KEY TO THE SPECIES 11 



2. Mimulus Jamesii T. and G. (James's Monkey- flower). Glabrate ; steins 

 spreading or creeping ; leaves sub-orbicular, entire or denticulate ; flowers on 

 slender axillary pedicels, ligbt yellow, about 13 mm. long ; seeds shining and 

 smoothish. In the mountains. 



8. CASTILLEJA (Indian Paint-brush) 



Herbs with alternate entire or cut-lobed leaves, floral leaves usually dilated 

 and colored and more showy than the yellow or purplish spiked flowers, tubular 

 flattened and usually 2-cleft, 2-lipped corolla with tube included in the calyx, upper 

 Up long and narrow and arched and inclosing the 4 unequal stamens and lower lip 

 short and 3-lobed. 



* Leaves and bracts more or less cleft or lobed. 



1. Castilleja coUina Aven Nelson (Wyoming Paint-beush). Finely puberu- 

 lent with some white woolly hairs at the base of the leaves, tufted or many- 

 stemmed from a short caudex, 25 cm. high ; leaves S-4 cm. long, dark green, cleft 

 into linear lobes or broader ; bracts as large as the leaves, more freely cleft, scar- 

 let red ; calyx unequally cleft ; corolla yellowish, galea longer than the tube ; the 

 lip very short, 3-toothed. 



8. Castilleja linearifolla Benth. (Narrow-leaved Paint-brush). More or 

 less pubescent upward, the stems tall and slender, 4-8 dm. high ; leaves linear, en- 

 tire, or cleft into linear lobes, especially above ; bracts 3-parted, red or crimson as 

 is also the unequally cleft calyx ; corolla 4-5 cm. long, slender, its narrow galea 

 curved and long exserted, about equaling the tube. Moist woods and stream 

 banks. 



* * All the leaves entire. 



3. Castilleja Integra Gray (Mexican Paint-brush). Cinerous-pubescent, 

 stoutish, 15-25 cm. high ; leaves all entire, broadly linear, 3-6 cm. long, bracts en- 

 tire or incised, red or rose-color ; corolla about 3 cm. long, its galea shorter than 

 the tube, the lip with 3 short callous teeth. Dry ground. 



9. ORTHOCARPUS 



Much like Castilleja, but the lips of the corolla sub-equal, 



1. Orthocarpus luteus Nutt. (Yellow Obthocabpus). A small pubescent 

 or somewhat viscid annual, 1-2 dm. high ; stem strict : leaves linear or lanceolate, 

 sometimes 3-cleft ; corolla golden yellow, 10-12 mm. long, 3-3 times as long as the 

 calyx ; the lip saccate and the galea obtuse, short, and straight. Plains and 

 mountain valleys. 



10. PEDICULARIS (Lousewort) 



Herbs with pinnately crenate or pinnatifld leaves, those of the flower-cluster 

 bract-Uke, rather large flowers in a spike, calyx variously cleft, strongly 2-lipped 

 corolla, upper lip arched and flattened and often beaked at apex, lower lip 3-lobed 

 and 2-crested above, and 4 stamens under the upper lip. 



1. Fedicularis crenulata Benth. (Meadow Lousewort). At flrst villous- 

 pubeseent. becoming glabrate ; stems numerous, tufted, ascending. 2-3 dm. high ; 

 leaves narrowly oblong, crenate and finely crenulate on the larger crenations ; 

 spike short and dense ; corolla purplish, 15-20 mm. long, the galea short, 2-toothed 

 and somewhat incurved. Wet grassy places. 



