1924] 
GRANT—A MONOGRAPH OF THE GENUS MIMULUS 185 
Distribution: known only from the type locality. 
Specimens examined: 
California: hillsides and rocky places, Murphy's, Calaveras Co., 
14 May, 1854, Bigelow (G, TYPE, and U. S.). 
20. M. pallens Greene, Leafl. Bot. Obs. & Crit. 2: 4. 1909. 
A small glabrous annual; stem 2-8 cm. long, slender, freely 
branched, internodes elongated; leaves pale-green, few, broadly 
obovate, spatulate or suborbicular, 4-14 mm. long, thin, nearly 
entire or sparingly and irregularly dentate, the lower with winged 
petioles, upper sessile; flowers in a short loose raceme or terminal, 
pedicels mostly three or more times the length of the corolla, 
almost filiform; mature calyx, usually 3-toothed, oval, 4-8 mm. 
long, teeth broadly triangular, obtuse, the two lower occasionally 
cleft at the apex, and folded toward the very large upper one, 
nearly closing the orifice, sinuses broad; corolla funnelform, .8-1.5 
em. long, tube slender, exserted, lobes rounded, unequal; style 
glabrous, scarcely longer than the mature calyx, stigma-lips 
nearly elliptical, unequal; capsule oblong, acute, about one- 
third the length of the calyx, short-stipitate; seeds oblong, 
longitudinally wrinkled. 
Distribution: wet places in forthern Mexico. 
Specimens examined: 
Chihuahua: springy places, Sierra Madre, 29 Sept., 1887, Pringle 
1347 (Phil.); near Colonia Garcia in the Sierra Madre, 7400 ft. 
alt., 12 Sept., 1899, Townsend & Barber 324 (M and Phil.). 
Durango: Santiago Papasquiaro, April and August, 1896, Edw. 
Palmer 55 (U. S., түре, and М); San Ramon, 21 April-18 May, 
1906, Edw. Palmer 87 (M and Phil.). 
21. M. dentilobus Rob. & Fern. in Proc. Am. Acad. 30: 120. 
1895; Conzatti & Smith, Fl. Sin. Mex. 117. 1897. 
M. parvulus Woot. & Standl. Contr. U. S. Nat. Herb. 16: 171. 
1913; 19: 587. 1915. | ; 
Low creeping plants, rooting from the nodes and forming dense 
mats; stems 3-5 em. high, slender, terete, nearly glabrous or 
Sparsely pubescent; leaves broadly ovate or suborbicular, 2-7 
mm. long, 2-5 mm. wide, dentate, crenate or nearly entire, mostly 
