SCROPHULARIACEAE (FIGWORT FAMILY) 453 



ascending: pedicels 2-3 times as long as the calyx :'Calj^ campanulate; the 

 lobes triangular-subulate, half as long asthe tube or less: corolla piurple, about 

 12 mm. long: capsule globose} 4-6 mm. in diameter, G. tenuifoUa macrophyUa 

 Benth. — ^From the Rocky Mountains to the Mississippi. 



12. MIMULUS L. MoNEEY Flower 



Herbs with opposite leaves and mostly showy yellow or red flowers solitary . 

 and axillary or m a terminal racenie. Calyx prismatic, 5-angled an(l 5-toothed. 

 Corolla tubular to funnelform, with strongly tjijabiate limb or the lobes 

 nearly equal, a pair of bearded ridges extending down the lower side of the 

 throat. Starnens 4, the fifth entirely ivanting, Stigma mostly of 2 flat lobes 

 closing together when irritated. Capsule dehiscent by both sutures or on one 

 side only, or cartilaginous and indehisfi^nt. Seeds m^ny, '^ 



Flowers reddish or purple. 

 Stigmas if unnelform , . . . . . . . . 1. Kinanus. 



Stigmas 2-lipped. 



Flowers small, less than 1 cm. lods . . . , . . 2. M, Tubellus, 

 Flowers' large, 3 cm, or more Ions . . . . ' , . 3. M. Lewisii, 



Flowers yellow; stigmas 2-lipped, i i 



Perennials. 



Calyx oblique, inflated in fruit, the upper tooth largest, 

 ' - Calyx-teeth acute; stem not rooting at the nodi^ • ' • • 4. M. Langsdorfii. 

 Calyx-teeth obtuse; stem rooting at tile nodes , . .. . ' S, M. Geyeri. 



Calyx neither oblique nor inflated, the teeth subequal . . . 6, M. moschatus. 

 Annuals. ..,,,.-, 

 Calyx obliqub; inflated in fniit '. . , ' , . . , ' 7, M; Hallii. 

 Calyx neither oblique nor inflated , ; Si; M. floribundus. 



1. Mimulus nanus Hook. & Am, Bot, Beech. 378, 1840. Glandular or 

 viscid; stem stoutish, « 2-10 cm. high, simple, or branched from- the base: 

 leaves oblong or ovate to lanceolate, entire or obscurely toothed, contracted 

 at.base; the .lower ones petioled, including the petiole 8-25 mm. long: calyxH 

 teeth broadly lanceolate, acute: corolla rose-purple with .jrellow and dark 

 purple in the throat; the;limb 8-12 mm. broad, obviously bilabiate: capsule 

 acimiinate, surpassing the calyx; the valves chartaceous. [M . Tolvviei (Benth.) 

 Rydb.] — Gravelly hills; western Wyoming to California and Washington. 



2. Mimul]is rubellus Gray, Torr, Bot. Mex. Boimd. 116. 1859. Simple or, 

 branched from the base, 5^20 cm. high: leaves spatulateroblong to linear, 

 9-18 mm. long, commonly equaling the pedicels; the lower soidetimes obo- 

 vate or ovate; caljot-teeth short and obtuse: corolla 6-8 mm. long, a third 

 longer to twice the length, of the calyx, rose-color, sometimes yellow vary- 

 ing o^.fshanging.to crimson-purple; the throat abroad and open: stigma bi- 

 lamellar. (ikfV graiiolmdes Rydb. Bull. Torr. Bot. Club 28: 27. 1901,)r-New 

 Mexico to Montana, 



3. Mimulus Lewisii Pjorsh, Fl, Am. Sept. 427. 1814. Pijbescent and more 

 or less viscid; stems nunierous from a perennial root, 3-6 dm. high, simple: 

 leaves oblong-ovate to lanceolalie, denticulate, mostly acute or acuminate, 

 3-7 cm. long: peduncles longer than the leaves: calyx prismatic-campanujate, 

 15-20 mm. long, the triangular teeth shqrt-acuminate and very acute: corolla 

 rose-red or purplish, about 3 cm, long, with broad throat and bilabiate limb, 

 sparingly bearded in the throat: stamens not. exserted: stigmas oblong: 

 capsule oblong; seeds with, a dull and loose coat, longitudinally wrinkled. — 

 Along mountain streams in our range and far westward. 



3a. Mimulus Lewisii tetonensis A. Nels. Bot. Gaz. 34: 31. 1902. Smaller, 

 more granular-glandular: calyx-lobes narrowly linear-acuminate: corolla 

 smaller, white or ochroleucous. — Teton Mountains. 



4i Mimulus Langsdorfii Sims, Bot. Mag. pi. 1501. 1812. Erect perennial 

 with light-green herbage; glabrous or minutely pubescent; stems terete, 2^8 

 dm. higfaj usually paniculately branched: leaves orbicular or ovate; the blade 

 2-5 cm. 'long, dentate or denticulate, -^Often sublyrate, petioled: floral bracts 

 4-12 mm. long, connate-clasping: pedicels slender, 2-3 cm. long: calyx cam- 



