288 LABIATE. 



der-subulate, equalling the white corolla, not exceeding the nutlets : 

 rudimentary stamens slender, with thickened tips. Suisun marshes. 



4. KCELLLV, Moench. Erect perennials, with densely crowded ver- 

 ticillasters at the upper nodes, subtended by a pair of reduced leaves. 

 Calyx with 5 short equal teeth; throat naked within. Corolla-tube 

 scarcely exceeding the calyx; the short limb bilabiate, the upper lip 

 nearly flat and almost entire; lower spreading and of 3 short obtuse 

 lobes. Stamens 4, straight, divergent, the interior pair slightly longer : 

 anther-cells parallel. 



1. K. Californica (Torr.), O. Ktze. Herbage whitish with a very fine 

 and close soft pubescence : stem 23 ft. high, simple or with few ter- 

 minal branches, all floriferous: leaves ovate to ovate-lanceolate, sessile 

 by an obtuse or subcordate base, entire or denticulate, 1 3 in. long: 

 heads terminal and in the axils of some of the uppermost leaves, com- 

 pacted with slender bracts : fl. white. Contra Costa Co. hills. 



5. MONARDELLA, Benth. Herbaceous or suffrutescent. Flowers 

 in large involucrate terminal heads. Calyx tubular, 10 13-nerved, 5- 

 toothed, the teeth short, straight, subequal; throat naked within. Cor- 

 olla with slender tube; the bilabiate limb of 5 long and narrow linear or 

 oblong lobes. Stamens 4 exserted; anther-cells often divergent or 

 divaricate. 



* Perennials, sujfrulescent at the very base. 



1. M. yillosa, Benth. Stems 1 ft. high, stoutish, not densely tufted: 

 leaves ovate, green and subglabrous above, villous beneath, % 1 i D - long* 

 conspicuously veiny, crenate-dentate: flowers deep purple. Open grassy 

 hills near the sea. 



2. M. Sheltonii, Torr. More slender and tufted, as well as more 

 shrubby at base: leaves thinner, oblong, entire or denticulate, cinereous- 

 puberulent on both faces, the upper ones subsessile; flowers of a lighter 

 purple approaching lavender-color. Dry wooded hills from Napa and 

 Sonoma counties northward. 



* * Annuals, branching aboi}6; leaves not toothed. 

 K- Bracts of the head transparent between the veins. 



3. M. Douglasii, Benth. Pubescent: leaves lanceolate: bracts ovate 

 to ovate-lanceolate, cuspidate, somewhat hirsute, fenestrate by greenish 

 veins running through the hyaline surface from midrib to stout marginal 

 nerves: calyx -teeth rigid, subulate; tube hirsute. ML Diablo. 



4. M. Breweri, Gray. Puberulent: leaves ovate-oblong: bracts 

 broadly ovate, abruptly cuspidate, less translucent than in the last, the 

 veins more slender, destitute of strong marginal nerves: calyx-teeth trian- 

 gular-subulate, acute. Southern part of Contra Costa Co., Corral 

 Hollow, etc. 



