218 BOTANY. 



cle very short ; sepals ovate-lanceolate with a long attenuated acumination, 

 scarcely membranous upon the margin ; anthers and sterile filament strongly 

 hirsute ; otherwise as in P. glaber.—^tems slender, llr-2° high; leaves 2-3' 

 long by 1-2' broad, but slightly glaucous ; the dense panicle but 3' in length. 

 The specimens accord with the original description and figure in the Botani- 

 cal Magazine, and leave no doubt that the species should be maintained. 

 First found in the Rocky Mountains, probably of Wyoming, "Wahsatch Moun- 

 tains, Utah, near Salt Lake City ; 5,000 feet altitude ; May. (772.) 



Pentstemon Fkemonti, T. & G-. Gray, I. c.,p. 60, Pruinose-puberulent, 

 a span high or more ; lower leaves spatulate, the cauline sessile, lanceolate, 

 entire; panicle strict, spikelike, naked, the cymelets approximate, several- 

 flowered, very shortly peduncled ; sepals oblong-ovate, acute, membranous 

 upon the margin ; corolla 9" long, narrowly funnel-form, scarcely bilabiate, 

 the lobes rounded, spreading ; anthers as in P. glaher^ sparingly hirsute ; 

 sterile filament dilated and bearded at apex. — " Uinta Plains," Utah, (Fre- 

 mont ;) Donner Pass, California, (396 Torrey.) 



Var. Paeryi, Gray, Ms. Stems slender, 1-2° high; leaves lanceolate 

 or ovate-lanceolate, 2' long and 4-9" wide ; the panicle few-many-flowered, 

 more or less interrupted, with the peduncles i-l' in length ; flowers purple 

 or occasionally nearly white ; anthers glabrous except along the dehiscence. — 

 Colorado, (Parry.) Toyabe, Diamond and East Humboldt Mountains, 

 Nevada; 6-7,000 feet altitude; July, August. (773.) 



Pentstemon cjseuleus, Nutt. Gratj, I. c, p. 61. A span high, glabrous, 

 or the upper stem and leaves usually minutely pubescent, glaucous ; leaves 

 thick, entire, sessile, linear-lanceolate ; inflorescence thyrsoid, virgate, the 

 peduncles 3-several-flowered, mostly very short; sepals lanceolate, acuminate, 

 the margin usually ciliate, membranous ; the corolla 6" long, somewhat 

 dilated, scarcely bilabiate, with spreading lobes, purple ; anthers glabrous, 

 dehiscing to the summit and becoming expanded, often with short-ciliate 

 margins ; sterile filament usually dilated and yellow-bearded at the apex. — 

 The single specimen in the collection is 1° in height, wholly glabrous except- 

 ing the sterile filament, the larger cauline leaves 2' long and 3-4" broad, the 

 lower ones spatulate ; the lower cymelets on peduncles 1' in length. Colorado, 

 Wyoming, and on the Upper Missouri. Diamond Valley, Nevada, in a grassy 

 subalkaline meadow ; 6,000 feet altitude; July. (774.) 



Pentstemon acuminatus, Dougl. Gray, I c, p. 61. Glabrous and 



