SCEOPHXJLARIACE^ 123 



throat, the lobes rather large and spreading widely, the sterile filament 

 slightly bearded; flower cluster narrow and dense. Dry prairies, Man. and 

 Sask. 



3. P. cristatus, Nutt. . 



Rather stout, 6-15 in. high, villous and viscid towards the upper part of 

 the stem ; leaves entire, the upper linear or lanceolate, somewhat clasping, 

 the lower oblong to spatulate, tapering into petioles; flowers purple or red, 

 almost sessile, the lower lip villous within, th6 sterile filament densely long- 

 bearded along one side, exserted, curled upward. Prairies, Man. and west- 

 ward. 



4. P. acuminatus, Dougl. 



Stem stout, leafy, 6-20 in. high, glabrous and glaucous throughout; 

 leaves entire, the upper lanceolate, clasping, the lower oblong to spatulate, 

 petioled; flower cluster narrow, often one-sided, the sterile filament expanded 

 towards the summit and bearded all around. Dry gravelly slopes, Man.- 

 Alta. 



3. MIMULUS. MoNKET Flower. 



Calyx 5-angled, 5-toothed, the upper the largest; corolla 2-lipped, 

 the upper reflexed, or at least erect, the lower spreading, 3-lobed. 

 Herbs with opposite leaves and showy flowers. 



1. M. ringens, L. 



Glabrous, stem erect, stout, 1-3 ft. high, square; leaves lanceolate to 

 oblong, clasping; flowers large, blue or purple, solitary from the axils of the 

 upper leaves. Wet places, Man. and westward. 



4. ORTHO CARPUS. 



Flower as in Castelleja except that the upper lip of the corolla is 

 no longer than the lower. Annuals with alternate leaves and the 

 flowers in leafy spikes. , 



1. O. Luteus, Nutt. 



Leafy, erect, pubescent; leaves usually linear but often 3-cleft; spike 

 dense with uncolored, usually 3-oleft bracts; flowers yellow. Prairies, 

 Man.-Alta. 



5. PEDICULARIS. Lousewobt. 



Calyx 2-6-toothed, cleft on the lower or the upper side; corolla 

 2-lipped, the upper laterally compressed, curved, sometimes pro- 

 longed to a beak; lower erect, 3-lobed; stamens 4, didynamous, 

 enclosed in the upper lip; capsule many-seeded. Herbs with 

 alternate pinnatifld leaves, and yellowish, reddish, or white flowers 

 in dense terminal spikes. 



