108 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
3. Stipa thurberiana Piper, U.S. Dept. Agr. Div. Agrost. Cire. 27:10. 1900. 
Stipa occidentalis Thurb. Bot. Wilkes Exped. 483. 1874, not Thurb. Bot. King Explor. 
380. 1871. 
Type Locaity: “North Branch of the Columbia.’”’ Collected by the Wilkes Expedi- 
tion. 
Rance: Washington to Nevada and California. 
SPECIMENS EXAMINED: Wenache, Whited 1230; Sunnyside, Cotton 487; North Yakima, 
Leckenby, May, 1898; Henderson 2255; Ellensburg, Piper 2611; North Branch Columbia 
River, Wilkes Expedition; Douglas County, Sandberg & Leiberg 269; Wilson Creek, 
Sandberg & Leiberg, June, 1893; between Coulee City and Waterville, Spillman, May, 1896; 
Spokane, Piper 2613; Coulee City, Piper 3919; Ephrata, Griffiths & Cotton 477; Yakima, 
Griffiths & Cotton 50. 
ZONAL DISTRIBUTION: Upper Sonoran and Arid Transition. 
4. Stipa lemmoni (Vasey) Scribn. U.S. Dept. Agr. Div. Agrost. Cire. 30: 3. 1901. 
Stipa pringlei lemmoni Vasey, Contr. Nat. Herb. 3:55. 1892. 
Stipa lemmoni jonesii Scribn. U.S. Dept. Agr. Div. Agrost. Circ, 30: 4.1901. 
Type Loca.ity: Mohawk Valley, Plumas County, California, according to the label of the 
type specimen. 
RanGeE: Washington to California. 
SPECIMENS EXAMINED: West Klickitat County, Suksdorf 146, 56; Simcoe Mountains, 
Howell 8; Wenache Mountains, Cotton 1263; Perkins Creek, Cotton 1613. : 
ZONAL DISTRIBUTION: Arid Transition. 
5. Stipa williamsii Scribn. U.S. Dept. Agr. Div. Agrost. Bull. 11:45. 1898. 
Type Locauity: Dry soil on the west side of Big Horn Mountain, near Monument 
Spring, Wyo. 
Rance: Washington to Oregon and Wyoming. 
SPECIMENS EXAMINED: Colville Reservation, Griffiths & Cotton 380; Loomis, Griffiths & 
Cotton 328, 335. 
ZONAL DISTRIBUTION: Arid Transition. 
6. Stipa minor (Vasey) Seribn. U.S. Dept. Agr. Div. Agrost. Bull. 11: 46. 1898. 
Stipa viridula minor Vasey, Contr. U.S. Nat. Herb. 3: 50. 1892. 
Type Locatity: Kelso Mountain, near Torrey Peak, Colorado, according to the label 
of the type specimen. 
Rance: Washington to Colorado and Wyoming. 
SPECIMENS EXAMINED: Olympic Mountains, Elmer 1900; Mount Adams, Suksdorf 147: 
Nisqually, Wilkes Expedition; Steptoe, Vasey, June, 1900; Palouse City, F. D. Cloud, 
June, 1895; Pullman, Piper 1762; Brewster, Griffiths & Cotton 258, 259; Colville Reserva- 
tion, Griffiths & Cotton 391; Wenache Mountains, Cotton 1304. 
ZONAL DISTRIBUTION: Transition, mostly Arid. 
7. Stipa nelsoni Scribn. U.S. Dept. Agr. Div. Agrost. Bull. 11: 46. 1898. 
TypE Locauity: ‘‘ Woods Landing, Albany County, Wyoming.” 
Rance: Washington and Oregon to Wyoming. 
SPECIMENS EXAMINED: Rattlesnake Mountains, Cotton 687; Cow Creek, Griffiths & 
Cotton 517; Steamboat Rock, Griffiths & Cotton 433. 
ZONAL DISTRIBUTION: Arid Transition. 
8. Stipa comata Trin. & Rupr. Gram. Agrost. 3: 75. 1842. 
Stipa juncea L. err. det. Nutt. Gen. 1: 58. T8183. 
Stipa capillata L. err. det. Hook. Fl. Bor. Am. 2: 237. 1839. 
Tyre Loca.ity: ‘Carlton House Fort ad fl. Saskatehawan.”’ 
RanGE: British Columbia to Alberta southward to California and New Mexico. 
