478 206. LABIATAE 



50. Upper lip of the corolla laterally compressed ; tube with a ring of hairs 



inside. Corolla red or yellow. Calyx 5-toothed. Disc equal-sided. 

 False whorls 6- or more-flowered, axillary. — Species 4. North Africa. 



Used as ornamental or medicinal plants Phlomis L. 



Upper lip of the corolla not laterally compressed ; tube included. Corolla 

 white or red. — Species 90. Tropical and South Africa and Egypt. 

 Several species are used medicinally ; others are noxious weeds. (In- 

 cluding Lasiocorys Benth.) Leucas R. Br. 



51. Nutlets 3-angled, with a truncate apex. Leaves toothed or divided. . 52 

 Nutlets more or less egg-shaped, with a rounded apex 55 



52. Style-branches very unequal. Calyx two-lipped with entire lips. Corolla 



red, with a much exserted tube. Small shrubs. — Species i. East 

 Africa (Somaliland). (Under Tinnaea Peyr. et Kotschy). 



Renschia Vatke 



Style-branches almost equal. Calyx 2-lipped with spiny-toothed lips, or 



subequally 5-toothed. Upper lip of the corolla hairy. Herbs. , . 53 



53. Calyx-limb broadened, two-lipped, with 5 — 10 spiny teeth. Corolla 



white ; tube included, furnished with a ring of hairs inside, sUghtly 

 widened above. Anther-halves spreading. Disc equal-sided. — Species 



I. North Africa (Tunisia) Moluccella L. 



Calyx-limb not broadened, subequally 5-toothed. Corolla white or red. 54 



54. Calyx-teeth spinous. Corolla-tube slightly widened above. Disc equal- 



sided. — Species 2. One a native of North Africa, the other naturalized 

 in the Mascarene Islands. Used medicinally. . . . Leonurus L. 

 Calyx-teeth unarmed. Corolla-tube ventricose above. Anther-halves 

 finally spreading. — Species 8. North Africa and Abyssinia. Some 

 species are used medicinally. " Deadnettle." . . . Lamium L. 



55. Nutlets densely clothed with scales at the apex. Corolla-tube glabrous 



within ; upper lip short, slightly concave, notched or two-lobed, glabrous 

 or downy. Anther-halves usually confluent at an early stage. Disc 

 equal-sided. Herbs. Leaves toothed. — Species 15. Tropics. 



Achyrospermum Wall. 

 Nutlets not scaly. Anther-halves not or tardily confluent 56 



56. Anthers of the posterior stamens with one half, of the anterior with both 



halves developed ; halves placed transversely. Disc equal-sided. 

 Corolla-tube with a ring of hairs inside ; upper lip short, slightly concave, 

 entire, glabrous or very scantily hairy. Calyx equally 5-toothed. 

 Herbs. — Species 2. Mascarene Islands. Used medicinally. 



Anisomeles R. Br 



Anthers all with both halves developed. Upper lip of the corolla more or 



less hairy 57 



57. Calyx funnel-shaped, lo-nerved, 2-lipped ; upper lip entire or 3-toothed, 



lower much larger, entire or 4-toothed. Corolla-tube with a ring of 

 hairs inside ; upper entire, densely hairy. Anther-halves finally 



