712 SCROPHULARIACEAE 



57. Mimulus guttatus Fischer. Common Large Monkey-flower. Fig. 4577. 



Mimulus guttatus Fischer ex DC. Cat. Hort. Monsp. 127. 1813. 



Mimulus guttatus var. grandis Greene, Man. Bay Reg. 277. 1894. 



Mimulus Langsdorfii Donn ex Greene, Journ. Bot. Brit. & For. 33: 6. 1895. 



Mimulus Langsdorfii var. guttatus Jepson, Fl. W. Mid. Calif. 406. (April) 1901. 



Mimulus grandiflorus Howell, Fl. N.W. Amer. 520. (November) 1901. 



Mimulus eguinus Greene, Leaflets Bot. Obs. 1: 189. 1906. 



Annual or perhaps sometimes biennial herb, glabrous below the finely glandular-pubescent 

 inflorescence, the stems erect or decumbent, 4-10 dm. tall, sometimes stoloniferous. Leaf -blades 

 oval, rounded, sinuately denticulate or sometimes pinnatifid-dentate at base, 1 .5-9 cm. long, 

 the lower rounded to petioles sometimes longer than blades, the upper sessile ; pedicels becoming 

 20-60 mm. long; calyx becoming 18-22 mm. long, strongly plicate-angled, its lobes_ acute, the 

 lower shorter, the lowest pair eventually upcurved toward the uppermost lobe which is 4-6 mm. 

 long ; corolla 30-45 mm. long, yellow, its throat ventrally with 2 large hairy brown-spotted ridges 

 that join distally into a palate nearly or quite closing the orifice, the lower lip longer and with 

 deflexed-spreading lobes ; anthers glabrous ; stigmas fimbriolate ; capsule stiped, 10-12 mm. long, 

 not dehiscing through septum-apex. 



Along streams and elsewhere in wet places. Lower Sonoran Zone to Transition Zones; Alaska to southern 

 California. Type locality: Unalaska, Alaska. March-Aug. 



Mimulus guttatus subsp. litoralis Pennell, Proc. Acad. Phila. 99: 165. 1947. Plants usually stouter, 

 distally more softly pubescent, especially on calyces; leaf-blades wider, as wide as or wider than long and 

 cordate; corolla 30-45 mm. long, relatively wide. Beaches and bluffs, on or near the coast. Transition Zones; 

 Lincoln County, Oregon, to San Mateo County, California. Type locality: beach near Otter Rock, Lincoln 

 County, Oregon. 



Mimulus guttatus var. pubdrulus (Greene) Grant, Ann. Mo. Bot. Gard. 11:170. 1925. (Mimuhis 

 hirsutus Howell, Fl. N.W. Amer. 520. 1901; M. paniculatus Greene, Leaflets Bot. Obs. 1: 190. 1906; M. 

 puberulus Greene ex Rydb. Fl. Colo. 311. 1906; M. procerus Greene, Leaflets Bot. Obs. 2:6. 1909; M. petio- 

 laris Greene, op. cit. 7.) Plant distally often more strongly glandular-pubescent; leaf-blades elliptic-oblong to 

 oval, 1 to 2 times as long as wide; corolla 20-30 mm. long; fruiting calyx 13-18 (-20) mm. long. Along 

 streams and elsewhere in wet places. Upper Sonoran and Transition Zones; British Columbia to northern Lower 

 California, east to Montana, South Dakota, Colorado, New Mexico, and Chihuahua, the prevalent inland plant. 

 Type locality: Pagosa Springs, Colorado. 



Mimulus guttatus subsp. Scouleri (Hook.) Pennell, Proc. Acad. Phila. 99: 166. 1947. {Mimulus Scouleri 

 Hook. Fl. Bor. Amer. 2: 100. 1838.) Stem 6-8 dm. tall, freely stoloniferous; leaf-blades nearly oblong; corolla 

 about 25 mm. long; fruiting calyx 13-14 mm. long. Wet soil, Transition Zones; along lower Columbia River in 

 Clatsop Ciounty, Oregon. Type locality: Columbia River. Inadequately known. 



Mimulus guttatus subsp. arenicola Pennell, Proc. Acad. Phila. 99: 166. 1947. Plant low, 0.5-2 dm. tall, 

 much-branched, the inflorescence less pubescent; leaf-blades small, 1-2 cm. long; corolla 25-35 mm. long. Wet 

 sandy beach and hollows among dunes, Transition Zones; Monterey County, California. Type locality: Pacific 

 Grove, Monterey County. June-July. 



58. Mimulus laxus Pennell. Weak-stemmed Large Monkey-flower. Fig. 4578. 



Mimulus laxus Pennell ex M. E. Peck, Man. PI. Oregon 655. 1941. 



Annual herb, glabrous below the finely glandular-pubescent inflorescence, the stems erect, 

 2^ dm. tall, often somewhat stoloniferous. Leaf-blades ovate-oval to circular, rounded or ob- 

 tuse, irregularly denticulate, proximally cordate and usually with slender deflexed lobes, 1-3 cm. 

 long, the lower on petioles often longer than blades, the upper sessile; pedicels becoming 1-3.5 

 cm. long; calyx becoming 10-15 mm. long, strongly plicate-angled, its lobes acute, the lower 

 shorter, the lowest pair eventually upcurved toward the uppermost lobe which is 1-3 rnm. long; 

 corolla 18-25 mm. long, yellow, its throat ventrally with 2 large hairy brown-spotted ridges that 

 join distally into a deeper yellow palate nearly closing the orifice, the lower lip longer and with 

 deflexed-spreading lobes ; anthers glabrous ; stigmas fimbriolate ; capsule stiped, 6 mm. long, not 

 dehiscing through septum-apex. 



Gravelly shores and rock ledges, Transition Zones; western Washington to central California. Type locality: 

 Elk Lake, Deschutes County, Oregon. June-July. 



59. Mimulus platycalyx Pennell. Wide-calyxed Monkey-flower. Fig. 4579. 



Mimulus platycalyx Pennell, Proc. Acad. Phila. 99: 167. 1947. 



Annual herb, glabrous below the finely pubescent inflorescence, the stem erect, 0.3-1 .3 dm. 

 tall. Leaf-blades orbicular-ovate, acute or acutish, sinuately dentate, palmately 5-veined, 0.8-1.2 

 cm. long, slightly cordate to petioles shorter than blades, the upper sessile; pedicels becoming 

 10-15 mm. long, finely glandular-pilose; calyx becoming 9-14 mm. long, strongly plicate-angled, 

 much-distended about fruit, its lobes acute, the 4 lower lobes very short and the lowest pair up- 

 curved at tip, the uppermost prominent, at least 2 mm. the longest ; corolla 20 mm. long, yellow, 

 its throat ventrally deeper yellow and brown-spotted, with 2 large densely pubescent ridges that 

 join distally into a palate nearly closing orifice, the lower lip longer and with deflexed-spreading 

 lobes ; anthers glabrous ; stigmas finely fimbriate ; capsule stipitate, not seen fully mature. 



Moist granitic soil. Transition Zones; southern Sierra Nevada from Mariposa County to Tulare County, 

 California. Type locality: Wawona, Mariposa County, California. May-Aug. 



60. Mimulus cordatus Greene. Pale-fruited Monkey-flower. Fig. 4580. 



Mimulus cordatus Greene, Leaflets Bot. Obs. 2: 5. 1909. 



Annual or biennial herb, glabrous below the finely glandular-pubescent inflorescence, the 

 stems erect or ascending, 2-8 dm. or more tall. Leaf-blades ovate to oval, rounded, sinuately 

 denticulate, 5-7-veined. 2-8 cm. long, the lower rounded or cordate to petioles as long as or 

 longer than blades; pedicels becoming 5-30 mm. long; calyx becoming 11-14 mm. long, strongly 



