POLEMONIACE.E. (POLEMONHM FA.MIIA'.) 2'>] 



about 3-cIef}, occasionally all entire, barely mucronate: corolla-lobes shorter 



than the tube: anthers subsessile in the throat: oculcji 4 to 6 in eacli cell. 



Mountains of Colorado, to Utah and Wyoming. 



Var. capitata, Gray. A dwarf form: leaves nearli/ all entire: thyrsiu 

 short (ifid caiiltiillfnnn : filaments as lung as the anther, — Alpine region, from 

 tlie Black Hills of Soutli Dakota to Colorado. 



12. G. congesta, Hook. Stems erect or spreadimj, 3 to 12 inches high, 

 from a tufted base, hearing single terminal or few and cun/mlMjse cupitulifurm 

 cijmes : leaves with 3 to 7 mucronate divisions, or some of them entire : lol>eH of 

 the corolla nearly as long as the tube, which does not exceed the usually 

 aristulate-tipped calyx-lobes : exserted Jxlamcnts at length as long as tlie 

 anthers : ovules 2 to A in each cell. — From Wyoming and Colorado to Oregon 

 and California. 



Var. crebrifolia. Gray. Depressed; the tufted stems 2 or .3 inches long, 

 croicdid with small entire leaves, and terminated bi/ a single capitate cluster. — 

 Mountains of Colorado and Utah. 



13. G. iberidifolia, Benth. Leaves more rigid and the lol>es cuspidate- 

 tipped, as also the bracts : capitate cymes corymbose : jilaments shorter • ovules 

 solitar/i in each cell. — North Platte, Wyoming, and Nebniska. 



14. G. pumila, Nutt. About a span high: stems looseli/ woolli/, at least 

 when young, lea/}/ : leaves narrowli/ linear, entire or most of them 2 to A-parttd 

 into diverging linear /o6e.s, mucronate : flowers cymulose-glomerate and leafy- 

 bracted : tube of the corolla slender, about twice the length of the aristulate-tip|)ed 

 calijx lobes: f laments slender, inserted iu the simises, exserted, shorter than the 

 lobes of the corolla : ovules about 6 in each cell. — From W. Nebraska to W. 

 Texas and west to the Sierra Nevada. 



15 G. polycladon, Torn About a span high: stems puUnVrnt or 

 sparsel 1/ pubescent, diHuse, i-erg few-leaved : leaves pinnati fid or incised ; the loltes 

 short, oblong, abruptly spinulose-mucronate, those subtending the cymose cluster 

 longer than the flowers : flowers cymulose-glomerate aud leafy-bracted : tul^e 

 of the corolla hardly exceeding the aristulate-mucrouate calgx-lobes: anthers in 

 the throaX, on veri/ short filaments: ovules 2 in each cell. — Bot. Mex. Bound. 

 147. W. Texas to Utah and Nevada. 



I- -I- Flowers thgrsoid-paniculaie, inconspicuousl g bracted or ebracteate, never yd- 



low, ovules 6 in each cell. 



++ Corolla rose-red: anthers subsessile in the throat. 



16. G. Haydeni, Gray. Almost glabrous, slightly ghxndular above, a 

 span or more higli, effusely much branched, somewhat rorvmlto.«ie : radical 

 leaves pinnatifid ; those of the branches linear and subulate, bract-like, entire : 

 calyx-lobes subulate, shorter than the tube: condla-tube h inch long, several 

 times longer than tlie obovate lobes. — Proc. Am. Acad. xii. 79. < Mi the San 

 Juau iu S. W. Colorado or adjacent Utah, Brandegee. 



++ ++ Corolla bluish or white: f laments slender and much exserted. 



17. G. Stenothyrsa, Gray. Stem sim[)le, virgate, verg leafg up to the 

 racemifunn narrow thgrsus: leaves pinnatelg cleft into short nblong luUs : l>ract» 

 small and entire . stamens moderatelg exserted : corolla somewlcit funnclform. 

 white, nearly ^ inch long. — Proc. Am. Acad. viii. 276. Uinta Mountains. 

 Fremont. 



