MINT FAMILY. 457 



subcordate at base, mostly petioled; flowers in a dense cvlindraceuus 

 bractless or nearlj- bractless spike, 1 to 2 in. lonsj; lowest whorls 

 rarely separate; calyx-teeth deltoid, mucronate, oornmonlv equaling 

 the tube. 



Rather uncommon: A\'est Berkeley; Tibiiron, and southward to 

 Monterey. 



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

 tornentose; leaves ovate to lanceolate, obtuse or cordate at base, 

 mostly the \ery 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 Ranges: 

 Knoxville Grade to Lower Lake; Livermore Pivss; Pacheco Pass. 

 July-Aug. 



3. S. ajugoides Benth. Stems mostly erect, simple, b to 24 in. 

 tall; herhage densely soft-pubescent, sometimes glabrate; leaves 

 oblong, 1 to 2| in. long, acute or ohtuse helow, 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-likf 

 and the clusters less I'emote; 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 Sacra- 

 mento and San Joaquin Valleys. May-Aug. 



Var. stricta (S. stricta Greene). Small resin-glands abundant 

 beneath the shott pubescence on the leaves; leaves thinnisb, ovate- 

 lanceolate or oblong, 3 to 3J in. long, only the uppermost sessile; 

 calyx-teeth erect or somewhat connivent around the tube of the 

 corolla; upper lip of corolla very short. — In the original diagnosis, 

 the lateral lobes of the lower lip are described as reduced to mere 

 teeth. In specimens from Knight's Valley, the original locality, 

 collected June 18, 1894, by Mr. Davy, the corolla is small but the 

 lateral lobes are not any smaller relatively to the middle lobes of the 

 lower lip than in the species. We discover, however, that the corolla 

 tube has no evident constriction and the ring of hairs is horizontal, 

 not oblique. 



Var. velutina (S. velutina Greene). 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, trun- 

 cate or subcordate at base, 1 to 2 or even 3 J in. long, 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 turbiniite or campanulate- 



