PENNELL—SCROPHULARIACEAE OF THE ROCKY MOUNTAINS. 357 
42. Penstemon grandiflorus Nutt. 
Penstemon grandiflorus Nutt. in Fraser’s Cat. 1813. ‘It was first met with near the 
confluence of the River Platte [with the Missouri], from whence it continues to the 
Andes. [Nuttall.]’ 
Penstemon bradburtt Pursh, Fl. Amer. Sept. 738. 1814. ‘<P. grandiflorum Fraser, 
Catal. 1813.”” Description, but no habitat given. Probable isotype seen in her- 
barium of the Academy of Natural Sciences of Philadelphia. 
Chelone bradburit Steud. Nom. Bot. 186. 1820-24. 
Chelone grandiflora Spreng. Syst. Veg. 2: 813. 1825. 
Plains, at altitudes of 900 to 1,200 meters; Upper Sonoran and Subboreal zones; 
flowering from late May to late June. High plains, within the Missouri drainage, 
occurring probably rarely through eastern Wyoming and eastern Colorado. 
Sours Daxora: Custer: Hermosa, Rydberg 915 (U). Fall River: Hot Springs, C. S. 
Williamson (A). Meade: Fort Meade, Forwood 288 (U). Stanley: Fort Pierre, 
Hayden (A). 
NesraAskKA: Cherry: Fort Niobrara, T. E. Wilcox (Y). Dawes: Belmont (Y); Craw- 
ford, MacDougal 118 (Y). Thomas: Halsey, Krautter (P). 
Wyomina: Sheridan: Little Goose Grade, Nelson 2333, in part (U, Y). 
Co.toravo: ‘‘Eastern Colorado,’ W. J. Laybourn (M). 
43. Penstemon secundiflorus Benth. 
Penstemon secundiflorus Benth. in DC. Prodr. 10: 325. 1846. ‘‘In montibus Scopu- 
losis (Frémont!) * * * (vy. in herb. Torrey).’? Type seen in herbarium of Co- 
lumbia University at the New York Botanical Garden. Lacks satisfactorily opened 
flowers, but leaves and young flowers indicate the plant here considered. The speci- 
men is labeled ‘‘Fremont-2nd. Exped.,’’ ‘‘named by Bentham”; unfortunately the 
number of collection is lost, but Frémont upon his second expedition was in eastern 
Colorado. 
Sagebrush slopes, granitic soil, at altitudes of 1,500 to 2,700 meters; Submontane 
Zone (perhaps entering lower Montane Zone); flowering from late May to early June. 
Foothills and outlying hills in high plains, often abundant, from Albany County, 
Wyoming, southward on the eastern continental slope to Bernalillo County, New 
Mexico. 
Wyomina: Albany: Crow Creek (Y); Laramie, Pennell 5876 (Y); Sand Creek (Y); 
Table Mountain (M, U). 
CoLorabo: Boulder: Boulder, Pennell 5833 (K, P, S, Y); Miramonte (B); Neder- 
land (B); St. Vrain Creek (B); Valmont (F). Chaffee: Near Buena Vista (U, Y); 
Salida, Pennell 6309 (D, R, Y). Clear Creek: Clear Creek Canyon (F, U); 
Empire, Patterson 254 (A, F, M, P, Y); Georgetown (M). Denver: Denver, 
Pennell 5843 (Y); Valverde, Pennell 5839 (B, Y). El Paso: Crystal Park (Y); 
Eastonville (U); Garden of the Gods, Pennell 5779 (Y), 6316 (Y); Manitou, 
Pennell 5782 (Y), 5789 (U, Y); North Cheyenne Canyon, Pennell 5773 (D, F, H, 
M, R, Y), 5776 (Y); Pring (U); South Cheyenne Canyon, Pennell 5793 (Y), 6342 
(F, H, M, P, U, Y); Ute Pass (M); Palmer Lake, Pennell 5808 (Y). Gilpin: 
Lake Ranch (Y); Rollinsville, Overholts (M, Y). Grand: Middle Park, W. A. 
Henry (F,M). Jackson: Camp Creek, Goodding 1457 (B, M, P, U, Y). Jefferson: 
West of Arena, Pennell 6346 (Y); Golden, Pennell 5817 (Y), 6383 (Y); Morrison, 
Pennell 5823 (U, Y). Larimer: Estes Park (U); Fort Collins (Y); Fossil Creek 
(B); Horsetooth Mountain, Pennell 5860 (D, F, H, Y); La Porte (Y); Owl Canyon, 
Pennell 5868 (A, M, R, Y); Ten-mile Creek (B). Park: South Park, Wolf 300 
(A, U, Y). Weld: Carr, Johnston 3 (M). 
