PENNELL—SCROPHULARIACEAE OF THE ROCKY MOUNTAINS. 861 
48. Penstemon haydeni 8S. Wats. 
Penstemon haydent 8. Wats. Bot. Gaz. 16: 311. 1891. ‘First collected by Dr. 
F. V. Hayden, in the Laramie Mountains of Wyoming, during some one of his early 
surveys, without flowers or fruit. * * * Rediscovered during the past season, in 
flower and fruit, by Mr, H. L. Webber, on the Dismal River in Thomas County, Ne- 
braska, about a hundred miles west of the 100th meridian.” Description evidently 
based upon specimen of H. L. Webber, collected in 1891, which is therefore taken as 
type; cotype, collected July 12, 1889, seen in herbarium of Columbia University at 
New York Botanical Garden. The plant of Hayden I have not seen; it is possibly 
not of this species. 
Dry, sandy soil, at altitudes of about 800 meters; Subboreal Zone; flowering from 
early June to early July. Sandhills of western Nebraska. 
NesraskKa: Cherry: 20 miles south of Valentine, Bates (Y). Thomas: Near Plum- 
mer Ford, Dismal River, Rydberg 1506 (U, Y); Dismal River, Webber (Y); 
Halsey, Krautter (P). 
49. Penstemon angustifolius Nutt. 
Penstemon angustifolius Nutt. (in Fraser’s Cat. 1818, nomen nudum), Pursh, Fl. 
Amer. Sept. 738. 1814. “In Upper Louisiana, Bradbury * * * v. 8, in herb. 
Bradbury.’’ According to Bradbury (Travels, 318), ‘‘Near the Mintaree village,’ 
North Dakota. Pursh’s description possibly included also P. gracilis, but Nuttall, 
under account of P. coeruleus, designated which is to be considered typical. Isotype, 
collected by Bradbury in Louisiana, seen in herbarium of Academy of Natural Sci- 
ences of Philadelphia. 
Penstemon coeruleus Nutt. Gen. Pl. 2: 52.1818. ‘‘Hab. On the plains of the Mis- 
souri, near Fort Mandan and the Indian towns.’’ 
Chelone angustifolia Steud. Nom. Bot. 186. 1820-4. Not C. angustifolia H.B. K. 
1817 
Chelone coerulea Spreng. Syst. Veg. 2: 813. 1825. 
Varies irregularly, the leaves linear to lanceolate, the bracts conspicuously elon- 
gate to short, the stem and leaves glabrous to finely puberulent. 
Prairies, at altitudes of 800 to 2,300 meters; Subboreal, southward into Upper 
Sonoran Zone; flowering from mid-May to early July. High plains, westward to base 
of foothills in eastern Wyoming and Colorado. North Dakota and eastern Wyoming 
to southeastern Colorado; including subspecies to northern New Mexico. 
Sourm Daxora: Fall River: Hot Springs, Rydberg 917 (U, Y). Stanley: For 
Pierre, Hayden (A). Todd: Rosebud, E. J. Wallace (R). Washabaugh: Bear 
Creek, Over 2083 (U). 
Nzpraska: Cherry: Fort Niobrara, 7. E. Wilcox (Y); Merriman. Deuel: Rydberg 
275, in part (Y). Hooker: Mullen, Rydberg 1284 (U). Keith: Ogallala, Pennell 
6402(H, K, R,U, Y). Lincoln: Hershey; North Platte, Pennell 6407 (A, F, M, Y). 
Scotts Bluff: Eaglenest Butte, Hayden (Y). Sheridan: Near Hay Springs, Mae- 
Dougal 103 (Y).. Thomas: Halsey (P); Thedford, Rydberg 1284 (U, Y). 
Kansas: County uncertain: Kansas National Forest, @ Allemand (U. 8. Forest 
Service Herb.). : 
Wromrna: Albany: Laramie, Pennell 5872 (Y); Lookout (M); near Prayers Crossing 
(U); Red Buttes (B, Y); Sand Creek (Y). Goshen: Fort Laramie, Nelson 8304 
(U, ¥). Laramie: Cheyenne (U); Corlett, Johnston 1 (M). 
Cotorapo: Boulder: White Rocks, Ramaley (B). Cheyenne: Arapahoe, Mra. 8. B. 
Walker (F). Denver: Denver, Wolf 291 (F, U). El Paso: Garden of the po 
Pennell 5780 (Y); Manitou, Pennell 5787 (Y), 5788; Nob Hill, Pennell 5796 (Y); 
North Cheyenne Canyon, Pennell 5772 (D, Y); South Cheyenne Canyon, Pennell 
6341 (D, P, Y). Gilpin: Tolland (‘‘along R. R. track, probably introduced”), 
