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 N. 
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 showy. Calyx 
tubular or bell-shaped, not bearded in the throat, 2-lipped, 
the upper lip entire or 3-toothed, the lower 2-cleft. Corolla 
2-lipped; the upper lip entire or notched, the lower 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-Leavep Satvia. 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. Garpen Sacre. Stem shrubby, slender, much 
branched below, 1 ft. high. Leaves grayish-green, lance-oblong, cre- 
nate, wrinkled. 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 flowers few- 
flowered, in loose or close spikes; bracts very small; flowers 
usually purple. Calyx ovoid, 2-lipped; upper lip 3-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. Creepinc Taymr. Smooth or hairy, stem 
prostrate, the flowering branches somewhat ascending. Leaves }4 
