490 cii. LABiAT^E (baker). [Leucas. 



G5. Ij. bukobensis, Giirl-e in Engl. Jahrh. xxii. 189. Stem erect, 

 branched, villous. Leaves shortly petioled, ovate, 1 J-2 in. long, acute, 

 narrowed to the base, deeply toothed, pubescent or villous on both 

 surfaces. Whorls many- flowered ; bracts linear-subulate, about as long 

 as the calyx. Fruit-calyx pubescent, J-J in. long ; throat oblique ; 

 teeth deltoid, cuspidate ; lower lip deflexed. 



Mozamb. Dlst. German East Africa : Karagwe ; Bukoba, on Lake Victoria, 

 3600 ft., Stuhlmann, 1572. 



06. L. somaliensiSy Vatke in Linncea, xl. 181. A much-brnnched 

 perennial. Stems clothed with yellowish tomentum. Leaves sub- 

 orbicular, shortly petioled, \ in. long and broad, crenate- dentate, densely 

 villous on both sides. Whurls few, many-flowered, crowded, nearly 1 in. 

 in diam. ; bracts subulate, villous. Calyx in fruit J in. long, densely 

 villous; throat oblique, produced on the lower side ; upper lip entire or 

 emarginate ; teeth of the lower short, mucronate. Corolla twice as 

 long as the calyx, densely villous. — L. indica, Vatke in Oester. Bot. 

 Zeitschr. 1875, 95, not of R. Br. 



ITile Xiand. British Somaliland : Ahl Mountains, 3200-6500 ft., Eildehrandt, 

 851. 



38. LEONOTIS, Pers.; Benth. et Hook. f. Gen. Plant, ii. 1214. 



Calyx- tube funnel-shaped, arcuate, 8-10-ribbed ; throat oblique ; 

 teeth 8-10, more or less unequal, the upper the largest. Corolla-tube 

 as long as the calyx ; limb bilabiate ; upper lip elongated, concave, haiiy 

 outside ; lower short, deflexed, with 3 subequal lobes. Stamens 4, 

 didynamous, arcuate ; lower pair longest ; anthers 2-celled ; cells 

 divaricate, subconfluent. Disk equal. Style shortly bifid. Nucules 

 ovoid -triquetrous, obtuse or truncate, glabrous. — Coarse, tall, annual or 

 perennial herbs. Leaves petioled, ovate, crenate. Whorls very dense, 

 axillary. Flowers white or yellow. 



Species, about 12, several in South Africa, one now cosmopolitan in the Tropical 

 zone. 



Annuals with thin nearly glabrous leaves. 



Corolla pale yellow . . . . . . . \. L. pallida. 



Corolla deep bright yellow . . . . . 2. L. nepetcefolia. 



Perennials with densely hairy leaves. 



Corolla white . . . . . . . . 3. i. Melleri. 



Corolla ustially bright orange-yellow. 



Leaves sessile . . . . . . . 4. X. Leonurus. 



Leaves petioled. 



Calyx-teeth very unequal. 



licaves with fine grey pubescence beneath 

 Leaves with dense soft grey hairs beneath 

 Leaves densely clothed with soft white hairs 

 beneath ....... 



Calyx-teeth subequal ..... 



Perennial with slightly hairy leaves .... 



Perennial with glabrous leaves ..... 



