1^21] Smiley: Flora of the Sierra Nevada of California 331 



5. MIMULUS 

 Flowers pure yellow. 



Calyx teeth unequal, the upper large and beak-like 1. M. nasutus 



Calyx teeth equal and equally divergent. 



Flowers very long peduncled, solitary or few (not more than 3); leaves 



small (% inch long) and entii-e 2. M. primuloides 



Flowers short or long peduncled in racemes, numerous- leaves larger 

 %-2.5 inches long), usually dentate or deeply lobed. 

 Plants glabrous or essentially so. 



Leaves pinnately parted 3. M. laciniatus 



Leaves dentate or serrate. 



Eootstocks present 4. M. implexus 



Eootstocks wanting 5. M. Langsdorfii 



Plants pubescent. 



Perennial plants; rootstocks with small moniliform tubers. 



6. M. monilifonais 



Annual plants without rootstocks and with nearly sessile flowers 



7. M. mephiticus 



Flowers purple or pink (in M. dejlexus, yellow flowers also occur). 

 Some of the pedicels at least twice as long as the calyx. 



Plants tall (2-3 feet); flowers pink; perennial 8. M. Lewisii 



Plants small (2-8 inches high) ; annuals. 



Corolla large, its tube at least twice as long as the calyx —.9. M. filicaulis 



Corolla small, its tube no longer than the calyx 10. M. Breweri 



All of the pedicels very short or nearly obsolete. 

 Calyx teeth equally spreading. 



Corolla with the purple throat blotched in stripes 11. M. Whitneyi 



Corolla with the throat uniformly colored 12. M. nanus 



Calyx teeth oblique 13. M. leptaleus 



1. Mimulus nasutus Greene, Bull. Calif. Acad., vol. 1, p. 112. 1885. 



M. Langsdorfii var. nasutus (Greene) Jepson, Fl. N.W. Calif., ed. 1, p. 

 407. 1901. 



Type looality. — "In Sonoma County, Calif., at Knight's Valley 

 and Skaggs Springs." 



Bcmge. — Pacific Coast in the Cascade-Sierra Mountains and in 

 the Coast Ranges. Also northern and western Idaho. 



Zone. — Transition and Canadian. 



Specimens examined. — Near Glen Alpine, Tahoe, 6,800 feet, Smiley 

 191 ; Cisco, Dr. Kellogg ; Snow Creek, Yosemite, 7,200 feet, Smiley 

 670 ; marshy meadow near Aspen Valley, Yosemite, 6,400 feet. Smiley 

 912. 



2. Mimulus primuloides Benth., Scroph. Ind., p. 29. 1835. 



Type locality. — "Amer. boreali-occid. " Douglas. 



Range. — Pacific Coast from British Columbia to southern Califor- 

 nia. 



Zone. — Upper Transition and Canadian. 



Specimens examined. — Prattville, Plumas County, Heller and 

 Kennedy 8783 ; Cisco, Miss H. A. Walker 1463 ; about Summit Station, 



