318 MENTIIACEAE. 



villous pubescent; heads 15 to 20 mm. broad, many flowered; calyx 

 7 mm. long, purple tinged, tube villous pubescent and glandular, 

 teeth subulate, 2 mm. long, villous within; corolla tube not exserted, 

 lobes 4 mm. long; lower stamens slightly exceeding lobes, a third 

 longer than upper pair. 



Known only from near the summit of Mt. San Antonio. 



2. M. epilobioides erecta Abrams. Perennial from a woody 

 rootstock, 1 to 2 dm. high; branches erect or decumbent, light 

 green, with short retrorsely spreading pubescence of slender 2-celled 

 hairs. Leaves oblong-linear, obtuse, entire, firm, only the midvein 

 evident, bright glaucous green, appearing glabrous, but minutely 

 and sparsely pubescent under a lens; heads 12 to 15 mm. broad; 

 bracts ovate-lanceolate, 10 mm. or less in length, acute or short 

 acuminate, membranaceous, green or faintly tinged with purple; 

 calyx 6 mm. long, nearly glabrous except villous inner surface of 

 teeth; corolla tube well exserted, 8 mm. long; stamens very unequal; 

 filaments villous below the middle. 



Open coniferous forests of the San Bernardino and San Antonio 

 Mountains. 



3. M. hypoleuca Gray. Stems tufted, woody at base, 3 to 5 dm. 

 high, more or less tomentose; leaves ovate-oblong, 2 to 4 cm. long, 

 obtuse, entire, slightly revolute, densely white tomentose beneath, 

 glabrous and shiny above, veins evident, impressed on upper surface; 

 bracts broadly ovate, obtuse, 1 cm. long, tomentose; calyx villous, 

 its teeth triangular-subulate; corolla pale. 



Coastal mountains of southern California from Santa Barbara 

 to Orange county; Santa Monica Mountains. 



4. M. lanceolata Gray. Stems more or less puberulent, usually 

 simple below, 1 to 5 dm. high; leaves lanceolate-oblong, 25 to 40 

 mm. long, tapering into a slender petiole, green and glabrous or 

 minutely puberulent; bracts ovate to ovate-lanceolate, acute, 

 herbaceous or more or less tinged with purple, lateral veins usually 

 prominent, sparsely and minutely scabrous, especially on veins; 

 calyx-teeth triangular-subulate, villous within, sparsely pubescent 

 without and more or less hispid with spreading hairs at sinuses; 

 corolla rose-purple. 



A common species on the sandy plains, and extending to the 

 coniferous forests of the mountains. Very aromatic, and frequently 

 called pennyroyal. 



5. M. pringlei Gray. Stems erect, branching near base, puberu- 

 lent; leaves lanceolate, 35 mm. long or less, puberulent, narrowed to 

 a short petiole; bracts broadly ovate, abruptly acuminate, 8 to 10 

 mm. long, villous pubescent; calyx teeth narrowly triangular-subu- 

 late, villous pubescent without; corolla rose-purple. 



Sandy plains of San Bernardino Valley near Colton. 



6. M. elmeri Abrams. Stems erect, branching from the base, 

 puberulent; leaves lanceolate to narrowly ovate, 25 mm. long or 

 less, narrowed to a short petiole, somewhat cinereous with a fine 

 puberulence; bracts broadly ovate, abruptly acuminate, 12 mm. 

 long, sparsely scabrous, green below, becoming membranous above 



