1920] SCHNEIDER, NOTES ON AMERICAN WILLOWS. VIII 225 



identical with alaxensis." The type of longistylis was collected by Wil- 

 liams at the " mouth of Klondike," and after having seen it I am con- 

 vinced that -S. longistylis represents this pruinose form. Therefore I 

 propose the following variety: 



8b. S. alaxensis var. longistylis, var. nov. — S. longistylis Rydberg In 

 Bull. N. York Bot. Card. ii. 163 (1901), non S. longisiyJa Gandogcr, Fl. 

 Eur. XXI. 9G (1890). — A typo nonnlsis differre videtur ramulis novellls 

 laxius vel sparse villosls annotinis glabrls flavo-brunneis et (ut etiam bicnnes) 

 saepissime satis pruinosis. —To this variety which clearly Is connected 

 with the type by many intermediate forms the following specimens should 

 be referred which partly had been referred to typical S. alaxensis by 

 Coville. 



Al.\ska. Glacier to White Pa.ss R.R. Skagway, June 9, 1900, F. A. WaJpoIe (Nos. 

 1071 f., 1077, f., fr.; W.); Muir Glacier, June 9, 1899, Trclcase & Savvdcrfi (No. 

 334^', h. im., 3347 f.; A., M.); June 11, 1899, same coll. (No. 3345, f.;M.); June 12, 

 1899, same coll. (No. 3348, fr. Jm.; M.). Yakutat Bay, IlUden Glacier Inlet, June 

 20, 1899, same coll. (No. 3349, f.; M.); rrince William Sound, Fort ^^ells, June 2G, 

 1899 same coll. (No. 3372, fr. im.; M.); Kodiak Island, near Kodiak ^ illage, July 2, 

 1899, same coll. (No. 3351, st.; M.); Kodiak, July 25, 1904, 0. A. Piper (st.; W.); 

 Alaska Peninsula, Kukak Bay, July 5, 1899, Trelease & Saunders (No. 3350. sL; A., 

 M.); Lake Iliamna region, on open slopes along Iliamna Bay, June 22, ^'^^^^y^'- '^ • 

 Gorman (No. 142, fr.; W.); Anvik, Yukon River, April, without year, J. W. Chap- 

 man (No. 41a or d, f.; G.). Bergman region, Koyukuk River, Arctie Circle 1901. 

 F C Shradcr (f . ; W.). Valley of Kobuk River, 3 miles below Walker Lake, August 

 10 1901, W. C. Mendenhall (st.; W.; "quite common, (i-12 feet high"); about 45 

 miles below Walker Lake, August 17, 1901, same coll. (st., W.; tall slender A\ illow, 

 very common along river, from 12 to 25 feet high). Rampart, June K), 1901 I. 

 Jones (No. 19, fr.; W.); July 20, 1901, samecoll. (No. 1; W.; 20-25 ft., /"X ?^v 

 branches and those near the top of the tree"), same place, July 10. 1903, ^. liolUdc 

 (fr • N ) Dall River, C5 miles above mouth, 1901, C. W. MendenliaU (fr.; \\.); 

 Coidfoot, Jnlv 16, 1904, 0. A. Piper (st.; W.); Fort Yukon, July, 1900, C.C. George- 

 son (No. 18, f.; W.); Port Wells, June 26, 1899, W. U. Brewer & Coe (No. 136, tr. 



""^ Yukon Territory. Ingersoll Islands, moist sloughs and river bottoms. May 28, 

 1899, M. W. Gorman (W. 980, m.; N.). Islands in Klondike River at Dawson, 

 July 15, 1902, J. Macoun (No. 54395, O., st.; G.); Dawson, April 26, 1914, A. tast- 

 wood (No. 12, m. juv.; A.); May 9, 1914, same coll. (No. Ill, m., fr. juv.; A. ;May, 

 1914, same coll. (No. 75, f.; A.; 75a, st.; 76, f.; A.); June 11, 1914 samecoll. (No. 

 179, fr. subniat.; A.); June 30, 1914, same coll. (No. 404, st.; A.; folns satis anguste 

 lanceolalis acuminatis); banks of Klondike River, May 6, 1914 same colk (Nos. 22, 

 24, m.; A., M.; Nos. 23, 25, 26, f.; A.); May 9, 1914, same coll. (No. 39, m ; A. ; 

 Mav 18, 1914, same coll. (No. 74, f.; A); June 11, 1914, same coll. (No. ^S;;;- ^t-; A.j; 

 June 13, 1914, same coll. (No. 215, m.; A.) ; June 17, 1914, sanie coll. (No.s. 288, 288a, 

 st ■ A., M.); June 23, 1914, same coll. (No. 340, st.; A.); Cemetery Hill, May 0, 

 1914, same coll. (No. 143, fr. im.; A.); Bonanza Creek, May 9, 191b ^^me coll. 

 (No. 38, f.: A, M.); Ogilvie, July 8, 1914, same coll. (No. 542, st. A ; folns lanceo- 

 lalis ad 10: 2.5 cm. magnis) ; Coffee Creek, July 9, 1914, same coll. (No ool st A.); 

 Hard Luek Slough, June 10, 1914, same coll. (No. 559, st.; A., M.; folas latis ad 

 12:6 cm. magnis) ; \MiIte Horse, July 12, 1914, same coll. (No. 618, st.; A.); Llew- 

 elljTi Glacier, July 15, 1914, same coll. (No. 666, st. A.). 



In the synonymy of the species I have mentioned with a query var. 



