MINT FAMILY 213 



at the base, rather obtuse at the tip. Calyx bristly, the lance-awl- 

 shaped teeth rather spiny. Upper lip of the corolla downy. In wet 

 soil, especially X. 



2. S. tenuifolia Willd., var. aspera. Taller than No. 1; angles of 

 the stem covered with stiff reflexed bristles, but the sides often 

 smooth. Leaves serrate, nearly all with distinct petioles. Calyx 

 usually smooth. Corolla smooth throughout. Damp thickets and 

 along streams. 



VIII. SALVIA L. 



Annual, biennial, or perennial herbs, or sometimes shrubby. 

 Flowers in spikes, racemes, or panicles, usually sho^vy. Calyx 

 tubular or bell-shaped, not bearded in the throat, 2-lipped, 

 the upper lip entire or 3-toothed, the low^er 2-cleft. Corolla 

 2-lipped ; the upper lip entire or notched, the low^er spread- 

 ing, 3-lobed, with the middle lobe longer. Stamens 2, short; 

 anthers 2-celled, the upper cell fertile, the lower imperfect. 

 Style 2-cleft. Nutlets smooth.* 



1. S. lyrata L. Lyre-Leaved Salvia. Biennial or perennial; 

 stem erect, sparingly branched above, rough-hairy, 1-2 ft. high. 

 Leaves mostly basal, spreading, lyrate-pinnatifid, usually purple ; 

 stem leaves small, sessile or short-petioled. Racemes many-flowered, 

 whorls about 6-flowered. Calyx teeth short on the upper lip, long 

 and awl-shaped on the lower. Corolla blue or purple ; the tube about 

 1 in. long, dilated upward. On dry soil.* 



2. S. officinalis L. Gakdex Sage. Stem shrubby, slender, much 

 branched below^, 1 ft. high. Leaves grayish-green, lance-oblong, cre- 

 nate, w^rinkled. Flowers in terminal spikes, whorls several-flowered. 

 Corolla blue, upper lip strongly arched, about equaling the lower. 

 A common garden herb. Cultivated from Europe.* 



IX. THYMUS L. 



Small, much-branched shrubs, very aromatic. Leaves small, 

 entire, margins often rolled under. Whorls of tiow^ers few- 

 flow^ered, in loose or close spikes ; bracts very small ; flowers 

 usually purple. Calyx ovoid, 2-lipped ; upper lip o-toothed ; 

 lower 2-cleft, woolly in the throat. Corolla slightly 2-lipped. 

 Stamens 4, usually projecting from the flower, straight ; lower 

 pair longer. 



1. T. Serpyllum L. Creeping Thyme. Smooth or hairy, stem 

 prostrate, the flowering branches somewhat ascending. Leaves l-^ 



