Audiberfia. LABIATJC. GOl 



+- +■ Bracts more or less herharenns : leaves minutely rugose and crennlate. 

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



or awn-2)ointed. 



4. A. humilis, Benth. A span higli, tonientulose-canescent, cespitose: flowering 

 stem soape-like : leaveH mainly radical, oblanceolatc 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 ovato, villous-hirsute, their tips ami the calyx-teeth 

 subulate, not rigid : stamens and stylo long-exscrtod. 



Near San Francisco or Monterey, Douglas. Ilillaidos near Nevada, Bigdow. Mountains of San 

 Diego Co., Palmer. 



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

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

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

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

 mostly remote heads ovato or oblong, and with tlio calyx-teeth abruptly cuspidate or 

 avvnod : stylo and ospocially thn stamons little oxaortod. 



Common from the Contra Co.<»ta Mountains to the southern borders of the State. 



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

 calyx and the short bracts: upper lip of the calyx barely \-?>-mucronate, the teeth 

 of the lower more pointed : stamens and style moderately ex.ferted : stents i to S feet 

 high, with paniculate and virgate herbaceous remotelydeaved fowering branches ; 

 the stem beloiv woody. 



G. A. Palmeri, Gray. Minutely tonientulose-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 blue.'' 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. ]\rinutoly tomontuloso-canescont : loaves oblong or 

 tho upper lanceolate-oblong, all obtuso (an inch or two long): hoad-liko chislors oio 

 or two (mroly 3) and rathor distant, or singlo terminating ])(Mlunclo-liko branch- 

 lets : bracts ovato or oblong, merely raucronato or abruptly short-pointed, viscid- 

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

 Aca(]. x. 76. 



Mountains northeast of San Diego, at about 2,200 feet, Cleveland, Palnyi: 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 hnrdly exceeding the herbaceous 

 blunt and pointless bracts and calyx. 



8. A. nivea, Benth. Shrubby, 3 or 4 feet high, leafy, moaly-tomeiitose, and 

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

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

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

 longer than the lips : stamens and style conspicuously exsorted. 



Dry hillsides from Santa Rarbai-n southward. Full-grown ca]iitate nower-clustcrs nn incli 

 broad (rather lorger than in tho two pi-ece<ling species), from 2 to 4 in the interrupted spike. 



§ 2, Floivers thyrsoid-paniculate: the floral leaves and the few bracts nf the small and 



numerous clusters lanceolate or subulate. 

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

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



