FIGWORT FAMILY 711 



53. Mimulus clementinus Greene. San Clemente Monkey-flower. Fig. 4573. 



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



Annual minutely pubescent herb, the stems repent and laxly ascending, 2-4 dm. long. Leaf- 

 blades nearly orbicular or slightly wider than long, simply and sharply dentate, palmately yemed, 

 1.5-2 cm. long, the upper sessile and somewhat cordate; pedicels 15-20 mm. long, mmutely 

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

 shorter, the lowest pair strongly upcurved against the uppermost lobe which is about 2 mm. 

 long; corolla about 5 mm. long, yellow, presumably slightly 2-lipped and probably cleistogamous ; 

 stigmas fimbriolate; capsule 4 mm. long, not dehiscing through septum-apex. 



Wet places. Upper Sonoran Zone; San Clemente Island, southern California. Type locality: San Cle- 

 mente Island. May-July. 



54. Mimulus lyratus Benth. Lyre-leaved Monkey-flower. Fig. 4574. 



Mimulus lyratus Benth. Scroph. Indicae 28. 1835. 



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



Mimulus Langsdorfii var. insignis Greene, Journ. Bot. Brit. & For. 33: 7. 1895. 



Mimulus Langsdorfii var. californicum Jepson, Fl. W. Mid. Calif. 407. 1901. 



Mimulus nasutus var. insignis Grant, Ann. Mo. Bot. Gard. 11: 181. 1925. 



Mimulus guttatus var. lyratus Pennell ex M. E. Peck, Man. PI. Oregon 654. 1941. 



Annual herb, at least distally puberulent or finely pubescent, the stems erect, or decumbent at 

 base, 2-9 dm. tall. Leaf-blades orbicular-ovate, saliently dentate, at least the lower basally lace- 

 rate- or pinnatifid-lobed, palmately veined, 2-5 cm. long, rounded or cordate to petioles (often 

 obscured by extra lobules on petiole), the upper much smaller and often hirsute above; pedicels 

 10-40 mm. long; calyx becoming 12-22 mm. long, strongly plicate-angled, its lobes acute, the 

 lower shorter, the lowest pair eventually upcurved toward the uppermost lobe which is 3-5 mm. 

 long; corolla 15-35 mm. long, yellow, its throat ventrally with 2 widely rounded hirsute and 

 finely brown-spotted ridges that join distally into an often large-blotched palate which closes the 

 orifice, the lower much exceeding the upper corolla-lip ; anthers glabrous ; stigmas fimbriolate ; 

 capsule stipitate, 5-8 mm. long, not dehiscing through septum-apex. 



Wet gravelly or muddy soil, openings in coniferous forest, Upper Sonoran and Transition Zones; southern 

 Oregon to southern California. Type locality: California. March-July. 



55. Mimulus micranthus Heller. Small-flowered Monkey-flower. Fig. 4575. 



Mimulus micranthus Heller, Muhlenbergia 8: 132. 1912. 



Mimulus nasutus var. micranthus Grant, Ann. Mo. Bot. Gard. 11: 182. 1925. 



Annual herb, at least distally minutely or finely pubescent, the stems erect, 0.5-7 dm. tall. 

 Leaf-blades orbicular-ovate, slightly to strongly and saliently dentate, at least the lower basally 

 lacerate- or pinnatifid-lobed, palmately veined, 0.5-5 cm. long, rounded or cordate to petioles 

 (often obscured by extra lobules on petiole), the upper much smaller and usually hirsute above; 

 pedicels 5-30 mm. long; calyx becoming 8-14 mm. long, strongly plicate-angled, its lobes acute, 

 the lower shorter, the lowest pair eventually upcurved toward the uppermost lobe which is 2-3 

 mm. long ; corolla 5-10 mm. long, yellow, its throat ventrally with 2 low rounded pubescent and 

 faintly brown-spotted ridges that join distally into a palate which partially closes the orifice, the 

 lips little spreading and the lower only slightly the longer ; anthers and stigmas together within 

 orifice, evidently self-pollinating; capsule stipitate, 5-6 mm. long, not dehiscing through septum- 

 apex. 



Moist gravelly or muddy soil, along streams or in forest openings, Upper Sonoran and Transition Zones; 

 Siskiyou County to Santa Clara and Mono Counties, California. Type locality: west of Congress Springs, Santa 

 Clara County, California. April-June. 



56. Mimulus arvensis Greene. Blunt-calyxed Monkey-flower. Fig. 4576. 



Mimulus arvensis Greene, Pittonia 1: 37. 1887. 



Mimulus Langsdorfii var. arvensis Jepson, Fl. W. Mid. Calif. 407. 1901. 



Mimulus guttatus var. arvensis Grant, Ann. Mo. Bot. Gard. 11: 174. 1925. 



Annual herb, glabrous below the pubescent to villose bracts, the stems erect, 4-8 dm. tall, 

 simple or somewhat branched. Leaf-blades orbicular-ovate or -oval, dentate with bluntish teeth, 

 proximally lacerate-lobed and often with several pairs of pinnules on petioles, palmately veined, 

 1-6 cm. long, rounded or cordate to petioles, the lower of which are often longer than blades, 

 the upper much smaller and usually villose-hirsute ; pedicels becoming 20-50 mm. long ; calyx 

 becoming 11-16 mm. long, strongly plicate-angled, its lower lobes mucronulate-acute to truncate, 

 only slightly upcurved toward the longest uppermost one which is 1-3 mm. long; corolla 18-21 

 rnm. long, yellow, its throat ventrally with 2 low pubescent brown-spotted ridges that join 

 distally into a low palate which partially closes the orifice, the lips spreading and the lower 

 somewhat the longer; anthers glabrous; stigmas fimbriolate; capsule stipitate, 6 mm. long, 

 not dehiscing through septum-apex. 



Moist banks and fields. Upper Sonoran and Transition Zones; Del Norte County to Santa Clara County, 

 California. Type locality: Belmont, San Mateo County, California. April-May. 



