198 FOUNDATIONS OF BOTANY 



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. Garden Sage. 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. 

 Introduced from Europe and a common garden herb.* 



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. Creeping Thyme. Smooth or hairy, stem 

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

 in. long, flat, ovate or obovate-lanceolate, obtuse. Flowers crowded 

 in spikes at the end of the branches. Corolla rose-purple, ^-| in. 

 long. Becoming introduced from Europe. 



2. T. vulgaris, L. Garden Thyme. More erect than No. 1. 

 Leaves somewhat curled under at the edges. Flower-clusters shorter 

 and not all terminal. Corolla pale purple. Cultivated from Eui'ope 

 as an herb. 



88. SOLANACE-S. Nightshade Family. 



Mostly tropical herbs or shrubs (rarely trees). Leaves 

 usually alternate, without stipules. Flowers regular, borne 

 on bractless pedicels at or above the leaf axils, or in cymes. 

 Calyx free from the ovary, 5-cleft, usually persistent. Corolla 

 hypogynous, wheel-shaped, bell-shaped, or salver-shaped, 5- 

 lobed. Stamens 5, short, inserted on the corolla-tube. Ovary 

 2-celled or imperfectly 4-celled ; style simple ; stigma simple 

 or lobed. Fruit a many-seeded capsule or berry. 



