186 
Bulletin Wisconsin Natural History Society. [Vol. 5, Xo. 4. 
S. tristis Ait. Dwarf Gray Willow. 
Reported by J. A. Brandon in 1900. Not reported since. 
S. Candida Flueg-ge. Hoary Willow. 
Reported from Greenfield and Oak Creek. Very rare, if not 
now extinct in county. 
S. viminalis L. Osier Willow. 
In Wheeler's list. Probably confused with the following 
species. 
S. purpurea L. Purple Willow. 
Escaped from cultivation. Locally common throughout 
county. 
JUGLANDACE^. 
Juglans nigra L. Black Walnut. 
Formerly abundant. Not common now. 
J. cinerea L. Butternut. 
Throughout county. Occasional. 
Carya cordiformis (Wang.) K. Koch. Hicoria niinimii (Marsh.) 
Britton. Bitter-nut. Throughout county. Not common. 
C. ovata (^lill.) K. Koch. Hicoria ovata (Mill.) Britton. Shag-bark 
Hicory. Throughout county. Fairlj^ common. Given in 
^Mieeler's list as C. alba Nutt. 
C. glabra (Mill.) Spach. Hicoria glahra (^Nlill.) Britton. Pignut, 
Reported from Wauwatosa. Probably planted, 
BETULACE^, 
Carpinus caroliniana Walt, Blue Beech, Hornbeam. 
Throughout county. Occasional. 
Ostrya virginiana (Mill.) K. Koch, Iron-wood. Hop-hornbeam. 
Throughout county. Common. 
Corylus americana Walt. Hazel-nut, 
Common, 
C. rostrata Ait. Beaked Hazel-nut. 
Not so commo as C, americana,. 
