724 SCROPHULARIACEAE 



91. Mimulus Rattanii A. Gray. Rattan's Monkey-flower. Fig. 4611. 



Mimulus Rattanii A. Gray, Proc. Amer. Acad. 20: 307. 1885. 

 Eiinanus Rattanii Greene, Bull. Calif. Acad. 1: 105. 1885. 



Annual herb, pubescent with reflexed glandless hairs beyond which project spreading gland- 

 tipped ones, the stem erect, 0.5-1.5 dm. tall. Leaf-blades lenticular-oblong, obtuse, distally 

 slightly dentate, longitudinally veined, cuneate to sessile bases ; pedicels 1-2 mm. long ; calyx 

 6-8 mm. long, its lobes acute to obtuse ; corolla 8-10 mm. long, purple, externally finely pubescent, 

 internally glabrous, dorsally and laterally deep purple, ventrally so in lines median to each lateral 

 lobe and over entire base of the lowermost lobe, and with 2 narrow greenish yellow ridges with 

 intervening space deep purple, the corolla-lobes rounded; anthers glabrous; stigmas unequal, the 

 lower large; capsule 11 mm. long, exserted, dehiscing deeply dorsally and splitting septum to base. 



On burns, chaparral. Upper Sorwran Zone; Lake and Colusa Counties, central California. Type locality: 

 Colusa County, California. May-July. 



Mimulus Rattanii decurtatus (Grant) Pennell, Notulae Naturae No. 236. 1. 1951. {Mimulus decurtatus 

 Grant, Ann. Mo. Bot. Gard. 11: 288. 1925.) Calyx-lobes blunter, truncately rounded to obtuse. Gravelly moun- 

 tain summits, Transition Zone; Ben Lomond, Santa Cruz Range, Santa Cruz County, middle coastal California. 

 Type locality : Ben Lomond, CaJifornia. June-July. 



92. Mimulus Bolanderi A. Gray. Bolander's Monkey-flower. Fig. 4612. 



Mimulus Bolanderi A. Gray, Proc. Amer. Acad. 7: 381. 1868. 



Eunanus Bolanderi Greene, Bull. Calif. Acad. 1: 105. 1885. 



Mimulus Bolanderi var. brachydontus Grant, Ann. Mo. Bot. Gard. 11: 275. 1925. 



Annual herb, pubescent with reflexed fine glandless hairs beyond which project the spreading 

 gland-tipped ones (the glands relatively large and dark), the stem erect, 2-8 dm. tall. Leaf- 

 blades oblanceolate or narrowly elliptic, acute, distally saliently serrate to denticulate or even 

 entire throughout, longitudinally and pinnately veined, cuneate to sessile bases ; pedicels 2-3 mm. 

 long; calyx 15-17 mm. long, plicate-ridged, narrow intervening surface white and glabrescent in 

 contrast to the green and glandular-pubescent ridge-folds, its lobes acute to acuminate, the up- 

 permost longest and most attenuate, projecting 2-4 mm. beyond lowest pair; corolla 16-22 mm. 

 long, purple, externally finely pubescent, internally glandular-puberulent on all sides, ventrally 

 most so, white, and with purple spots, its lobes truncately rounded ; anthers glabrous ; stigmas 

 rounded, the upper about two-thirds the length of lower; capsule 12-15 mm. long, dehiscing 

 throughout dorsally and splitting septum to base. 



Gravelly or stony soil, granitic or calcareous, Upper Sonoran and Transition Zones; lower slopes of the 

 Sierra Nevada from Calaveras County to Fresno County, and in the Coast Ranges from Mendocino and Glenn 

 Counties to Monterey County, California. Type locality: Clark's Ranch, Mariposa County, California. May- 

 July. 



93. Mimulus platylaemus Pennell. Wide-throated Purple Monkey-flower. 



Fig. 4613. 



Mimulus platylaemus Pennell, Proc. Acad. Phila, 99: 169. 1947. 



Annual herb, pubescent with recurved fine glandless hairs beyond which project gland- 

 tipped ones, the stem erect, 6-12 dm. tall. Leaf-blades narrowly elliptic or lance-elliptic, acute, 

 denticulate-serrate to nearly entire, cuneate to sessile bases; pedicels 2-3 mm. long; calyx be- 

 coming 20-25 mm. long, plicate-ridged, narrow intervening surface white and glabrescent in 

 contrast to the green and glandular-hirsute ridge-folds, its lobes acuminate to attenuate, the 

 uppermost much the longest, lance-attenuate and upcurving, projecting 5 mm. beyond the lowest 

 pair ; corolla 25-30 mm. long, purple, externally pubescent proximally, internally glandular- 

 puberulent on all sides, the throat nearly campanulate, ventrally white and with 2 low ridges, 

 the corolla-lobes rounded ; anthers glabrous ; stigmas ciliolate, the lower twice or thrice length 

 of upper; capsule 18 mm. long, dehiscing distally both dorsally and ventrally, and splitting the 

 septum. 



Moist gravelly or sandy granitic soil. Transition Zones; Sierra Nevada of Fresno County, California. Type 

 locality: 4 miles east of Dunlap, California. June-Aug. 



94. Mimulus brevipes Benth. Wide-throated Yellow Monkey-flower. Fig. 4614. 



Mimulus brevipes Benth. Scroph. Indtcae 28. 1835. 

 Eunanus brevipes Greene, Bull. Calif. Acad. 1: 105. 1885. 



Annual glandular-puberulent to -pubescent herb, the stems erect, 4-10 dm. tall. Leaf-blades 

 elliptic- to linear-lanceolate, acute to attenuate, denticulate to entire, pitmately veined, attenuate 

 to sessile (or the lower slightly petioled) bases ; pedicels becoming 5-10 mm. long ; calyx 

 20-25 mm. long, plicate-ridged, narrow intervening surface pale in contrast to the green glandular- 

 pubescent ridge-folds, its lobes lanceolate, acuminate to attenuate, the uppermost 9-12 mm. 

 long, distally attenuate and upcurved, the lowest pair only 3-5 mm. long; corolla 25-40 mm. 

 long, yellow, externally glabrous, internally maroon-spotted, ventrally most so and pubescent on 

 the 2 ridges and over base of lowermost lobe, the lobes rounded ; anthers glabrous ; stigmas 

 ciliolate; capsule 9-13 mm. long, dehiscing distally both dorsally and ventrally, and splitting 

 septum. 



Sandy, gravelly, or loam soil. Upper Sonoran Zone; coastal hills and mountains from Santa Barbara County, 

 southern California, to northern Lower California. Type locality: presumably near Santa Barbara, California. 

 April-June. 



