1919] SCHNEIDER. NOTES ON AMERICAN WILLOWS. V 11 



said to be *' abundant " by Sargent (Man. 171). This is probably a mis- 

 take, as indicated above. 



I am not sure whether the western forms really represent t;^T)ical S, 

 amygdaloidesy^ but there is certainly a form with puberulous or subtoraentose 

 young parts that deserves a special mention. Ball (1909) says that '' a form 

 with very narrow leaves, scarcely 1 cm. wide, is found on the high plains 

 east of the Rocky Mountains." I am not yet sure to which form he refers, 

 and I wish to state that the western forms need a much closer study than 

 I have been able to devote to them. It may be that the following form 

 ought to be regarded only as a form of a western variety, and that even 

 within the range of typical amygdaloides another corresponding form may 

 occur. I only wish to call attention to this western form in proposing the 

 name S. amygdaloides f. pilosiuscula, forma nov. : a typo ut videtur tantum 

 rccedit ramulis foliisque novellis pilosiusculis (? rarius ramuUs petiolis foli- 

 isque ad costam breviter subtomentosis; confer no. 902 Gooddingii); ra- 



muHs annotinis biennesque satis (ut fere in omnibus aliis speciminibus 

 occidentalibus) flavescentibus, foliis superne storaatibus vulgo numerosiori- 

 bus instructis, stipulis plus minusve acutis, amentis saepissime densioribus, 

 fructibus magis approximatis. — I refer to f . piloshiscula the following 

 specimens : 



Nevada, Washoe County : Wadsworth, alt. 1265 m.. May 7, 1909, A. A. Heller 

 (No. 10403, m., paratype; A., M.); sloughs between Pyramid and Winnemucca 

 Lakes, ah. 1200 m., June 2, 1913, P. B, Kennedy (No. 1997, m., fr., im., G., Reno; 

 foHis normahbus valde juvenihbus; forma in^herbariis sub nomine inedito *S. washo- 

 ensisW, W. R. distributa). Churchill County: Carson Sink Region, alt. 1265 m., 

 July 15, 1908, P. B. Kennedy (No. 1776, fr. type; A., M., Reno). 



Utah, Davis County: Farmington, June 11,1908, J, Clemens (fr. juv.; G.). 

 Salt Lake County: Salt Lake City, alt. 1300 m.. May 12, 1880, M, E. Jones 

 (No. 1711, m.; A.); May 22, 1887, M, E, Jones (m., f.; A.); City Creek Canon, 

 Wasatch Mts., 1500 m., April 20, 1900. S. G. iS/oto (m., f.; St.). Beaver County: 

 Milford, along a bottom, June 4, 1902, L. N. Goodding (No. 1019, m., f.; A., M.). 

 Washington County: Santa Clara Creek, May 20, 1902,L,iV. Goodding (No. 902, 

 fr. im.; M.; specimen a cL Ball pro S. laevigata determinatum, sed ab hac species 

 satis diversum et magis ad f. pilosiusculam accedens; forma satis incerta ramulis 

 novellis et partim annotinis petiolis costaque foliorum superne tomentellis, amentis 

 laxis fructibus in pedicello sparse pilosis, foliis normalibus nondum satis evolutis). 



Colorado. Montrose County: Naturita, ditch bank, alt. 1620 m.. May 26, 

 1914, E. Payson (No. 354, m., 355, f.; M.) ? Clear Creek County: Clear Creek 

 Valley, May 27, 1916, A. Eastwood (Nos. 5390, f., 5391, m.; A.). Larimer County: 

 without exact locality, foothills, alt. 1800 m.. May 26, 1897, C, S. Crandall (No. 12, 

 m., fr. juv.; M.; amentis fructiferis sublaxioribus); Fort Colliiis, alt. 1500 m.. May 

 15, 1890, C. F. Baker (m.; M.). Weld County : Greely, June 24, 189G, L. IL Pammel 

 (No. 205, fr.; M.; parcissime pilosa); Evans, 1909, E, L. Johnson (No, 541, m., 

 f.; M.). Morgan County: Fort Morgan, June 23, 1896, L. IL Pammel (No. 206, 

 St.; M.). Las Animas County: bank of Purgatoire River near Trinidad, 2000 m.. 

 May 13, 1892, C. S. Crandall (No. 9, m., f.; C). 



^ Professor J. S. Jack collected a very vigorous form at Holland near Pullman, Wash., 

 Aug. 31, 1918 (No. 1241, st.; A.), that looks much like vigorous forms collected by Glatfelter 

 near St, Louis, Mo., but in the western form the stipules are decidedly acute, not rounded as 

 in the type. The young shoots and leaves are puberulous. 



