214 CONTRIBUTIONS FKOM THE NATIONAL HERBARIUM. 



Zonal distribution: Upper Sonoran and Arid Transition. 



This diders from S. argophylla only in its glabrous capsules, and intermediate examples 

 are abundant. 



7. Salix macrostachya Nutt. Sylva 1 : 72. 1845. 



Type locality: "On the banks of the Oregon." Collected by Nuttall. 

 Range: Washington and probably Oregon. 

 Specimens examined: Wawawai, Piper 2916, 3592, 3595. 

 Zonal distribution: Upper Sonoran. 



A very rare species. All the above specimens are staminate, no pistillate bushes having 

 been seen. 



8. Salix myrtilloides L. Sp. PI. 2: 1019. 1753. 

 Type locality: "Habitat in Suecia septentrionali." 



Range: Arctic regions southward to Washington and Connecticut. Europe. 



Specimens examined: Seattle, Piper 672; Mount Adams, Henderson, August 5, 1892; 

 Flett l3iS; Hemlerson in 18S3; McAllisters Lake, fie/iJerson, June 22, 1S92: White Salmon, 

 SuJcsdorfm 1879. 



Zonal- distribution : Canadian ? 



This species occurs only in sphagnum bogs. 



9. SaUx cordata Muhl. Neue Schr. Ges. Naturf. I5i>rlin 4: 236. 1803. 

 Type locality: Pennsylvania. 



Range: British Columbia to New Brunswick, south to California, Colorado, and Pennsyl- 

 vania. 



Specimens examined: Seattle, Piper 559; North Yakima, Henderson, May 26, 1892; 

 Wenache, Whited 1014, 1020; Cottonwood Creek, Vasey in 1901; Thorn Creek, Vasey in 

 1901 ; North Palou.se River, Vasey in 1901; Spokane Valley, Watson 373; Hangman Creek, 

 Sarulberg & Leiherg 29, 6, 11; without locality, Brandegee 1080; Almota, Piper, May 29, 

 1894; Pullman, Piper 3588; Elmer 111; Prosser, Griffiths & Cotton 14; Wenache Moun- 

 tains, Griffiths d; Cotton 109; Conconully, Griffiths cfe Cotton 318; Riverside, Griffiths & 

 Cotton 369. 



Zonal distribution: Transition. 



10. Salix piperi Bebb, Card. & For. 8: 4S2. 1895. 

 Type locality: Seattle, Washington. 



Range: Washington and Oregon. 



Specimens examined: Hoquiam, Lam& 1004; Seattle, Pi/^er in 1888; Olympia, //f/u/er- 

 son, August 23, 1892; Yelm Prairie, Piper in 1888; Spokane, Piper, September 3, 1896; 

 Pullman, Piper 1777, 3587, 3598; Columbia River, SuTcsdorf in 1886. 



Zonal distribution: Transition. 



All the Washington specimens that have been referred to S. lasiolepis higelovii (Torr.) 

 Bebb seem to belong rather to S. piperi, which is perhaps only of suJjspecific rank. 



11. Salix scouleriana Barratt; Hook. Fl. Bor. .\in. 2: 145. 1838. 

 Sedix flavescenx Xutt. Sylva 1: 65. 1842. 



Salix nuttallii Sargent, Gard. & For. 8: 463. 1895. 



Salix capreoides Anders. Proc. Am. Acad. 4: 60. 18.58. 



Type locality: "North West America, on the Columbia. Dr. Scolder. Fort Vancouver. 

 Tolmie.'' 



Range: Vancouver Island to Assiniboia, south to California and New Mexico. 



Specimens examined: Ellensburg, Whited 1267; Thorn Creek, Vasey in 1901; Cotton- 

 wood Creek, Vasey in 1901; Wenache, Whited l; Larm River, Suksdorf 24, 25; White 

 Salmon, Suhsdorf'm 1879; Fort Vancouver, Tolmie; Seattle, Engelmann cf' Sarejent, July 18, 

 1880; Piper in 1890; without locality, Brandegee 1084; Spokane Valley, Fo^soti 367, 372; 

 Spau^h, Piper 3012; Wilson Creek, Lal-e d' //wZ/, September 1, 1892; Skagit Pass, Lake 



