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S. diplodictya is a native of eastern Siberia and Alaska, 
occurring especially on the islands. The following speci- 
mens have been seen: 
Auaska: Disenchantment Bay, 1892, Munston, 10. 117, in 
part; St. Paul Island, 1892, /. AZ. Macoun, nos. 135 and 
207; 1897 (16642 and 16643); 1879, Dr. Robert White; 
1871-2, Elliott; St. George, 1892 (wo. 78880) ; Hall Island, 
1891 (no. 18879"); Copper Island, ZL. Stecneger, no. 244. 
g. Sauix arctica Pallas, Fl. Ross. 2: 86; Salix Pallasza 
Anders. in DC. Prod. 16’: 285. 
This has been much confused with .S. anglorum Cham. (.S. 
arctica R. Br.). It has the long and thick catkins of that 
species; but the habit is somewhat different, more bushy, 
sometimes a couple of meters high; the leaves are much 
broader, thicker, and more strongly veined, and the cap- 
sules are more hairy. 
S. arctica is a native of Eastern Siberia and Arctic Amer- 
ica. Itis most common in Alaska, but has been collected 
as far east as Labrador. The following specimens belong 
here: 
EASTERN SIBERIA: Plover Bay, 1865-6, W. HY. Dali; 
Berings Island, 1891, J. Af. Macoun (no. 18884). 
Avaska: Disenchantment Bay, 1891, Funston, no. 177, in 
part; Silver Bow Basin, Grace &. Cooley; Unalaska, Cha- 
misso; 1871-2, M. W. Harrintgon; Langsdorf; 1891, /. 
MM, Macoun, no. 136; (nos. 18886; 18883*) ; St. Paul Island, 
1879, Robert White; 1897, J. MZ. Macoun (16640, 16640a 
and 1888g', also 18882 and 18883*); Hall Island, 1891, ,/. 
M. Macoun (18879; 18887’ and 18887); Attu Island (no. 
18883) ; Kyska, 1873, W. H. Dall; Chilcat, 1883, Meehan. 
Lazsrapor: Hudson Strait, Nottingham Island, 1884, 7. 
Bell (18825*). 
SALIX ARCTICA OBCORDATA Anders. in DC. Prod. 16°: 285. 
Differs from the species in the larger leaves, which are 
obcordate at the apex. Specimens examined: 
Aaska: St. Paul, /. df. Afacoun (16647) ; Atkla Island, 
1881, L. A. Turner; Unalaska, 1871, AZ. W. Harringion. 
