36 C. H. OSTENFELD. M.-N. Kl. 
Although I have no flower-bearing twigs in my material I have no 
doubt as to the correctness of my identification. This bushy willow is so 
characteristic and has been so well described and figured by the authors 
quoted that it is easily recognised; the most prominent marks are: the 
stout and hairy young twigs, the large persistent glandular-serrate stipules 
and the smooth leaves with at the base sparingly glandular-denticulate 
margins. 
22. Salix alaxensis (ANDERS.) CovILLE, Proc. Washington Acad. Sc., 
II, 1900, p. 280; III, 1901, p. 311, pl. 34; S. speciosa var. alaxensis 
ANDERSSON, in DE CANDOLLE, Prodrom., 16, 2, 1868, p. 275. 
King Point. With immature catkins, July 4th, 1906. 
This remarkable willow is an erect bush. It is characterized by its 
leaves which on the under side are covered with a dense white felt, and 
by its felty young twigs. 
Betulaceae. 
Betula L. 
23. Betula glandulosa Micux., Flor. Bor. Amer., II, 1803, p. 180. 
Purren’s list, Arctic coast west of Cape Bathurst. 
King Point. Specimens with young leaves and male catkins in 
flower were collected on June 21th 1906; another specimen with fully 
developed leaves on July roth, 1906. 
The specimens seem to have been decumbent. 
Polygonaceae. 
Rumex L. 
24. Rumex arcticus TRAUTVETTER, in MIDDENDORF, Sibir. Reise, I, 
2, 1856, p. 29; KJELLMAN, Vega Exped. vetensk. arbeten, II, 1883, p. 50; 
R. domesticus, 8, nanus Hooker, Fl. Bor. Am., Il, 1838, p. 129; R. occi- 
dentalis, var. nanus TRELEASE, Missouri Bot. Gard., III, 1892, p. 82. 
King Point. In flower on July 4th, 1906. 
Polygonum L. 
25. Polygonum bistorta L., Sp. pl., 1753, p. 360; P. plumosum SMALL, 
Bull. New York Bot. Garden, Vol. 2, No. 6, 1901, p. (166). 
Puruen's list, Point Barrow to Mackenzie River, Garry Isl. 
