Leucas. | CII. LABIATE (BAKER). 479 
18. L. Welwitschii, Giirke in Engl. Jahrb. xxii.141. A perennial 
herb, with slender shortly hairy stems. Leaves nearly sessile, suborbi- 
cular or broadly ovate, distinctly crenate, about 1 in. long, thinly hairy 
on both sides. Whorls few-flowered, confined to the upper nodes ; 
bracts minute. Calyx hairy, funnel-shaped, 4 in. long ; throat subequal ; 
teeth deltoid-cuspidate. Corolla-lips as long as the calyx, densely villous. 
—Hiern in Cat. Afr. Pl. Welw. i. 876. 
Lower Guinea. Angola, Welwitsch, 5563 ! 
19. L. tomentosa, Giirke in Engl. Pfl. Ost-Afr. C. 343. A 
tomentose undershrub 4-5 ft. high, with ascending branches. Leaves 
sessile, oblanceolate, deeply crenate towards the obtuse apex, pubescent 
on the upper surface, tomentose beneath. Whorls many-flowered. 
Calyx densely villous; throat subequal; teeth deltoid-cuspidate. 
Corolla white. 
Mozamb. Dist. German East Africa: Kilimanjaro; between the Pangani 
and Himo Rivers, 2000-2500 ft., teste Guirke. 
20. L. martinicensis, 2. Br.; Benth. in DC. Prod. xii. 533. An 
erect branched annual herb, 2-3 ft. high, with pubescent branches. 
Leaves oblong, thin, petioled, distinctly crenate, hairy on both sides, 
sometimes 2~3 in. long. Whorls very dense, remote; bracts large, 
subulate. Calyx very hairy, } (finally 4) in. long; throat oblique ; 
upper lip produced ; teeth subulate, unequal, the largest finally 4 in. 
long. Corolla small, fugitive—A. Rich. Tent. FI. Abyss. i. 200 ; 
Vatke in Oester. Bot. Zeitschr. 1875, 95 ; Oliv. in Trans. Linn. Soc. xxix. 
139 ; Schweinf. Beitr. FI. Aethiop. 123 ; Hook. f. Fi. Brit. Ind. iv. 688 ; 
Zarb, Cat. Spéc. Bot. Pfund, 33; Engl. Hochgebirgsfl. Trop. Afr. 370 ; 
Hiern in Cat. Afr. Pl. Welw. i. 876; LZ. Schimpert, Hochst. ex A. Br. 
in Flora, 1841, i. 279; Avetta in Ann. Istit. Bot. Roma, vi. 61. 
Upper Guinea. Senegal, Leprieur(?) 122! Gambia, Brown-Lester, 40! 
Ingram ! ; 
Nile Land. Nubia: Hor Tamanib, near Suakin, Zord! Cordofan: Obeid, 
Pfund, 22! Kritrea: Bogos; Keren, Steudner, 1404! Shohos country, Ehrenberg ; 
Habab, 5800 ft., Hildebrandt, Galabat: region of Matamma, Schweinfurth, 148! 
Sennar, Prince of Wurtemberg. Abyssinia: Tigre ; Hamedo, 5200 ft., Schimper, 
139, near Adowa, Schimper, 15! Shire; on the banks of the River Tacazze, Petit, 
124! Shoa ; Fiume Havasch, near Mount Bosset, cultivated specimen, Ragazzi ; 
Samen ; Jaja, 6500 ft., Schimper, 283, Ataba, Steudner, 1409; and without Precise 
locality, Schimper, 261! Somaliland: near Harar, Hardegger § Pau itsch e. 
British Somaliland, without precise locality, Mrs. Lort- Phillips ! British Hast Africa: 
Jur; Jur Ghattas, Schweinfurth, 2406! Toru district, near Ruwenzori, at Kivata, 
Scott-Elliot, 7653 ! 
Lower Guinea, Angola, Welwitsch, 5503! 5542! ae CTaiamwer 
's . Pemba Island, Bojer! German Jast rica: Uniamwezi ; 
Mininge See } Grant, 181! and Muhulalo, ex Giirke. Kilimanjaro ; Warangu, 
4800 ft., Volkens, 606!  Usambara; Amboni, Holst, 2842! Usaramo, Sts mann ! 
British Central Africa : Northern Zambesia ; Boruma, Menyharth, 971! Nyasaland ; 
Masuka Plateau, 6500-7000 ft., Whyte / and without precise locality, Buchanan, 79! 
4 cosmopolitan tropical weed, 
