288 SCBOPHULARIACE^. (FIGWOKT FAMILY.) 



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

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

 tate. — Erom the Colorado mountains to Canada and Florida. 



•*- -t- Not alpine, tall or slender. 

 •*-*■ Leaves undivided : galea bidentulate at tip. 



5. P. crenulata, Benth. A^illous-pubescent, at length glabrate : stems a 

 foot or less high: leaves oblong-linear or narrower, obtuse, 1^ to 3 inches 

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

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

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

 tains. 



•*-*• ++ Leaves all pinnately parted and the lower divided, ample ; divisions lacini- 

 ate-serrate or pinnatijid: spike naked: galea almost straight, ciicullate at 

 summit. 



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

 usually pedunculate spike somewhat pilose : stem I to 3 feet high : bi'acts 

 ovate, acuminate, shorter than the ^^OiVtro : calijx-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. proeera, Gray. Puberulent: stem robust, I ^ to 4 feet high: leaves 

 pinnately divided into lanceolate and irregularly pinnatifid segments : bracts 

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

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

 than the tube: corolla about Ig inches long, sordid yellowish and greenlsh-striate ; 

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

 tains of Colorado and New Mexico. 



H- •\- t- Alpine: stem few-leaved, a span or so high. 



8. P. SCOpulorum, 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 (| 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. RHINANTHUS, L. Yellow-Rattle. 



Herbs, with 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 rii)e rattle in the inflated dry calyx. 



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

 cent above : leases 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. 



