170 
[Assembly 
Betula, (continued.) 
lenta, X. B. carpinifolia, MicJix. Cherry Birch^ Siveet Birch, 
Woods . 
excelsa, Ait. B. lutea, Michx.f. sylv. Yelloio Birch. Woods, 
and borders of swamps . 
nana, L. Dwarf Birch. High mountains of Essex county, 
Alnus, Willd. Alder. 
serrulata, Willd. Common Alder . Swamps and wet thickets , 
March . 
incana, Willd.? Sources of the Hudson, Essex county. 
Sub-Order SALiciNEiE. The Willow Tribe. 
Salix, L. Willoiv . 
§ viminahs, Z/. Osier, Basket Willow. Banks of streams. April. 
Muhlenbergiana, Willd. Dry woods and sandy thickets . April . 
tristis, Muhl. Dry woods. April-May. 
pedicellaris, Pursh. S^vamps, usually on mountains . May . 
conifera, Wa?2^. S. eriocephala, Mzc/?;r..'' Wet thickets. April, 
myricoides, Muhl. Swamps. April. 
prinoides, Pi/r^/z. Swamps. April. Distinct from the preceding? 
discolor, Willd. Low grounds . April . 
longifolia, Muhl. River banks . May . 
§ babylonica, L. Weepijig Willow . About houses . April . 
nigra, M<2r5^. Banks of streams . May, 
longirostris, Michx. Wet thickets and woods . April , 
rigida, Muhl. Borders of swamps . April . 
lucida, Muhl. With the preceding . April . 
cordata, Muhl. Low wet grounds . April . 
grisea, Willd. Low grounds . April . 
§ vitellina, L. About houses, and along brooks . April . 
Tiva-ursi. Pursh ? Mount Marcy . July , Whiteface Mountain, 
Dr. Emmons. 
I have several other undetermined species of Willow, collected 
in this State . 
Populus, L. Poplar. 
balsamifera, Michx. Balsam Poplar, Tacamahac. Shores of 
Lake Champlain. Michx.f. 
^ candicans, Ait. About houses . April . 
