252 Enumeration of Plants of the Rocky Mountains. 



bipartita, labio superiori latissimo eroso, inferior! multo minori 2-3-par- 

 tito, lobis angustis; stigmate capitate. "Growing in crevices of rocks, 

 on the dividing ridge, at the elevation of 10,000 feet. Very different 

 from Xo. 254, strictly confined to the high alpine region, with glossy 

 foliage and a neat spike of pale blue flowers." Leaves U to 2 inches 

 long, on slender petioles, rather strongly crenate, a little fleshy, very 

 smooth, or early becoming so, as also the lower part of the scape. " Bracts 

 on the upper part of the scape ovate or in the spike lanceolate, sessile, 

 and ciliate with very long woolly hairs. Spike only an inch long in 

 flower, very dense, and very woolly ; flowers nearly sessile ; the corolla 

 larger and more exserted than in aS?. plantaginea. Sepals in flower lan- 

 ceolate and acute or acutish ; but in a fruitino- specimen broader and 

 obtuser. Only two stamens seen, which, as in other species, are almost 

 ■bypogynous. 



256. Chionophila Jamesn, Benth. "On bare or grassy ridges of the 

 snowy range, July. Flowers pale cream-color." A most interesting re- 

 discovery enabling us nearly to complete the account of this well-marked 

 genus. The only known original specimen, and a very scanty one, is m 

 the Hookerian berbariutn, to which it was contributed by Dr. Torrey, 

 mixed with Pentslemon Jamesii, and no specimen is extant in bis own 

 terbarmra. But I presume that Dr. Parry's excellent specimens are of 

 the same species, notwithstanding the striking discrepancies. The calyx, 

 ■which gives the character to the genus, is gamophyllous almost to the 

 summit, with 5 broad and short nearly equal teeth, considerably iim\>U^, 

 thin, membranaceous, or even scarious. Corolla tubular, slightly dilated 

 upwards, neurit/ twice ike length of the calyx, and with a sort oipakU to 

 the loioer lip very densely bearded. The original specimen must be m 

 poor condition if this beard was overlooked. Sterile filament much 

 smaller and shorter than the others, smooth. Stigma small, obtuse and 

 entire. Radical leaves in the larger specimens 2 or 3 inches long, lance- 

 olate-spatulate. Scape 2 to 4 inches high, puberulent. Flowers solitary 

 in the axils of the small floral leaves, on very short and ebradeohti 

 ped>cels. ' ^ 



257. Vide after 261, 262. 



258. Penistemon acuminatus, Dougl. in Bot Reg. t. 1285, var. -?• 

 nitidus, Dougl., Benth. P. Fendleri, Gray in Pacif. T^ R R*>n.. 2. p. l^^, 



^i .",^ wide-spread, variable species, with pale glau^ 

 or bright blue flowers." Benthara describes P.acui 

 rili filiformi glabi 

 published, says ' 



ngure represents a large state of what I must consider the polymorphous 

 species one form of which I published as P. Fendleri, and which is cer- 

 tainly P. nitidus. P. cyananthus. Hook. Bot. Uaa- , which in the BotanT 

 ot the Mexican Boundary I had referred here, is however fi^rured as having 

 tairy anthers, like those of P. glaber, and with such a corolla as the latter 

 P la^J'y ° /"^"^ ^^*^* ^^ ™^^ ^ ^ ^^^^ ^^'^ developed for© o' 

 eJoti-tf"'"'''''?'.^*^^*^ variety of the foregoing, clearly of the sanw 

 Bpecies, "frona plains east of Denver, with numerous bright blue flower» 

 narrow Imear leaves." Similar SDecimena from Eureka. Mr. BoW- 



