FLORA OF VERMONT 33 



S. nigra, Marsh. Black Willow. Banks of streams and ponds ; common. 



S. nigra. Marsh, var. falcata, Torr. Frequent, with the species. 



S. petiolaris, Smith. Swamps and shores of Lake Champlain ; occasional. 



S. phylicifolia, L. Lake of the Clouds, Mt. Mansfield, Prinrjle. Two forms 

 occur here, the one broad leaved, the other narrow leaved ; the latter 

 may be distinct. 



S. PURPUREA, L. Formerly cultivated for basket rods, now occasional as an 

 escape by water sides. 



S. rostrata, Richardson, (S. Bebbiana, Sargent.) Borders of thickets ; com- 

 mon. 



S. sericea, Marsh. In swamps and along streams ; occasional. 



S. Uva-ursi, Pursh. Summit of Mt. Mansfield, Roblnns. 



S. discolor x humilis, Bebb. Johnson, Grout. 



S. FRAGiLis X ALBA, Bebb. Johuson, Grout. 



S. sericea x cordata, Bebb. Johnson, Grout. 



CUPULIFERAE. OAK FAMILY 



ALNUS. Alder 



A. incana, Willd. Borders of streams ; common. 



A. serrulata, Willd. ( A. rugosa, Koch. ) Moist soil ; frequent. 



A. viridis, DC. (A. Alnobetula, Koch.) Higher mountain summits ; com- 

 mon ; rocky shores Connecticut River, occasional. Burlington Bay, 

 Afrs. F/ynn. 



A. serrulata x incana, Burlington Bay, Jones and Eggleston. 



BETULA. Birch 



B, Icnta, L. Sweet or Black Birch. Rich woodlands ; frequent in western 



Vermont and in the southern Connecticut valley. 



B. lutea, Michx. f. Yellow Birch. Rich cool soils ; frequent, especially on 

 mountain sides. 



B. papyrifera, Marshall. Paper or Canoe Birch. Common. 



B. papyrifera, Marshall, var. minor, Tuckerman. Summit INIt. Mansfield, 

 Eggleston. 



B. populifolia. Ait. White Birch. Frequent in the Champlain valley, less 



so in southern Vermont. 



CARPINUS 



C. Caroliniana, W^alter. Blue Beech. Near streams ; common. 



