206. LABIATAE 4^ 



spreading. Disc equal-sided. False whorls many-flowered. Shrubs or 



undershrubs. — Species 8. Central Africa and Egypt. Otostegia Benth. 



Calyx equally or subequally toothed, very rarely two-lipped with a 3- 



toothed upper and a 2-cleft lower lip 5^ 



58. Calyx funnel-shaped, lo-nerved, subequally toothed. Corolla white or 



red ; tube with a ring of hairs inside ; upper lip notched, densely hairy. 

 Anther-halves finally spreading. Leaves toothed. — Species 7. North, 

 East, and South Africa. Some species are used medicinally. Ballota L. 

 Calyx tube- or bell-shaped, 5 — lo-nerved. — Species 80. Some of them 

 are used as ornamental or medicinal plants, others are poisonous for 

 cattle. (Including Betonica L.) Stachys L. 



59. (45.) Stamens ascending under the upper lip of the corolla, more or 



less arched. Corolla two-lipped. Herbs or undershrubs. [Subtribe 



MELISSINAE.] 6o 



Stamens projecting straight forwards, divergent 63 



60. Stamens 2. Anthers with 2 confluent halves, or with a fertile and a rudi- 



mentary half, or one half only developed. Style-apex unequally two- 

 cleft. Calyx 13-nerved, two-lipped. Corolla-tube shortly exserted, 

 glabrous within. False whorls few-flowered. — Species 3. North Africa. 



Ziziphora L. 

 Stamens 4 61 



61. Corolla-tube ascending-reflexed at the middle, glabrous within. Corolla 



white or yellowish. Calyx 13-nerved, two-lipped. Style-apex cleft 

 into two subequal, awl-shaped branches. Leaves toothed. False 

 whorls few-fioWered. — Species i. North Africa. Used as an orna- 

 mental and medicinal plant. "Balm." Melissa L. 



Corolla-tube straight or slightly curved 62 



62. Calyx inflated in the fruit, 15 — 20-nerved, subequally 5-toothed. Corolla 



red ; tube included, glabrous within. Style-apex cleft into two equal, 

 awl-shaped branches. Undershrubs. Leaves entire. False whorls 

 4 — 6-flowered. — Species i. North-west Africa (Algeria). (Under 



Satureia L.) Saccocalyx Coss. 



Calyx not inflated, 10 — 15-nerved. Corolla-tube exserted. — Species 45. 

 Some of them are used as pot-herbs (savory), as a substitute for tea, or 

 as medicinal or ornamental plants. (Including Calamintha Moench, 

 Clinopodiiim L., and Micromeria Benth.) Satureia L. 



63. Calyx 15-nerved, equally 5-toothed. Corolla blue, rarely reddish or white, 



2-lipped, with an included tube. Stamens 4, in two pairs of unequal 

 length, ascending at the base, divergent and projecting straight forwards 

 towards the apex. Shrubs. Leaves entire, narrow. False whorls 

 6- or more-fiowered. — Species i. North-west Africa (Morocco). Used 

 as an ornamental plant and for preparing perfumes and medicaments. 



[Subtribe hyssopinae.] Hyssopus L. 



Calyx 10— 13-nerved. Stamens divergent and projecting straight forwards 

 from the base. . "4 



