1918] SCHNEIDER—SALIX 13 
TYPE Locatity.—Southeastern Nevada, Clark County, Muddy Creek 
(coll. Goodding, no. 689, f.; forma satis abnormalis ab insectis infecta). 
RANGE.—California, southeastern Nevada, Arizona, southwestern New 
Mexico (probably also east of the Rio Grande and even in southern Colorado), 
and northern Mexico (Chihuahua, Sonora, northern Sinaloa, northern Lower 
California). 
SPECIMENS EXAMINED (from Mexico).—Lower California: Gardner’s 
Laguna, April 21, 1894, L. Schoenfeldt (no. 2895, st.; W.); Seven Wells, on the 
Salton River, April 8, 1894, E. A. Mearns (no. 2869, m.); along Hardy River, 
April 3, 1905, D. McDougal (no. 100, f.; N.; “small tree’’).—State of Sonora: 
Sonora shore of Colorado River near International Boundary, March 27, 1905, 
D. McDougal (no. 90,m.; N.; ‘tree 30-40 ft.’’); Colonia Diaz, May 29, 1894, 
E. A. Mearns (no. 2840, m.; G., M., N., W.); La Chumata, alt. 1330 m., May 
29, 1905, W. W. Brown (st.); vicinity of Magdalena, April 25, roto, J. NV. 
Rose, P. C. Standley, and P. G. Russell (no. 15113, fr.; W.); vicinity of Hermo- 
sillo, bed of Rio de Sonora, March 5, 1910, same coll. (no. 12391, fr.; N., W 
“5 ft. or less”; forma porro observanda pedicellis fructuum subbrevioribus) ; 
along irrigating ditches, March 7, 1910, same coll. (no. 12501, m., f.; st 
forma porro observanda); vicinity of Navojoa, March 21, 1910, same coll. 
(no. 13156, fr.; N., W.; ut praecedens).—State of Chihuahua: along the Rio 
Grande near Ciudad Juarez, 1911, E. Stearns (fr.; N.; mixed with male 
S. exigua, var. stenophylla); vicinity of Chihuahua, alt. about 1300 m., April 8—- 
27, 1908, E. Palmer (nos. 41, f., 42,m.; N.; forma porro observanda); Santa 
Eulalia Mts., April 1885 (3 ?), Wilkinson (m.; W.); Lake Palomas, Mimbres 
Valley, April 14, 1892, E. A. Mearns (no. 184, f.; W.; also no. 183 in 1892 
without exact locality, fr.; N.).—State of Sinaloa, vicinity of San Blas, March 
24, 1910, Rose, Standley, and Russell (no. 13415, f., fr.; N., W.). 
-R. BALL, in describing S. Gooddingii from rather poor female specimens, 
mistook it for a species of sect. LoNGIFOLIAE. Later he recognized, as he has 
told me, the identity of his species with S. migra var. vallicola Dudl. (S. valli- 
cola Britt.). According to the international code the name S. Gooddingii has to 
be used if this willow is considered a distinct species. It certainly is a good 
species, and very different from the eastern S. nigra, which always has more or 
less reddish brown or purplish branchlets. Otherwise, the western species is 
closely related to S. nigra, and is clearly a member of the same section. 
Sect. II. Trranprar Dumortier in Bijdr. Natuurk. Wetensch. 
1:58 (Verh. Gesl. Wilgen 17). 1825; Borrer in Hooker, Brit. Fl. 414. 
1830; in Loud., Arb. Frut. Brit. 3:1496. 1838, excl. S. lucida.— 
Sect. AMyGDaALInar W. D. Koch, Salic. Eur. Comment. 17. 1828, pro 
parte; Andersson in K. Sv. Vet.-Akad. Handl. 6:19 (Mon. Salic.). 
1867, pro parte; in DC. Prodr. 167:200. 1868, pro parte; Ball in 
Coult. and Nels., New Man. Rocky Mt. Bot. 129. 1909, excl. S. nigra. 
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