480) CII. LABIATH (BAKER). [ Leucas. 
21. L. ebracteata, Wawra d& Peyr. in Sitzb. Acad. Wien, Math- 
Nat. xxxviii. 577. An arnual herb, with softly pubescent stems 
1-2 ft. long, branched from {he base. Leaves distinctly petioled, ovate, 
obtuse or acute, 1-1} in. long, deeply inciso-crenate, softly pubescent on 
both surfaces. Whorls 5-6-flowered; bracts obsolete. Calyx 4—5 lin. 
long, pubescent ; throat oblique, produced on the lower side. Corolla 
whitish ; tube } in. long; upper lip as long as the tube.—Giirke in 
Engl. Jahrb. xxii. 139; Hiern in Cat. Afr. Pl. Welw. i. 877. 
Lower Guinea. Angola: Benguela; on the borders of woods near Benguela, 
Wawra, 292; Mossamedes, Capello, 5, Welwitsch, 5501! 5516! 5517, Chella 
Mountains, Johnston ! 
22. L. Holstii, Giirke in Engl. Pfl. Ost-Afr. C. 342. A much- 
branched perennial, with ascending pubescent branchlets. Leaves dis- 
tinctly petioled, ovate, 2-4 in. long, acuminate, rounded or narrowed 
to the base, deeply crenate, pubescent on both surfaces. Whorls dense, 
many-flowered, 14-14 in. diam., aggregated in a terminal head, sub- 
tended by much-reduced leaves; proper bracts obsolete. Calyx-tube 
} in. long; throat very oblique; teeth deltoid-cuspidate. Corolla 
white ; upper lip 4 in. long. 
Mozamb. Dist. German East Africa: Usambara ; Lutindi, 4800-5000 ft., 
Holst, 3312! Kwa Mshuza, Holst, 8925! 
23. L. neuflizeana, Cour. in Ann. Sc. Nat. 4, sér. xviii. 149. 
An annual, with erect densely hairy stems 3-1 ft. long. Leaves sessile, 
oblong-lanceolate, hairy, deeply crenate, the lower 1-2 in. long. Whorls 
many, 8-12-flowered, the upper approximate, the lower spaced out; 
bracts minute. Calyx densely hairy, {—} in. long ; lower side produced ; 
teeth deltoid-cuspidate. Corolla-lips small.—Britten in Gregory, Great 
Rift Valley, 396. LZ. paucicrenata, Vatke in Linnea, xliii. 98. 
Nile Land. Nubia: about 21° N. lat., coast-land up to between 3000 and 
4000 ft., Bent! Dessi Island, in Annesley Bay, Courbon, Eritrea: near Saati, 
Schweinfurth & Riva, 327! Abyssinia, Ehrenberg! British East Africa: Taita ; 
Maungn Mountain, 2000 ft., Johnston! Ndara, Hildebrandt, 2404! Ukamba ; 
Kitui, Hildebrandt, 2744. Kilimanjaro expedition, 40-60 miles from the coast, 
Johnston! Ngurunga Kifaniko, south of Tzavo, Gregory, Bondoni, Gregory, Kapte, 
Plains, Gregory. 
Mozamb,. Dist. German East Africa : Kilimanjaro ; Lake Chala, Volkens, 305! 
Also in Socotra. 
24. L. Schweinfurthii, (uirke in Engl. Jahrb. xxii. 136. A peren- 
nial herb, with long simple stems, densely clothed with short white hairs. 
Leaves sessile, oblong, moderately firm, pubescent on both sides, about 
1 in. long, with a few shallow obtuse teeth in the upper half. Whorls 
many, distant, few-flowered; bracts linear, minute. Calyx finely 
pubescent, } in. long ; throat oblique, produced on the lower side ; teeth 
deltoid, minute. Corolla not seen. 
Wile Land. 3ritish East Africa: Niamniam; Baginse Mountain, Schwein- 
furth, 3823! 
