348 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
27. Penstemon glaber Pursh. 
Penstemon glaber Pursh, F]. Amer, Sept. 738. 1814. ‘In upper Louisiana. Brad- 
bury. * * * yv.s.in Herb. Bradbury.” According to Bradbury (Travels, 319) 
‘‘Alluvia of the Missouri, above the Big Bend,’’ South Dakota. Isotype, labeled 
“Louisiana. Bradbury,” seen in herbarium of the Academy of Natural Sciences 
of Philadelphia. 
Penstemon eriantherus Nutt. (in Fraser’s Cat. 1813, nomen nudum) Gen. Pl. 2: 52. 
1818. ‘“‘P. glabra Pursh * * * Hab. In arid soils near the confluence of Shian 
[Cheyenne] River,’’ South Dakota. 
Penstemon gordoni Hook. in Curtis’s Bot. Mag. 78: pl. 4819. 1847. ‘For the 
opportunity cf figuring this * * * species * * * I am indebted to Edward 
Leeds, Esq., of Manchester, who raised it from seeds given him by Mr. Shepherd of 
the Botanic Gardens, Liverpocl, and which had been collected by Mr. Gordon in 
the valley of the Platte River, on the east side of the Rocky Mountains.”’ 
Gravelly or alluvial banks, at altitudes of 1,200 to 2,100 (3,150) meters; Subboreal 
(Submontane) Zone (probably rarely ascending to Alpine Zone); flowering from early 
June to early August. High plains and foothills in drainage of Missouri River, south 
to Albany County, Wyoming. North Dakota to western Nebraska and central 
Wyoming. 
Soutn Daxora: Custer: Custer, Rydberg 916, in part (U). Fall River: Edgemont, 
Rydberg & Bessey 4910 (F, Y). Lawrence: Deadwood, Rydberg 916, in part (Y); 
Nasby (Y); Spearfish Canyon (F). Meade: Fort Meade, Forwood 287 (U). 
Pennington: Rapid Creek, Over 1842 (U). County uncertain: “Hills of Shian 
River,”’ Geyer 124 (U, Y). 
NEBRASKA: Banner: Lawrence Fork, Rydberg 276 (U, Y). Dawes: Pine Ridge, 
Webber (Y). Morrill: West of Chimney Rock, Engelmann (M). Sioux: War 
Bonnet Canyon, T. A. Williams (Y). 
Wyomine: Albany: McGill Ranch, Nelson 7457 (B). Crook: Devils Tower, L. W. 
Carter (Y); Sundance Mountain (F, M). Fremont: Birds Eye, Nelson 9352 (M, U; 
Y); North Fork of Wind River (U). Johnson: Mouth of Trabing Creek, Willits 408 
(R). Niobrara: U L Ranch, Knowlton 152 (U, Y). Park: Needle Mountain, 
Cary 612(U). Sheridan: Big Horn, Tweedy 2330 (Y), Dome Lake Road,! Nelson 
8541 (R); headwaters of Tongue River (Y). Washakie: Head of Middle Fork of 
Powder River, Goodding 285 (F, M, Y). Weston: Stockade Beaver, Nelson 
9487 (R). 
28. Penstemon alpinus Torr. 
Penstemon alpinus Torr. Ann. Lyc. N. Y. 1: 35. 1824. “Hab. with the preceding 
[‘‘On James (=Pikes) Peak, * * * 10,000 feet above the level of the ocean, near 
the region of perpetual snow,”’ collected in July, 1820, by Dr. Edwin James].’’ Type 
seen in herbarium of Columbia University at the New York Botanical Garden. Name 
unfortunate, as plant rarely reaches timber line and grows mostly upon the lower 
mountain slopes and foothills. Although it does occur on the middle slopes of Pikes 
Peak, it would appear more probable that Doctor James, in making his habitat note, 
confused this plant with the truly alpine P. hallii, so abundant above timber line on 
Pikes Peak; or quite possibly Torrey simply assumed that this came from the same 
altitudes as the plants which precede it in his report. The type, in accordance with 
Torrey’s description, is a quite glabrous plant. 
Chelone alpina Spreng. Syst. Veg. 4: Cur. Post. 235. 1827. 
Penstemon glaber alpinus A. Gray, Proc. Amer. Acad. 6: 60, 1862-3. 
Pensiemon riparius A. Nels. Bull. Torrey Club 25: 379. 1898. ‘Collected at Lara- 
mie [Wyoming] by Mr. Elias Nelson, June 18, 1897, and fruited specimens later in 
the season. Type specimen in Herb. Univ. of Wyoming, no. 3185.” Type seen in 
+ Stem pubescent: forma pubicaulis Pennell. 
