128 Proceedings of Indiana Academy of Science. 
Salix discolor Muhl. River-banks, common. 
Salix purpurea L: An occasional escape along the river, where it is 
cultivated for basket-work, ete. 
Populus grandidentata Michx. Occasional along streams. 
Populus deltoides Marsh. Abundant along the river. 
JUGLANDACEAE: 
Juglans cinerea L. Rich woods, less common than the next. 
Juglans nigra L. Very common throughout. 
Carya alba (L.) K. Koch. Rich hillsides, common. 
Carya ovata (Mill.) K. Koch. With the last, but less common. 
Carya glabra (Mill.) Spach. Open woods. 
Carya cordiformis (Wang.) K. Koch. Low woods. 
BETULACEAE: 
Ostrya virginiana (Mill.) K. Koch. In woods, not infrequent. 
Carpinus caroliniana Walt. Common in rich woods. 
Alnus rugosa (Du Roi) Spreng. A single specimen on the river- 
shore. 
FAGACEAE: 
Fagus grandifolia Ehrh. Very common in rich woods. 
Quercus alba L. The commonest species and our largest tree. Some 
specimens reached a diameter of eight feet. 
Quercus macrocarpa Michx. In rocky woods. 
Quercus Muhlenbergii Engelm. With the last. 
Quercus rubra L. Common on dry hillsides. 
Quercus palustris Moench. Low ground, not common. 
Quercus velutina Lam. Rich soil, not common. 
Quercus imbricaria Michx. At a few stations in the interior. 
URTICACEAE: 
Ulmus fulva Michx. Rich woods, less common than the next. 
Ulmus americana L. Very common. 
Celtis occidentalis L. Woods, especially along the river, common. 
Cannabis sativa L. Occasional in waste places. Not cultivated. 
Humulus Lupulus L. An occasional escape. 
Morus rubra L. Rich woods, common. 
Urtica gracilis Ait. Common in fence-rows, ete. 
Laportea canadensis (L.) Gaud. Rich woods, common. 
Pilea pumila (L.) Gray. Rich woods, common. 
Boehmeria cylindrica (.) Sw. Low ground along streams. 
Parietaria pennsylvanica Muhl. Shaded banks, common. 
LORANTHACEAE: 
Phoradendron flavescens (Pursh) Nutt. Common, especially on Ul- 
mus and Gleditsia. 
