MENTHACEAE. 313 



2. S. bolanderi Gray. Perennial by filiform rootstocks, pubes- 

 cent; stems slender, simple or branched from the base, about 3 dm. 

 high, very leafy to the summit; leaves ovate-elliptic, very obtuse, 

 closely sessile by somewhat cordate base, 2.5 cm. long or less; flowers 

 short-pedicelled, seldom equaling the leaf; corolla yellowish, throat 

 inflated, villous within. 



Moist woods, El Monte, Davidson. 



3. MARRUBIUM L. Hoarhound. 



Perennial, mostly woolly herbs, with dentate rugose 

 leaves, and small flowers in dense axillary clusters. 

 Calyx tubular, 5-10-nerved, regularly 5-10-toothed, the 

 teeth acute or aristate, spreading or recurved in fruit. 

 Corolla-limb 2-lipped, the upper lip erect, entire or emar- 

 ginate, the lower spreading, 3-cleft, its broader middle 

 lobe commonly emarginate. Stamens 4, didynamous, 

 included, the posterior pair the shorter; anthers 2-celled, 

 the sacs divergent. Style 2-cleft at the summit, the lobes 

 short. Ovary deeply 4-lobed. Nutlets ovoid, smooth. 



1. M. vulgare L. Stems stout, tufted, erect, white-woolly, 

 3-10 dm. high; leaves roundish crenate, except at the cuneate 

 truncate or subcordate base, petioled, white-woolly beneath, green 

 above, 2-4 cm. long; flowers whitish; calyx-teeth usually 10, subulate. 



Common in w^aste places. Flowering nearly all the year. 



4. STACHYS L. Hedge-nettle. 



Annual or perennial, commonly pubescent or hispid 

 herbs, with mostly purplish flowers loosely clustered in 

 terminal dense or interrupted spikes. Calyx mostly 

 campanulate, 5- toothed, the teeth nearly equal, erect or 

 spreading, pointed. Corolla-tube not dilated at the 

 throat, narrow; the limb strongly 2-lipped, the upper 

 lip erect or slightly turned back, overarched or concave, 

 entire or emarginate, lower lip spreading, 3-lobed, the 

 middle lobe broader than the often deflexed lateral ones, 

 sometimes 2-lobed. Stamens 4, didynamous, ascending 

 under the upper lip, the anterior pair the longer, some- 

 times deflexed or twisted after anthesis; anthers con- 

 tiguous in pairs. Ovary deeply 4-lobed; style 2-cleft, 

 the lobes subulate. Nutlets ovoid or oblong. 



1. S. albens Gray. Soft-tomentose or lanate with white wool, 

 3-15 dm. high, leafy; leaves oblong to ovate, usually with a more 

 or less cordate base, acutish at apex, 5-8 cm. long, the lower short- 

 petioled, the upper nearly sessile, the floral mostly shorter than the 



