MINT FAMILY. 357 



Corolla-tube not exceeding the calyx or not very greatly. 

 Flowers whitish. 



Whorls forming a dense spike; herbage very hirsute 1. S. pycnantha. 



Whorls distinct or indistinct, the inflorescence 3 to 9 in. long; herbage white-woolly... 



2. S. aliens. 



Whorls distinct, the inflorescence 2 to 4 in. long; herbage villous or silky-hirsute 



3. S. ajugoidcs. 

 Flowers purplish; stems retrorsely hispid or hirsute, especially on the angles. 



Hairy ring at middle of corolla-tube very oblique 4. S. bullata. 



Hairy ring near base of corolla-tube horizontal 5. S. calif or nica. 



Corolla-tube much longer than the calyx, the corolla red 6. 6'. chamissonis. 



1. S. pycnantha Benth. Erect, % to l 1 ^ ft. high; herbage mostly green 

 but hirsute, the surface of the leaves somewhat granulate-glandular; leaves 

 ovate to oblong-ovate, 1 to 4 in. long, obtuse or subcordate at base, mostly 

 petioled ; flowers in a dense cylindraceous bractless or nearly bractless spike 

 1 to 2 in. long ; lowest whorls rarely separate ; calyx-teeth deltoid, mucronate, 

 commonly equaling the tube. 



Eather uncommon: West Berkeley; Tiburon and southward to Monterey. 



2. S. albens Gray. Stems erect, strict, 2 to 5 ft. high; herbage white- 

 tomentose; leaves ovate to lanceolate, obtuse or cordate at base, mostly the very 

 lowest short-petioled ; whorls many-flowered, mostly indistinct and spicate, 

 only the lowest whorls, if any, somewhat remote, the inflorescence 3 to 9 in. 

 long; calyces often somewhat yellow-green, the teeth awn-pointed. 



Along rivulets or near springs in the dry inner Coast Eanges : Lake Co. to 

 Pacheco Pass. July-Aug. 



3. S. ajugoides Benth. Stems mostly erect, simple, 8 to 24 in. tall; herbage 

 densely soft-pubescent, sometimes glabrate; leaves oblong, 1 to 2*4 in. long, 

 acute or obtuse below, petioled, the upper sessile; one or two flower clusters 

 below rather remote and in the axils of upper ordinary leaves, the leaves above 

 becoming bract-like and the clusters less remote; calyx short-campanulate or 

 turbinate, very silky-villous, often concealing the teeth; hairy ring below middle 

 of corolla-tube very oblique, the tube slightly constricted below. 



Everywhere common in low lands in the Coast Ranges and Sacramento and 

 San Joaquin valleys. May- Aug. Var. stricta Jepson; small resin-glands 

 abundant beneath the short pubescence on the leaves; leaves thinnish, ovate- 

 lanceolate or oblong, 3 to Sy 2 i n - 10n g> onr y the uppermost sessile; calyx-teeth 

 erect or somewhat connivent around the tube of the corolla; upper lip of corolla 

 very short; corolla-tube without evident constriction, the ring of hairs hori- 

 zontal, not oblique. — Knights Valley. Var. velutina Jepson; pubescence 

 short and close; leaves cordate-ovate; spike elongated, interrupted. — Suisun 

 Marshes. Oct. This variety forms a transition to the preceding species. 



4. S. bullata Benth. Stems simple from the base or branched above, erect 

 or ascending, 10 to 22 in. long; foliage densely or sparsely hispid, the stems 

 retrorsely hispid, especially on the angles; leaves oblong-ovate, sometimes 

 varying to elliptic, coarsely crenate, truncate or subcordate at base, 1 to 2 or 

 even 3y 2 in - lo n g> the lower on petioles 1 to 2 in. long; flowers about 6 in a 

 whorl, the whorls rather remote (mostly 6 to 12 lines apart) ; calyx turbinate 

 or campanulate-turbinate, the teeth triangular, cuspidate, in age spreading, 

 somewhat indurated; corolla-tube 4 lines long, exserted about 1 line, bearing 

 within at its middle an oblique ring of hairs interrupted on the upper side 

 opposite the style and indicated exteriorly by a distinct although only partial 

 constriction; filaments densely pubescent at the middle. 



The most common species, found everywhere among the low hills of the 

 Coast Ranges. Mar. -Apr. When the flowers first open and the stamens stand 



