314 MENTHACEAE. 



dense interrupted capitate clusters of the virgate spikes; calyx 

 turbinate-campanulate, the teeth triangular, aristulate, nearly 

 equaling the corolla-tube; corolla as in the last. 



Frequent along marshes and streams in the valleys and extending 

 into the pine belt of the mountains. May-August. 



2. S. californica Benth. Stems rather slender, simple from the 

 base or branched, 4-8 dm. high, sparsely retrorsely hispid, especially 

 on the angles, and more or less glandular with sessile glands; leaves 

 ovate-oblong, subcordate at the base, the lowest rather long-petioled, 

 sparsely villous-hispid, crenate; flowers about 6 in the whorls, these 

 rather remote; calyx campanulate-turbinate, the teeth triangular, 

 cuspidate, spreading in age; corolla purple, its tube about twice 

 the length of the calyx, with a horizontal hairy ring at its base 

 within. 



Frequent on shaded slopes and in canyons in all the mountains 

 and foothills. April-July. 



5. SALVIA L. 



Herbs or suffrutescent plants, aromatic and bitter, 

 with clustered usually showy flowers. Calyx bilabiate, 

 its upper lip usually 3-toothed or entire, the lower 

 3-cleft. Corolla deeply 2-lipped, erect, entire, emar- 

 ginate or 2-lobed, usually concave, the lower spreading, 

 its middle lobe often emarginate. Anther-bearing sta- 

 mens 2, the posterior pair wanting or rudimentary; fila- 

 ments usually short; connective of the anthers trans- 

 verse, linear or filiform, bearing a perfect anther-sac on 

 its upper end, its lower end dilated, capitate or some- 

 times bearing a small or rudimentary anther-sac. Ovary 

 deeply 4-parted; style 2-cleft. Nutlets smooth, usually 

 developing mucilage and spiral tubes when wetted. 



1. S. carduacea Benth. (Thistle-sage.) Rather stout erect 

 annual, 2-5 dm. high; stem with a cluster of ample sinuate-pinnatifid 

 spinulose-toothed leaves at base, these and the whole plant white- 

 woolly and thistle-hke; flowers in 1-4 dense head-like verticillate 

 clusters, these 2-3 cm. broad, equalled or surpassed by the ovate- 

 lanceolate pectinate-toothed bracts; calyx long- woolly, many- 

 nerved; corolla light blue, 2.5 cm. long; upper lip erose-denticulate 

 and cleft; lower with a large flabelliform fimbriately many -cleft 

 middle lobe; filaments very short; lower arm of the long filiform 

 connective bearing a polleniferous anther-cell. 



Occasional in sandy soil in all the valleys and in the foothills. 

 March-May. 



2. S. columbariae Benth. (Chia or Sage.) Slender annual, 

 branching and leafy below, 2-5 dm. high, naked and peduncle-like 

 above, more or less grayish pubescent with rather short reflexed 

 hairs; leaves rugulose, 1-2-pinnatifid into toothed or incised divisions; 



