214 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
ZONAL DISTRIBUTION: Upper Sonoran and Arid Transition. 
This differs from S. argophylla only in its glabrous capsules, and intermediate examples 
are abundant. 
7. Salix macrostachya Nutt. Sylva 1: 72. 1845. 
Type Locauity: ‘‘On the banks of the Oregon.’’ Collected by Nuttall. 
Rance: 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. Pl. 2: 1019. 1753. 
Type Locatiry: “Habitat in Suecia septentrionali.” 
Rance: Arctic regions southward to Washington and Connecticut. Europe. 
SPECIMENS EXAMINED: Seattle, Piper 672; Mount Adams, Henderson, August 5, 1892; 
Flett 1348; Henderson in 1883; McAllisters Lake, Henderson, June 22, 1892; White Salmon, 
Suksdorf in 1879. . 
ZONAL DISTRIBUTION: Canadian ? 
This species occurs only in sphagnum bogs. 
9. Salix cordata Muhl. Neue Schr. Ges. Naturf. Berlin 4: 236. 1803. 
TYPE LOCALITY: Pennsylvania. 
Range: British Columbia to New Brunswick, south to California, Colorado, and Pennsy]- 
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, Vasey in 1901; Spokane Valley, Watson 373; Hangman Creek, 
Sandberg & Leiberg 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 & Cotton 109; Conconully, Griffiths & Cotton 318; Riverside, Griffiths & 
Cotton 369. 
ZONAL DISTRIBUTION: Transition. 
10. Salix piperi Bebb, Gard. & For. 8: 482. 1895. 
TYPE LOCALITY: Seattle, Washington. 
Range: Washington and Oregon. 
SPECIMENS EXAMINED: Hoquiam, Lamb 1004; Seattle, Piper in 1888; Olympia, Hender- 
son, August 23, 1892; Yelm Prairie, Piper in 1888; Spokane, Piper, September 3, 1896; 
Pullman, Piper 1777, 3587, 3598; Columbia River, Suksdorf in 1886. 
ZONAL DISTRIBUTION: Transition. 
All the Washington specimens that have been referred to S. lasiolepis bigelovii (Torr.) 
Bebb seem to belong rather to S. prperi, which is perhaps only of subspecific rank. 
11. Salix scouleriana Barratt; Hook. Fl. Bor. Am. 2: 145. 1838. 
Salix flavescens Nutt. Sylva 1: 65. 1842. 
Salix nuttallit Sargent, Gard. & For. 8: 463. 1895. 
Salix capreoides Anders. Proc. Am. Acad. 4: 60. 1858. 
Type Locauity: “North West America,on the Columbia. Dr.Scouler. 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, Suksdorf 24, 25; White 
Salmon, Suksdorf in 1879; Fort Vancouver, Tolmie; Seattle, Engelmann & Sargent, July 18, 
1880; Piper in 1890; without locality, Brandegee 1084; Spokane Valley, Watson 367, 372; 
Spangle, Piper 3012; Wilson Creek, Lake & Hull, September 1, 1892; Skagit Pass, Lake 
