]08 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



3. Stipa thurberiana Piper, U. S. Dept. Agr. Div. Agrost. Ciir. 27: 10. 1900. 



Stipa occidtnlalis Thuil). Bot. Wilke.s Exped. 483. 1874, not Tliurl). Bot. King Explor. 

 380. 1871. 



Type locality: "Xuith Branch of the Columbia." Collected by the \yilkes Expedi- 

 tion . 



Range: Washington to Nevada and California. 



Specimens examined: Wenache, Whited 1230; Sunnyside, Cotton 487; North Yakima, 

 Leckenhy, May, 1898; Henderson 2255; Ellensburg, Piper 2611; North Branch Columbia 

 River, Wilkes Expedition; Douglas County, Sandherg c& Leiherg 269; Wilson Creek, 

 Sandberg <£• Leiherg, June, 1893; between Coulee City and Waterville, SpiJhnan, May, 1896; 

 Spokane, Piper 2613; Coulee City, Piper 3919; Ephrata, Griffiths & Cotton 477; Yakima, 

 Griffiths c& Cotton 50. 



Zon'ai> distribution: Upper vSonoran and Arid Transition. 



4. Stipa lemmoni (Vasey) Scribn. U. S. Dept. Agr. Div. Agrost. Circ. 30: 3. 1901. 

 Stipa prlngh-i Jenurioni Vasey, Contr. Nat. Herb. 3:. 55. 1892. 



Stipa lemmoni jonesiiSvrihn . U. S. Dept. Agr. Div. Agrost. Circ. 30: 4. 1901. 



Type locality : Mohawk Valley, Plumas County , California, according to the label of the 

 type specimen. 



Range: Washington to California. 



Specimens examined: West Klickitat County, Suksdo/f 146, .56; Sinicoc Mountains, 

 HoioellS: Wenache Mountains, (7oif/o« 1263; Perkins Creek, C'o/<on 1613. 



Zonal distribution: Arid Tran.sition. 



5. Stipa williamsii Scribn. I'. S. Dept. Agr. Div. Agrost. Bull. 11:45. 1898. 



Type locality: Dry soil on the west side o( Big Horn Mountain, near Monument 

 Spring, Wyo. 



Range: Washington to Oregon and Wyoming. 



Specimens examined: Colville Reservation, Griffiths ct Cotton 390; Loomis, Griffiths cfc 

 Cotton 328, .335. 



Zonal distribution: Arid Transition. 



6. Stipa minor (Vasey) Scribn. U. S. Dept. Agr. Div. Agrost. Bull. 11: 46. 1898. 

 Stipa viridula minor Vasey, Contr. U. S. Nat. Herb. 3: .50. 1892. 



Type locality: Kelso Mountain, near Torrey Peak, Colorado, according to the label 

 of the type specimen. 



Range: Washington to Colorado and Wyoming. 



Specimens examined: Olympic Mountains, Elmer 1900: Mount Adams, Suksdoif 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 d- Cotton 391 ; Wenache Mountains, Cotton 1.304. 



Zonal distribution: Transition, mostly Arid. 



7. Stipa nelsoni Scribn. U. S. Dept. Agr. Div. Agrost. Bull. 11: 46. 1898. 

 Type locality: "Woods Landing, Albany County, Wyoming "' 

 Range: Washington and Oregon to Wyoming. 



Specimens examined: Rattlesnake Mountains, Cotton 687; Cow Creek, Griffiths cfc 

 Cotton 517; Steamboat Rock, Grffiths cfc Cotton 433. 

 Zonal distribution: .'\rid Transition. 



8. Stipa comata Trin. & Rupr. Gram. Agrost. 3: 75. 1842. 

 Stipa juncea L. err. det. Nutt. Gen. 1: 58. 1818. 



Stipa capillala L. err. det. Hook. Fl. Bor. Am. 2: 237. 1839. 



Type locality: "Carlton House Fort ad fl. Saskatchawan." 



Range: British Columbia to Alberta southward to California and New Mexico. 



