294 LABIATE. 



campanulate or turbinate, 5 10-nerved, the 5 equal teeth often spiny- 

 pointed. Corolla white or purple; tube not dilated into a throat; upper 

 lip erect, concave, entire or emarginate; lower spreading, 3-lobed. Sta- 

 mens 4, under the upper lip; anthers 2-celled. 



* Corolla-tube little or not at all exceeding the calyx. 

 ^- Flowers whitish; herbage soft-hairy. 



1. S. ajiioi(los, Benth. Villous with white hairs; stems low and 

 decumbent, % 1 ft. high : leaves oblong, obtuse, crenate-toothed, 13 in. 

 long, often tapering to the petiole; the upper sessile: fl. about 3 in the 

 axils of the upper ordinary leaves, but more numerous in those of the 

 mere bracts above, and so becoming spicate: teeth of the short-campan- 

 ulate calyx mucronate- acuminate. In low moist fields. May -July. 



2. S. albens, Gray. Softly whitish-tomentose; stems erect and rather 

 strict, 3 5 ft. high: leaves oblong-lanceolate to ovate, subcordate at base, 

 obtuse, crenate, 24 in. long: virgate spike 3 9 in. long: teeth of the 

 turbinate-campanulate calyx triangular, awn-pointed. In marshy places 

 only. June Sept. 



3. S. pycnantha, Benth. Green, but hirsute or villous with soft 

 spreading hairs; stems 1 3 ft. high: leaves oblong-ovate, cordate, 

 obtuse, crenate, 2 4 in. long, all except the floral rather long-petioled : 

 fl. in a distinct bractless (or nearly so) dense cylindraceous terminal spike, 

 or the lowest verticillasters separated from the spike: calyx-teeth trian- 

 gular, mucronate. Only along streams, or about springy places among 

 the hills. May July. 



i -f Flowers purplish; pubescence coarser and shorter. 



4. S. Californica, Benth. Stoutish, 25 ft. high, green and rather 

 villous, the lower face of the ample ovate-oblong subcordate leaves 

 resinous-viscid, the surface not very rugose, the whole plant heavily 

 aromatic-scented: leaves gradually reduced to bracts of the interrupted- 

 spicate inflorescence; fl. 6 10 in the whorl: teeth of the fruiting calyx 

 ovate, mucronate-acute: corolla-tube somewhat exceeding the calyx; 

 lateral lobes of the lower lip reflexed. San Mateo Co. and southward, 

 on banks of streams. June. 



5. S. bnllata, Benth. More slender, 1018 in. high, the sharp 

 angles of the stem retrorsely hispid and the whole pubescence more 

 harsh, the herbage not resiniferous or viscid: leaves oblong-ovate, 

 coarsely crenate, strongly bullate-rugose : inflorescence as in the last, 

 but fl. fewer (about 6 to the whorl): calyx-teeth pungent: corolla-tube 

 not exserted; all the lobes of the lower lip eventually reflexed. Very 

 common in dry soils. March June. 



