134 Proceedings of Indiana Academy of Science. 
ANACARDIACEAE: 
Rhus typhina L. Dry soil, common. 
Rhus glabra L. With the last. 
Rhus copallina L. Dry hillsides, not common. 
Rhus Toxicodendron L. Thickets and fence-rows, very common. » 
CELASTRACEAE: 
Evonymus atropurpureus Jacq. Thickets, common. 
Evonymus obovatus Nutt. Low ground, not common. 
Celastrus scandens L. Common in thickets. 
STAPHYLEACEAE: 
Staphylea trifolia L. Damp thickets, common. 
ACERACEAE: 
Acer saccharum Marsh. The commonest forest-tree of the district. 
Acer rubrum L. Low woods, common. 
Acer Negundo lL. Low ground, common. 
SAPINDACEAE: 
Aesculus glabra Willd. Rich woods, common. 
Aesculus octandra Marsh. With the last, but less common. 
BALSAMINACEAE: 
Impatiens pallida Nutt. Along streams in rich soil, common. 
Impatiens biflora Walt. With the last. 
VITACEAE: 
Psedera quinquefolia (L.) Greene. Common in thickets. 
Vitis aestivalis Michx. Thickets, common. 
Vitis cordifolia Michx. River-banks, not infrequent. 
TILIACEAE: 
Tilia americana L. Rich woods, common. 
MALVACEAE: 
Abutilon Theophrasti Medic. Common in cultivated ground. 
Sida hermaphrodita (.) Rusby. A single station on river-bank. 
Sida spinosa L. Common in cultivated ground. 
Malva rotundifolia L. Common about dwellings. 
Napaea dioica L. A single station on the bank of Gunpowder Creek. 
Hibiscus militaris Cay. Wet river-shores, not common. 
HYPERICACEAE: 
Hypericum perforatum L. In fields, common. 
Hypericum punctatum Lam. With the last, but less common. 
Hypericum prolificum L. On moraines, rare. 
Hypericum mutilum L. Damp river-shores, common. 
