Audibertia. LABIATE. 601 



-f- -t- J3racts more or less herbaceous : leaves minutely rugose and crenulate. 



-n- Corolla half an inch or less in length : all the calyx-teeth and the bracts subulate 



or awn-pointed. 



4. A. humilis, Benth. A span high, tomentulose-canescent, cespitose : flowering 

 stem scape-like : leaves mainly radical, oblanceolate or spatulate-oblong, very obtuse, 

 tapering into a slender petiole : spike of 3 or 4 small and closely sessile head-like 

 clusters : bracts lanceolate or ovate, villous-hirsute, their tips and the calyx-teeth 

 subulate, not rigid : stamens and style long-exserted. 



Near San Francisco or Monterey, Douglas. Hillsides near Nevada, Bigelow. Mountains of San 

 Diego Co., Palmer. 



5. A. Stachyoid.es, Benth. Decidedly shrubby, 3 to 8 feet high, rigid, with 

 herbaceous flowering branchlets, leafy, cinereous-tomentulose, becoming greener and 

 glabrate : leaves oblong-lanceolate, tapering into more or less of a petiole, obviously 

 crenate, the upper surface glabrous with age : bracts of the 3 to 5 dense sessile and 

 mostly remote heads ovate or oblong, and with the calyx-teeth abruptly cuspidate or 

 awned : style and especially the stamens little exserted. 



Common from the Contra Costa Mountains to the southern borders of the State. 



++ ++ Corolla two thirds to three fourths of an inch long, its tube much exceeding the 

 calt/x and the short bracts: upper lip of the calyx barely l-3-mucronate, the teeth 

 of the lower more pointed : stamens and style moderately exserted : stems 4 to S feet 

 high, with paniculate and virgate herbaceous remotely-leaved flowering branches ; 

 the stem below woody. 



6. A. Falmeri, Gray. Minutely tomentulose-canescent : leaves oblong-lanceolate, 

 acute (the larger 2 or 3 inches long) : head-like clusters of flowers 5 to 8, remote in 

 the elongated virgate naked spike : bracts oblong or lanceolate, acuminate into a slen- 

 der cuspidate tip : lower calyx- teeth subulate-setaceous. 



Near Tighes Ranch in the mountains northeast of San Diego. "Corolla a delicate hlue. " In 

 some respects intermediate between the foregoing and the following. The virgate much inter- 

 rupted spikes often a foot or more in length ; the whorl-like capitate clusters from 3 inches to 

 half an inch apart. 



7. A. Cleveland!, Gray. Minutely tomentulose-canescent : leaves oblong or 

 the upper lanceolate-oblong, all obtuse (an inch or two long) : head-like clusters one 

 or two (rarely 3) and rather distant, or single terminating peduncle-like branch- 

 lets : bracts ovate or oblong, merely mucronate or abruptly short-pointed, viscid- 

 pubescent, as is the calyx : upper lip of the latter short and subulate. Proc. Am. 

 Acad. x. 76. 



Mountains northeast of San Diego, at about 2,200 feet, Cleveland, Palmer. The latter found 

 it growing in or near the habitat of the preceding and closely related species. 



++ ++ ++ Corolla barely half an inch long, its tube hardly exceeding the herbaceous 

 blunt and pointless bracts and calyx. 



8. A. nivea, Benth. Shrubby, 3 or 4 feet high, leafy, mealy-tomentose, and 

 very white : leaves oblong-lanceolate, obtuse, very short-petioled, the upper trun- 

 cate at base : bracts ovate or oblong, much imbricated : calyx splitting down the 

 front and at length notched posteriorly: corolla "light purple"; the tube hardly 

 longer than the lips : stamens and style conspicuously exserted. 



Dry hillsides from Santa Barbara southward. Full-grown capitate flower-clusters an inch 

 broad (rather larger than in the two preceding species), from 2 to 4 in the interrupted spike. 



2. Floivers thyrsoid-paniculate : the floral leaves and the few bracts of the small and 

 numerous clusters lanceolate or subulate. 



9. A. polystachya, Benth. Shrubby, 3 to 10 feet high, closely and finely 

 tomentose-canescent : herbaceous flowering branches virgate : leaves lanceolate or 



