LABIATiE. 293 



1- S. Californica, Gray. Slender, 8—20 in. high, puberulent: haves 

 oblong, obtuse, entire, short-petiolate, 1 in. long: corolla 1 in. long, yellow- 

 ish-white. — Common in the mountain districts. May — July. 



2. S. tuberosa, Benth. Slender, sparsely leafy, 2—4 in. high, from 

 moniliform-tuberous rootstooks; soft-pubescent or villous: leaves ovate, 

 coarsely and obtusely few-toothed, %— % in. long: corolla %—% in. 

 long, deep blue: nutlets strongly muricate. — Open hills, in clayey or 

 stony soil. March — May. 



15. BRUNELLA, Tourn. Low, perennial, with blue flowers in a ter- 

 minal cylindraceous head or spike. Calyx oblong, 10-nerved, reticulate- 

 veiny, bilabiate; lips flattened and closed in fruit; upper dilated, 

 truncate, 3-toothed. the teeth broad and short; lower with 2 lanceolate 

 teeth. Upper lip of corolla arched, entire; lower 3-lobed; its middle 

 lobe drooping, rounded, concave, denticulate. Filaments 2-toothed at 

 apex, the lower tooth bearing the anther, the cells divergent. 



1. A. vulgaris (L.). Boughish-pubescent or glabrous, 6 — 10 in. high: 

 leaves ovate or oblong, entire or toothed, petiolate: corolla violet or 

 darker. — Moist borders of woods, and cool summits of hills. 



16. MARRUBIUM, Columna. Bitter-aromatic whitish-woolly ru- 

 gose-leaved perennial, with dense verticillasters of small white flowers in 

 all the axils. Calyx 10-nerved, and with as many unequal teeth, some or 

 all of these spinescent and the tips recurved. Corolla very short, white ; 

 upper lip 2-lobed; lower 3-cleft. Stamens i, not exserted: anther-cells 

 confluent. 



1. M. vuijGABE, L. (Hobehound). Stem stout, tufted, white-woolly, 

 2 ft. high: very rugose rounded and crenate leaves only hoary, rhombic- 

 ovoid, 1 — 2 in. long, petiolate. — Very common wayside weed. 



17. LA.MIUM, Pliny. Decumbent slightly fleshy small herbs, with 

 rounded toothed or lobed leaves, and pink or purple flowers in the axils. 

 Calyx funnelform, 5-toothed. Corolla with rather long tube; upper lip 

 vaulted, entire or notched; lower spreading, 3-lobed, the lateral lobes 

 usually reduced to small teeth, the middle one emarginate. Stamens i; 

 anther-cells divaricate, confluent. Nutlets truncate at summit. 



1. L. AMPLEXiOAULB, L. Small annual, branching at base, 3 — 6 in. 

 high, sparingly pubescent: lower leaves deltoid-ovate, petiolate; floral 

 round-reniform, sessile and amplexicaul; all coarsely toothed: calyx- 

 teeth triangular-acuminate, as long as the tube: corolla rose-purple, 

 % in. long or more; the fl. rather few in the axils. — Fields of Sonoma 

 Co., Bioletli. 



18. STACHYS, Diosc. Ours all perennial, with upright rather sharply 

 quadrangular leafy stems; flowers in the upper axils, or separate from 

 the leafy part of the stem and in a terminal spike. Calyx narrow- 



