XCVI. LABIzVTiE. 307 



ricatiiig. Style 2-fid ; lobes subulate. Nuts obtuse, not trun- 

 cate.— i)a Prod. xii. p. 516. 



Perennial herbs or undershrubs, generally coarsely scented. Leaves 

 rugged, cordate at base, entire or crenate ; the floral similar. Whorls axil- 

 lary. — B. Africana, Benth., common througli tliecolony, is our only species. 



15. LEUCAS, Benth. 



Calyx tubular or narrow-bellshaped, striate, straight or in- 

 curved, the mouth equal or oblique, 8-10-toothed. Corolla- 

 tube included, annulate or nude within ; limb 2-lipped, upper 

 lip concave, erect, entire or emarginate, very hairy externally, 

 lower longer, spreading, 3-fid, the medial lobe very large. 

 Stamens ascending under the galea; filaments n ude ; anthers 

 approaching in pairs, with divaricate cells. Upper lobe of 

 style very short, low^er subulate. Nuts 3-corncred, obtuse. — 

 BG. Prod. xii. p. 523. 



Herbs or undershrubs, often weeds in warm countries. Leaves subentii'c 

 or toothed ; whorls axillary, few- or many-flowered. Corolla mostly white. 

 — 2 species natm-alized near Natal. 



16. LASIOCORYS, Benth. 



Calyx somewhat bell-shaped, 10-nerved, with 5 ovate 

 teeth, rarely with interposed toothlets. Corolla-tube in- 

 cluded, annulate within ; limb 2-lipped ; upper lip entire, con- 

 cave, erect, very hairy without ; lower spreading, scarcely 

 longer, 3-fid, the medial lobe scarcely wider, emarginate. Sta- 

 mens 4, ascending ; filaments nude ; anthers in pairs, under 

 the upper lip, 2-celled ; cells divaricate. Style-lobes subulate, 

 the lower short or very short. Nuts 3-cornered, obtuse. — 

 DC. Prod. xii. p. 534. 



African undershrubs, allied to Ballota and Leiicas. — 1 Cape species, in 

 the Eastern district. 



17. LEONOTIS, E. Br. 



Calyx ovate-tubular, 10-nerved, incurved, with an oblique, 

 10-toothed mouth, the upper tooth larger. Corolla-tube ex- 

 serted, nude or partly annulate within ; limb 2-lipped, upper 

 lip concave, erect, elongate, entire, lower short, spreading, 3- 

 fid, the medial lobe scarcely longer. Stamens under the 

 galea ; filaments nude at base ; anthers in pairs, 2-celled, diva- 

 ricate. Upper style-lobe very short. Nuts obtuse. — DC. 

 Prod. xii. p. 534<. 



African hei-bs and halfslirubs, with bright scarlet or orange sliowy 

 flowers, in very dense whoi-ls ; leaves ovale or lanceolate, crenate. — 8 Cajie 

 species, Eastern and at Natal. 



X 2 



