Vitis labrusca L Fox grape. 



Swamps and watercourses. 

 Vitis vulpina L. (V. cord i folia Michx.) Frost grape. 



Occasional on banks and in woods. 



TILIACEAE 



Tilia neglecta Spach (T. americana of the 1919 "Flora of the District of 

 Columbia.") White or Quebec basswood. 



Hickey Run valley. 



MALVACEAE 



Abutilon theophrasti Medic Chingma abutilon, piemarker. 



Common in cultivated ground. 



Hibiscus moscheutos L. (H. palustris of the 1919 "Flora of the District of 

 Columbia." not Linnaeus) Common rosemallow. 



Margin of streams and in swamps. 



Hibiscus syriacus L Shrub-althea. 



Established near old dwelling sites, location 17. 



Hibiscus trionum L Flower-of-an-hour. 



Occasional in cultivated soil. 



Malva neglecta Walk. (M. rotundifolia of authors, not Linnaeus) 



Running mallow. 



Occasional in waste places. 



Sida spinosa L Prickly sida. 



Cultivated soil. 



GUTTIFERAE 



Ascyrum hypericoides L St.-Andrews-cross. 



Common in woods and fields. 



Hypericum canadense L St.-Johns-wort. 



Occasional in roadside ditches. 

 Hypericum denticulatum Walt Coppery St.-Johns-wort. 



Frequent in moist soil. 



Hypericum gentianoides (L.) B.S.P. 



(Sarothra gentianoides L.) Orange pineweed. 



Frequent in poor thin soils. 



Hypericum mutilum L. 



Wet soil especially near water. 



30 



