1924] 
GRANT—A MONOGRAPH OF THE GENUS MIMULUS 159 
M. Langsdorfii var. grandis Greene in Jour. Bot. 33: 7. 1895; 
Jepson, Fl. W. Mid. Calif. 407. 1901, and ed. 2, 379. 1911; 
Abrams, Fl. Los Angeles, 366. 1904, and ed. 2, 886. 1917. 
M. Langsdorfü var. californicum Jepson, Fl. W. Mid. Calif. 
407. 1901, and ed. 2, 379. 1911 
М. Langsdorfii var. guttatus Jepson, Fl. W. Mid. Calif. 406. 
1901, and ed. 2, 379. 1911. 
M. hirsutus Howell, Fl. Northwest Am. 520. 1901. 
M. grandiflorus Howell, Fl. Northwest Am. 520. 1901. 
M. grandis Heller in Muhl. 1: 110. 1904. 
M. equinus Greene, Leafl. Bot. Obs. & Crit. 1: 189. 1905. 
M. paniculatus Greene, Leafl. Bot. Obs. & Crit. 1: 190. 1905. 
M. prionophyllus Greene, Leafl. Bot. Obs. & Crit. 1:190. 1905. 
: M. clementinus Greene, Leafl. Bot. Obs. & Crit. 2: 5. 1909. 
А glabrous or pubescent plant, annual or perennial by stems 
rooting at the nodes, by creeping rootstocks or by stolons; stems 
terete or somewhat 4-angled toward the apex, fistulous, stout 
and erect or weak and more or less reclining, .5-5.5 dm. high, 
mostly simple, commonly glabrous and puberulent or pubescent 
above; leaves variable, mostly rounded-ovate or ovate-oblong, 
sometimes broadly oblong or oblong-lanceolate, .8-15 cm. long, 
6-8 em. wide, many-nerved, coarsely and irregularly dentate, 
often with small projections at the base of the blade, occasionally 
lyrate, basal leaves often spatulate or obovate, the petioles usually 
much longer than the blade, upper leaves sessile, broadly rounded- 
ovate or suborbicular; internodes generally longer than the leaves; 
inflorescence mostly racemose, sometimes solitary or few-flowered, 
the pedicels thick and less than twice as long as the'calyx, rarely 
slender and elongated; calyx glabrous or pubescent, campanulate, 
often tinged or dotted with red, 8-17 mm. long, much inflated in 
fruit, 1-2.5 cm. long, .8-1.5 em. wide, teeth short, broadly tri- 
angular, sometimes mucronate, the upper tooth longer, broadly 
oblong, obtuse; corolla 1—4 cm. long, throat usually spotted with 
red, the ridges densely hairy and nearly closing the throat, 
Margins of upper lip reflexed and much shorter than the spreading 
lower one; style glabrous or puberulent; capsule broadly oblong, 
— at the base or short stipitate; seeds longitudinally 
