PENNELL—SCROPHULARIACEAE OF THE ROCKY MOUNTAINS. 877 
Parry, 261, 262, and coll. 1862, distributed by Hall and Harbour, 399.’’ Isotype, 
Parry 261, ‘from the headwaters of Clear Creek and the alpine ridges lying east of 
Middle Park, Colorado,’’ collected in 1861, seen in herbarium of the New York 
Botanical Garden. 
Penstmon whippleanus A. Gray, Proc. Amer. Acad, 6: 73, 1862. ‘‘Arroyas in the 
Sandia Mountains, New Mexico, east of the Rio Grande, Dr. J. M. Bigelow, in 
Whipple’s Expedition, Oct., 1853.’ Sterile filament in species slightly barbed at 
apex to nearly or (in type material) quite glabrous. 
Penstemon stenosepalus Howell, Fl. Northw. Amer. 1: 514. 1901. 
Occurs in several apparently distinct color forms, separable only by field observa- 
tion. Through the Colorado and Utah mountains red-violet is prevalent, but high 
on some mountains—e. g., Pikes Peak—a very pale greenish brown form occurs. In 
the Wasatch Mountains I have seen the color lavender, but Watson says that this 
is not the prevalent form. In the Teton Mountains, Wyoming (Nelson 100) a blue 
form exists. 
Wooded or subalpine grassy mountain slopes, at altitudes of (2,200) 2,500 to 3,600 
(3,900) meters; Subalpine and Montane zones, ascending to Alpine Zone; flowering 
from early July to late August. High mountains, from Teton and Wind River 
mountains, Wyoming, southward through Bear River Range, Idaho, through nearly 
all chains of Colorado and Utah to northern New Mexico and northern Arizona. 
Wyomina: Albany, Carbon, Fremont, Lincoln, and Park counties. 
IpaHo: Oneida County. 
CoLoravo: Boulder, Chaffee, Clear Creek, Delta, El Paso (6326), Gilpin (6361, 6362), 
Grand, Gunnison, Hinsdale, Huerfano, Jackson, Lake, La Plata, Larimer, Min- 
eral, Montrose, Ouray (6192, 6202, 6206, 6210, 6244), Park, Routt, Saguache, 
San Juan, San Miguel, and Summit counties. 
Uran: Grand, Piute, Salt Lake (6074, 6104), San Juan, San Pete, Sevier, Summit, 
Utah, and Wayne counties. 
81. Penstemon montanus Greene. 
Penstemon montanus Greene, Pittonia 2: 240. 1892. ‘‘Mr. Tweedy’s n. 866, from 
alpine heights on the mountains of Yellowstone Park, Wyoming.” Isotype, col- 
lected on Mount Norris, in flower, July, 1885, seen in U. 8. National Herbarium. 
Rocky slopes, at altitudes of 2,400 to 3,000 (3,200) meters; Subalpine and perhaps 
neighboring zones; flowering from late July to late August. High mountains, from 
Yellowstone and Wasatch mountains to San Pete County, Utah. In southwestern 
Montana and central Idaho. 
Wyomina: Lincoln: Buffalo Fork, Tweedy 232 (Y), 233 (Y); headwaters of Cliff Creek 
(Y); Hoback River Canyon (U). Park: “Stinking-water,” Parry 204 (F). Yel- 
lowstone National Park: Electric Peak, Rydberg & Bessey 4909 (F, U, Y); Mount 
Norris (U). 
IpAno: Fremont: Mount Chauvet, Rydberg & Bessey 4908 (F, R, U, Y). Franklin: 
Western boundary of Franklin Basin, C. P. Smith 2296 (R, Y). 
Uran: Salt Lake: Little Cottonwood Canyon, Jones (M, U). San Pete: Black Moun- 
tain, Manti, Jones(M). Utah: Silver Lake, American Fork Canyon, Jones(M, U). 
82. Penstemon fruticosus (Pursh) Greene. 
Gerardia fruticosa Pursh, Fl. Amer. Sept. 423. pl. 18. 1814. ‘‘In great abundance 
in the pine forests of the Rocky Mountains. WM. Lewis * * * v. 8. in Herb. 
Lewis.” Specimen (from Lambert Herbarium) in herbarium of Academy of Natural 
Sciences of Philadelphia labeled ‘‘Gerardia suffruticosa n. sp. new species. A small 
shrub from the Rocky Mountain, abundant in piny lands, Jun. 15, 1806.’’ According 
to E. Coues (Proc. Acad. Phila. 1898: 293. 1899), Lewis and Clark were, on June 15, 
