. 

 long ; flowers numerous, ses.sile or subsessile, crowded in dense 

 sessile axillary and subterminal verticils, i to |^ in. long ; verticils 

 subglobose, i to 1 in. in diameter, bracteate at the base ; bracts 

 numerous, filiform-subulate or sub-linear, mostly } to | in. long, 

 ciliate ; calyx i to i in. long in flower, I to ^ in. long in fruit ; 

 the tube ellipsoidal-oblong, rather compressed, somewhat turbinate 

 at the ba.se, curving downwards at the apex, more or less 

 hispidulous or puberulous, lO-nerved, about ^ in. long in flower 

 and 1 in. long in fruit ; the limb bilabiate ; the lower lip 

 spreading or deflected, transversely oblong, 5-fid, Jjj to ^ in. long, 

 the lobes subulate, the middle 3 arising from a deltoid base; 

 the upper lip short, subtruncate with 5 erect subulate teeth ; 

 corolla-tube shortly exceeding the calyx, erect ; the limb bilabiate ; 

 the lower lip spreading, about -^j in. long, tritid ; the middle lobe 

 the largest, emarginate at the apex ; the upper lip erect, hairy 

 outside, fringed, yV to J^y in. long, broadly obovate, concave, 

 entire. 



GOLUXGO Alto.— In fl. and fr. Nos. 5526, 5541. 



Nearly related to L. martinicensis Ait. 



3. L. Welwitschii Giirke in Engl. Bot. Jahrb. xxii. p. 141 

 (19 Nov. 1895). 



Prxcio Andongo. — A herb, 1 to Ii ft. high ; rootstock woody ; stems 

 numerous, erect or ascending ; flowers brilliantly white. In the forest 

 on a ferruginous clay soil, near Qnibango ; fl. and fr. Jan. 1857. 

 No. 5563. 



