214 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Zonal distribution: Upper Sonoran and Arid Transition. 



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

 are abundant. 



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



Type localiti-: "On the banks of the Oregon." Collected by Nuttali. 

 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 myrtiUoides L. Sp. PI. 2: 1019. 1753. 

 Type uxalitii': " Habitat in Suecia septentrionali." 



Range: Arctic ri^gions southward to Washington and Connecticut. Europe. 



Specimens examined: Seattle, Piper G72; Mount Adams, Henderson, August 5, 1892; 

 Flett 1348; Henderson in 1883; McAllisters Lake, Henderson, June 22, 1892; White Salmon, 

 Suk-sdorfin 1879. 



Zonal distribution: Canadian) 



This species dccurs only in sphagnum bogs. 



9. Salix cordata Muhl. Neue Schr. Ges. Naturf. Berlin 4: 236. 18a3. 

 Type locality: Peniwylvania. 



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 Palouse River, Fawi/ in 1901 ; Spokane Valley, >Fa<w>n 373; Hangman Creek, 

 Sandberg d' T^iherg 29, 6, 11; without locality, Brandegee 1080; Almota, Piper, May 29, 

 1894: Pullman, Piper 3588; Khner 111; Prosser, Griffiths <fe Cotton 14; Wenacho Moun- 

 tains, Griffiths d- Cotton 109; Conconully, Griffiths db Cotton 318; Riverside, Griffiths cfc 

 Cotton 369. 



Zonal di.stribition: Transition. 



10. Salix piperi Bebb, Gard. & For. 8: 482. 1895. 

 Type i/x'ALIT\': Seattle, VVa.shington. 



Range: Washington and Oregon. 



Specimens examined: Hcxiuiam, Z^mft 1004; Seattle, Piper in 1888; 0\ymp\&, Hender- 

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

 Pullman, Piper 1777, 3.587, 3598; Columbia River, Suksdorfin 1886. 



Zonal distribution: Transition. 



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

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



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

 Salix favescens Nutt. Sylva 1: 65. 1842. 



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



Salix capreoides Anders. Proc. Am. Acad. 4: 60. 1858. 



Type locality: "North West America, on the Columbia. Dr.Scovler. 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 7; Larm River, SuJcsdorf 24, 25; White 

 Salmon, Suksdorf'm 1879; Fort- Vancouver, Tolmie; Seattle, Engelmann d; Sargent, Ju\y 18, 

 1880; Piper in 1890; without locality, Brandegee 1084; Spokane Valley, Watson 367, 372; 

 Spangle, Piper 3012; Wilson Creek, Lake <fe Hull, September 1, 1892; Skagit Pass, Lake 



