SCROPHULARIACE^E. (FIGWOilT FAMILY.) 



ochroleucous or tinged or variegated with purple, less than an inch long : 

 tip of galea emarginate-truncate and below conspicuously cuspidate-biden- 

 tate. From the Colorado mountains to Canada and Florida. 



H- -- Not alpine, tall or slender. 

 H- Leaves undivided: galea bidentulate at tip. 



5. P. crenulata, Benth. Villous-pubescent, at length glabrate : stems a 

 foot or less high: leaves oblong-linear or narrower, obtuse, l to 3 inches 

 long, closely crenate and the broad crenatures minutely crenulate : spike short 

 and dense : corolla whitish or purplish, inch long, like that of the last, but 

 the teeth at the apex of galea less conspicuous. In the Colorado Moun- 

 tains. 



M- -M- Leaves all pinnately parted and the lower divided, ample ; divisions lacini- 

 ate-serrate or pinnatifid: spike naked: galea almost straight, cucullate at 

 summit. 



6. P. bracteosa, Benth. Glabrous, or the dense cylindraceous and 

 usually pedunculate spike somewhat pilose : stem 1 to 3 feet high : bracts 

 ovate, acuminate, shorter than the flowers : calyx-lobes equalling the tube : corolla 

 less than an inch long, pale yellow ; galea much longer and larger than the lip. 

 From the mountains of Colorado and Utah to British Columbia. 



7. P. procera, Gray. Puberulent: stem robust, l to 4 feet high: leaves 

 pinnately divided into lanceolate and irregularly piunatifid segments : bracts 

 lanceolate, caudate-acuminate, mostly longer than the flowers, serrate or denticu- 

 late, or the upper entire: spike 8 to 15 inches long: calyx-lobes much shorter 

 than the tube : corolla about 1 inches long, sordid yellowish and greenish-striate ; 

 galea hardly longer than the ample lip. Am. Jour. Sci. n. xxxiv. 251. Moun- 

 tains of Colorado and New Mexico. 



<- H- - Alpine: stem Jew-leaved, a span or so high. 



8. P. SCOpulomm, Gray. Glabrous, except the arachnoid-lanate dense 

 oblong spike : calyx-teeth triangular- subulate, entire, very much shorter than 

 the tube : galea of the reddish-purple (f inch long) corolla with its somewhat 

 produced apex obliquely truncate, edentulate or produced on each side into 

 an obscure triangular tooth. Synopt. Fl. ii. 308. P. Sudetica, var. Colo- 

 rado Rocky Mountains, at 12,000 to 14,000 feet. 



16. BHUTAN THUS, L. YELLOW-RATTLE. 



Herbs, witb erect stem, opposite leaves, and mostly yellow subsessile flowers 

 in the axils, the upper ones crowded and secund in a leafy-bracted spike. 

 Seeds when ripe rattle in the inflated dry calyx. 



1. B. Crista-galli, L. About a foot high, glabrous, or slightly pubes- 

 cent above : leaves from narrowly oblong to lanceolate, coarsely serrate ; 

 bracts more incised and the acuminate teeth setaceous-tipped : corolla barely 

 half-inch long, only the tip exserted ; transverse appendages of the galea trans- 

 versely ovate, as broad or broader than long : seeds conspicuously winged. 

 Alpine region of the Rocky Mountains southward to New Mexico and far 

 northward. 



