1924] 
GRANT—A MONOGRAPH OF THE GENUS MIMULUS 205 
568. 1876, in part; Syn. Fl. №. Am. 2!: 278. 1878, ed. 2, and 
Suppl. 449. 1886, in part; Greene in Bull. Calif. Acad. Sei. 1: 
116. 1885, in part. 
Stem glabrous, 5-16 cm. high, somewhat quadrangular with 
winged angles simple or freely branched from the base; leaves 
oval or mostly ovate, .8-2 cm. long, .6-1.2 mm. wide, all but the 
lowest sessile by a broad base, entire or sparingly denticulate, 
indistinctly 1-3-nerved; pedicels generally erect, slender, longer 
or shorter than the leaves; calyx 5-6 mm. long, glabrous or 
minutely puberulent, harrowly campanulate, becoming oval and 
chartaceous in fruit, 6-7 mm. long, 3 mm. wide, teeth slightly 
unequal, short, broad, mucronate, giving the mature calyx a 
somewhat truncate appearance, ciliate; corolla somewhat bi- 
labiate, .8-1 cm. long, rose-pink to pale pink with a yellow 
strea': bordered with rose-pink below the lower lip, tube included, 
throat funnelform, lobes deeply emarginate, erect, or the lower 
lip somewhat spreading; stamens included, white, anthers villous 
with scattered long white hairs; style slightly exserted, stigma- 
lips unequal, infundibuliform; capsule included, oval, acute at 
both ends, stipitate, placentae separating at the apex; seeds oval, 
apiculate at one end. 
Distribution: in moist or shaded places in the central and 
southern Sierra Nevada Mts., and in southern California. 
pecimens examined: 
California: Grass Valley, Amador Co., 2500 ft. alt., 2 May, 1895, 
Hansen 1126 (U. S.); Agricultural Station, Amador Co., 2000 
ft. alt., Мау, 1893, Hansen 1290 (M and Stanford); Italian 
Bar, South Fork Stanislaus River, Tuolumne Co., 5 June, 
1915, Jepson 6371 (Calif.); Columbia, Tuolumne Co.; 2200 
ft. alt., 1 June, 1915, Jepson 6341 (Cornell, M, and Calif.) ; 
Geological Survey of California, 1866, Rattan 217 (G and 
U. $); damp hillsides, Los Angeles, 14 May, 1854, Bigelow 
(С, түре, N. Y., and Phil.). 
This is the most common species in a closely related group of 
Plants consisting of M. inconspicuus, acutidens, latidens, and 
Grayi. Dr. Gray considered them to be conspecific, but later 
he gave varietal status to acutidens and latidens. The original 
material of M. Grayi was designated by Dr. Gray under the un- 
