TILIACEAE 439 



4. V. vulpina L. Along rocky river banks: N. S. to Man., Md., 



and Ark. 



Conn. Throughout the state, rare except along rivers and streams. 



N. Y. Rare on L. I., S. I. and the Bronx; upper end of the Hudson 



Highlands northward, rare. 

 N. J. In the drainage of the Delaware, from Camden Co., to 



Sussex, Warren and Morris counties. 

 Pa. Monroe, Northampton and Bucks counties. 



A rare and scattered plant the distribution of which is not suffi- 

 ciently understood. 



5. V. cordifolia Michx. In moist thickets and along streams: 



N. Y. to Neb., Fla. and Tex. 



N. Y. S. I. and L. I.; recorded from Dutchess Co. 



N. J. Throughout the state except in the pine-barrens, there 



wanting; very rare in the region surrounding them. 

 Pa. Luzerne, Northampton, Bucks, Delaware and Chester 



counties. 



2. Parthenocissus Planch. 



1. P. quinquefolia (L.) Planch. In woods and thickets: Que. to 



Man., Cuba, Tex. and Mex. 



Common throughout the range except in the pine-barrens, there 

 apparently sparingly introduced. 



TILIACEAE 

 1. Tilia [Tourn.] L. 



Leaves glabrous or nearly so on both surfaces. 1. T. americana. 



Leaves glabrous above, pubescent beneath. 2. T. Michauxii. 



Leaves glabrous above, silvery-white beneath. 3. T. heterophylla. 



i. T. americana L. In rich woods and along river-bottoms : 

 N. B. to Ga., Man., Neb. and Tex. 



Throughout the range, except in the pine-barrens, there wanting; 

 occasional in the region just west and north of the barrens, otherwise 

 increasing northward. 



2. T. Michauxii Nutt. (T. pubescens of the manuals, not of Ait.). 



In moist woods: Conn, to Fla. and Tex., mostly along the 



coast. 



Conn. Rare near the coast, unknown elsewhere. 



N. Y. Near College Point, L. I. 



N. J. Rare; Hudson, Bergen, Hunterdon and Middlesex counties, 



unknown elsewhere. 



A highly localized species whose distribution is little understood. 



