RHINANTHACEAE. 311 



6. CHIONOPHILA Benth. 



1. Chionophila Jamesii Benth. In the higher mountains of Colo, and 

 Southern Wyo. — Alt. 11,000-14,000 ft— Mt. Hayden; near Pagosa Peak; 

 Pike's Peak; Gray's Peak; mountains above Boreas; Massif de I'Arapahoe; 

 Douglass Mountain, Georgetown ; Beaver Creek ; Mt. Bartlett ; Mt. Robinson ; 

 Red Mountain; Ethel Peak. 



7. MIMULUS L. Monkey-flower. 



Calyx oblique, decidedly inflated in fruit ; upper tooth much larger than the 

 rest ; corolla yellow. 

 Calyx-teeth acute ; stem neither rooting at the nodes nor floating. 



Perennials, usually tall and erect, 3-6 dm. high ; corolla 2-3 cm. long ; 

 calyx-teeth not much unequal. 

 Leaves glabrous ; stem pubescent only above. i . M. LangsdorAi. 



Leaves and stem pubescent throughout. 2. M. puberulus. 



Annuals, slender or low ; corolla 2 cm. or less long ; upper calyx-tooth much 

 elongated. 

 Corolla 1.5-2 cm. long, at least twice as long as the calyx. 



3. M. nasutus. 

 Corolla s-8 mm. long, about half longer than the calyx. 4. M. Hallii. 

 Calyx-teeth obtuse ; stem decumbent or floating, rooting at the nodes. 



5. M. Geyeri. 

 Calyx neither oblique nor inflated ; its lobes nearly equal. 



Perennials ; flowers 1-4 cm. long ; sepals linear-lanceolate. 



Tall, with erect stem, 3-10 dm. high ; corolla crimson or rose. 



6. M. Lewisii. 

 Low or slender, weak ; corolla yellow. 7. M. moschatus. 



Annuals; flowers 0.5-1 cm. long; sepals ovate, triangular or broadly lanceolate. 

 Leaves petioled ; blades cordate to ovate-lanceolate. 8. M. Aoribundus. 



Leaves sessile, oblong, lanceolate or linear. 9. M. gratioloides. 



1. Mimulus Langsdorfii Sims. {M. luteus A. Gray; not L. ; M. minor A. 

 Nels.) In swamps and along streams, especially in muddy places, fr^om Ass. 

 and Alaska to N. M. and Calif. ; also in Mex. — Alt. 8000-12,000 ft. — Hahn's 

 Peak; Chambers' Lake; Van Boxle's ranch, above Cimarron; Grayback min- 

 ing camps and Placer Gulch; Manitou; headwaters of Sangre de Cristo 

 Creek ; Ouray ; Twin Lakes ; bank of Michigan ; Cameron Pass ; Twin Lakes ; 

 Four-mile Hill; Gypsum Creek Caiion; Berthoud Pass; Empire; between 

 Sunshine and Ward ; Gray's Peak ; Veta Pass ; Silver Plume. 



2. Mimulus puberulus Greene. In wet places in the mountains of Colo. — 

 Alt. 7500-10,000 ft. — Four miles west of Cameron Pass ; Villa Grove, Steele 

 Caiion; Breckenridge; Dix; Bob Creek, West La Plata Mountains; Red 

 Mountain; Pagosa Springs; west of Ouray. 



3. Mimulus nasutus Greene. In wet places in the mountains from Ida. 

 and B. C. to Colo, and Calif. — Alt. 9000-10,000 ft. — Rico; Ouray; Horsetooth 

 Gulch; Pennock's. 



4. Mimulus Hallii Greene. In wet places in the mountains of Colo.- — Alt. 

 up to 8500 ft. — Georgetown; Piedra; Horsetooth Gulch; gulch west of Pen- 

 nock's. 



5. Mimulus Geyeri Torr. (M. Jamesii T. & G.) In water from Mich, 

 and N. D. to Ills, and Colo. — Alt. 4000-7000 ft. — Boulder; Colorado Springs; 

 Cucharas Valley, near La Veta; Montrose; Spring Canon; New Windsor. 



6. Illimulus Lewisii Pursh. Along streams from Minn., Mont, and B. C. 

 to Colo., Ariz, and Calif. — North Park. 



