1924) ; 
GRANT—A MONOGRAPH OF THE GENUS MIMULUS 249 
LI 
Со., іп 1915. Mature specimens may readily be distinguished 
by the corky calyx-ribs, a character found also in M. Bioletti. 
As indicated by the name, the corolla in M. bicolor is usually 
white and yellow, but an interesting color form, in which the 
corolla is deep orange, occurs in many places where the typical 
formisfound. The following collections illustrate this variation: 
Sugar Pine, Tuolumne Co., 3500 ft. alt., 10 June, 1917, A. L. 
Grant 958 (M, G, N. Y., Calif., and Stanford); Wawona, Mari- 
posa Co., 5000 ft. alt., 22 June, 1918, A. L. Grant 1308 (Cornell, 
M, and Calif.); Snow Creek, Mariposa Co., 27 May, 1893, 
Congdon (Stanford). In the specimens of A. L. Grant 958 from 
Tuolumne Co., the plants were abundant in large patches and only 
a few specimens of typical M. bicolor grew with them; in nearby 
places the two forms were in adjoining patches and in other 
places they were widely separated. 
56. M. Biolefti Eastw. in Proc. Calif. Acad. Sci. ПІ. 2: 290. 
1902. 
An erect, glandular-pubescent annual; stems 5-15 cm. high, 
simple or branched; leaves few, oblanceolate, 1-2.5 cm. long, 
2-6 mm. wide, tapering at both ends, sessile, entire or denticulate, 
the spatulate basal leaves usually slender-petioled; flowers 
humerous, pedicels erect, slightly longer than the subtending 
leaves; calyx oblong-campanulate, 7-8 mm. long, glandular- 
. pubescent, often dotted with red, in fruit becoming somewhat 
inflated through the thickening of the ribs and 9-10 mm. long, 
ribs distinctly corky in mature specimens, teeth equal, triangular- 
acute, 2 mm. long, spreading, glandular-ciliate; corolla 1.5-2 em. 
long, reddish-purple with dark red blotches down each lobe and 
two broad yellow patches, dotted with red, below the lower lip, 
tube scarcely exserted, throat broad, funnelform, hairy within, 
with club-shaped hairs on the ridges, lobes nearly equal, usually 
emarginate; stamens included, anthers yellow, hispid, filaments 
glabrous; style sparsely pubescent; stigma reddish-purple, pel- 
tate-funnelform, lobes unequal, fimbriate; capsule included, 
ovate, acute, dehiscent down both sutures, placentae adherent 
he apex; seeds oval, favose-areolate. 
Distribution: in wet, granite sand in the central Sierra Nevada 
Mts., from Tuolumne Co. to Mariposa Co., California. 
