376 SCROPHULARIACEAE. 



gather when irritated. Capsule Arm-coriaceous, linear-oblong, included in the 

 calyx, with a woody enlargement .-it the pointed apex, opening down the upper 

 Buture only or mainly, the valves spreading out nearly flat and bearing the 

 placentae on their middle. (Creek <li, double, and plakous, a cake, referring 

 to the placentae.) 



1. D. glutinosus Nutt. Bush Monkey-flower. Low shrub, ii to 4 ft. 

 high; haves oblong-lanceolate, revolute, denticulate, glabrous and deep green 

 above, pubescenl beneath with branching hairs; corolla buff or salmon-color, 

 l' L . in. long <>r more, the throat aarrow-funnelform, the lobes emarginate, with 

 more or less irregular margin. 



Common on canon sides everywhere in the Coast Ranges, especially on dry 

 rocky hillsides. May-Sept. Fairly well marked varieties occur in the Sierra 

 Nevada and Southern California. 



9. MIMULUS L. Monkey-flower. 



Serbs with opposite leaves. Flowers mostly showy, yellow, red or white, 

 solitary and axillary, or in terminal racemes. Calyx prismatic, 5-angled, .">- 

 tool hed. Corolla from tubular to funnelform, with strongly bilabiate limb 

 or with merely slight inequality of lobes, a pair of bearded or naked ridges 

 running down the lower side of the throat. Stamens 4. Stigma mostly of 2 

 flat lobes closing together when irritated. Capsule dehiscent by both sutures, 

 dehiscent on one side only, or cartilaginous and indehiscent. Seeds many. 

 (Diminutive of the Latin mimus, a comic actor, on account of the gaping or 

 grinning corolla.) 



A. Flowers red, crimson, or scarlet. 



1. Acaulescent or short-caulescent dwarf annuals, glabrous or nearly so; corolla very large 



for the size of the plant, with long and often filiform tube; capsule 



cartilaginous, indehiscent. 



Corolla-limb broad; upper lip exceeding the lower; tube filiform, 4 to 6 times the length 



of the funnelform throat 1. M. august atus. 



Lower lip of the corolla almost none; upper lip conspicuous, erect; throat narrowly 



campanulate or urn-shaped 2. M. subuniHorus. 



Corolla-limb not very irregular; throat open-funnelform, about half the length of the 

 tube; branches (when manifestly caulescent) decumbent 3. M. tricolor. 



2. Caulescent (as all the following) and erect, usually -ciscid-pubcrulent ; corolla large or 



small; capsule dehiscent. 

 Pedicels 1 or 2 lines long or less; corolla red; capsule dehiscent down the upper suture 

 and a little past the apex (rarely to the base) on the lower suture; herbage more or 

 less glandular- or viscid-pubescent. 

 Corolla-lips strongly unequal. 



Calyx narrowly cylindrical, scarcely plicate, orifice very oblique; lower lip of corolla 



]/ 2 as long as upper 4. tit. kelloggii. 



Similar but smaller; corolla limb 1 1/2 to 2 lines in diameter 5. it. congdonii. 



Corolla-lips little unequal. 



Corolla-tube exserted from calyx. 



Calyx strongly plicate, the orifice very oblique and the broad teeth unequal 



6. M. bolanderi. 



Calyx scarcely plicate, the teeth Bubequal, acute and slender 7. M. layneae. 



olla-tube not exserted from calyx; calyx similar to no. 7 8. it. rattanii 



Pedicels l to 2 ■' \ in. long; capsule dehiscent by both sutures (as in all the following). 



' ilia bright scarlet, strongly bilabiate. 1 ' ., to 2 in. long; robust perennial 



9. M. cardinalis. 

 ilia crimson, scarcely bilabiate; slender annual 10. M. androsaccus. 



B. Flowers yellow or white. 

 Glabrous ot somewhat pubescent, at least not viscid-slimy; Btems erect; Bowers yellow 



Of white. 



11a small, subregular and 



sw-yellow; dwarf annual 11. M. rubellus. 



:ly white Of slightly yellowish; annual 12. M. latidens. 



