92 SCROPHULAKIACE^. (fIGWOKT FAMILY.) 



4. P. Lemmoni, Gr. Is smaller and may be distinguished from the last by its 

 yellow bearded sterile filament. 



5. P. heterophyllus, Lindl. Stems 1 to 5 ft. high from a woody base; leaves lan- 

 ceolate or linear; corolla an inch or more in length, ventricose, rose-purple or pmk chang- 

 ing to violet, an inch or more in length. Difficult to distinguish from the next. — Coast 

 Range. 



6. P. azureus, Benth. Usually smaller than the last; the larger corolla azure blue 

 changing to violet; the base sometimes reddish; the expanded limb sometimes ah inch 

 broad. — Sierra Nevada. 



6. MIMULUS, L. 



Calyx mostly plicately O-angled. Corolla funnel-form, with the included or rarely 

 exserted tube bilabiately 5-lobed; the lobes roundish, more or less spreading or the 

 upper turned back; a pair of ridges running down the lower side of the throat. The 

 anthers often approximate in pairs, their cells divergent. The lobes of the stigma com- 

 monly petaloid-dilated or peltate-funnelform. — Flowers axillary on simple peduncles; 

 commonly showy. 



1. M. tricolor, LindL Stem, when beginning to flower, only a quarter of an inch 

 high, at length 3 inches. Corolla about 1^ inches long, with a long exserted slender 

 tube, a short funnelform throat, and similar nearly equal lobes; pink, with a crimson 

 spot on the base of each lobe, a yellow stain along the lower lip. Leaves sessile. 



2. M. Douglasii, Gr. Similar to the last; leaves contracted into a petiole; lower 

 lip of the corolla much shorter than the erect upper one or even obsolete; the throat 

 more ample. Stem from a ^ to 6 inches high. 



3. M. glutinosus, Wendl. A brittle-stemmed shrub, 2 to 6 ft. high, with thick 

 glutinous-sticky leaves and mostly bu£F or salmon-colored flowers, but running into 

 varieties with red, red-brown, or scarlet flowers. 



4. M. cardinalis, Dougl. Villous, with viscid hairs; the large leaves ovate, the 

 upper often connate; corolla frequently 2 inches long; the tube hardly exceeding the long 

 calyx, the limb very oblique, scarlet. — Along water courses. 



5. M. luteus, L. Mostly smooth, varying greatly in size from a foot to even 4 ft. 

 high; leaves ovate oval or cordate; corolla deep yellow, usually spotted within, and 

 the base of the lower lip blotched with brown-purple, from 1 to 2 inches long. Moist 

 ground, 



6. M. inconspicuus, Gr. Smooth, 2 to 7 inches high; the ovate or lanceolate 

 leaves sessile, a half inch or less long; corolla 5 lines long, yellow or rose-color; calyx 

 teeth very short. 



7. M. moschatus, Dougl. (Musk Plant.) Very villous and usually musk -scented; 

 items spreading and creeping; flowers yellow. — Our form is chiefly 



Var. longiflorus, Gr., with very clammy leaves and flowers an inch long, scarcely 

 musky. 



