1921] BALL—WILLOWS 431 
leaves, but states that they are more lanceolate than ovate. This statement 
agrees with NuTTati’s figure (Sylva 1:63. #/. 19) and with the form of leaf on 
the cotype specimen, in which the pedicels are very short, scarcely exceeding 
Imm. The following specimens are referred to this variety. 
Utan.— Beaver County, Milford, L. N. Goodding 1020, June 4, 1902 (B, N); 
Juab County, Nephi, C. R. Ball 94, October 8, 1907 (B, N) and (by F. D 
Farrell from same plant) June 19, 1909 (B); San Pete County, common in 
Coal Canyon, San Pitch Mountains, I. Tidestrom 1304, June 24, 1908 (N); 
Carbon County, Indianola, I. Tidestrom 2247, June 17, 1909 (B); Salt Lake 
City, City Creek Canyon, alt. about 6000 ft., M. E. Jones 1702, May 11, 1880 
(N); alt. 5000 ft., 5. G. Stokes, May 1, 1900 (N); P. A. Rydberg 6040, June 9g, 
1905 (N); C.R. Bal Il 1335, 1336 (B, tenes September 11, 1908 (B, N); Farming- 
ton Canyon, near Salt Lake City, Pammel and Blackwood 3618, July 14, 1902 
(B, I); Peterson, Weber River, alt. 6500 ft., Pammel and Blackwood 3903, 
July 18-24, 1902 (B, I); Ogden Canyon, Ogden, A. E. Hitchcock 1481, August 
19, 1913 (N); Ogden, alt. 4300 ft., M. E. Jones 6552, May 20, 1889 (N). 
Wyominc.— Sweetwater County, Bush Ranch, A. Nelson 7103, June to, 
1900 (B). 
IpaHo.—Bear Lake County, Montpelier, J. F. McBride 17, May 15, 1910 
(G, N with specimen of S. caudata); Canyon County, along the river, Emmett, 
alt. 2200 ft., J. F. McBride 790, April 29, 1911 (N). 
OrEcon. —Blue Mountains, head of Otis Creek, W. C. Pusch 1645, 
eee 15, 1897 (N); Sherman County, Moro, C. -s Bail ness August 4, 1914 
B,N), C. R. Ball 2010, 2011, June 29, 1915 (B, C, F, G,I,N, R); Grass Valley, 
C. R. Ball 2012, June 30, 1915 (B); Des(e)hutes Rives T hos. Howell, May 
1886 (N). 
NeEvapa.—Humboldt eral Santa Rosa National Forest, mouth of 
Hansen Creek Canyon, alt. 4800 ft., B. S. Martineau 26 (in part), May 7, 
191s (B, Fs). 
Salix monochroma, n. sp.—S. cordata in part, of various authors 
treating of the Pacific northwest, not of Muhl.—S. pyrifolia as 
interpreted by BALL, in CouLTER and Netson, New Man. Rocky. 
Mt. Bot. p. 133. 1909, not of ANDERSSON, 1867, or of SCHLEICHER, 
1815.—S. rotundifolia Nutt. N. A. Sylva 1:75. 1842, not 
TRAUTVETTER, 1832.—Low shrub, with slender, glabrous, shining 
branchlets and small stipules: leaves obovate-oval or ovate, short- 
acuminate, 4-8 cm. long, crenulate-serrulate, thin, deep green and 
glabrous on both sides: aments appearing with the leaves, pistillate 
short-pedicelled lax; scales lanceolate-oblong, acute, dark, thinly 
pilose; capsule lanceolate, acute, 5-6. 5 mm. long, glabrous; pedicel 
2-4 mm. long, style about 0.5 mm. long; staminate ament sessile, 
slender; stamens 2, filaments glabrous, more or less united. 
