Ampelopsis 



TlLIACEAE 



665 



o 55 



Map 1385 



Parthenocissus vitacea (Knerr) Hitchc. 



50 



Map 1386 



Ampelopsis cordata Michx. 



Since the distribution of the forms shows no geographic or habitat range, 

 all forms are shown on the map as belonging to the species. 



2. Parthenocissus inserta (Kerner) Fritsch. (Jour. Arnold Arb. 20: 

 419. 1939.) (Parthenocissus vitacea (Knerr) Hitchc. and Psedera vitacea 

 (Knerr) Greene.) Map 1385. Rather frequent in the open throughout the 

 lake area, usually on fences. 



Canada and N. E. to Man. and Wyo., southw. to N. Y., Kans., and Tex. 



4916. AMPELOPSIS Michx. 



1. Ampelopsis cordata Michx. (Cissies Ampelopsis Pers.) Heartleaf 

 Ampelopsis. Map 1386. Restricted to the flood plains of the streams of 

 the southern and southwestern part of the state. In cultivation it has 

 proven hardy as far north as Bluffton. In the Lower Wabash Valley it 

 climbs to the tops of the tallest trees and reaches a diameter of 3 inches. 



Va. to Nebr., southw. to Fla. and Tex. 



174. TlLIACEAE Juss. Linden Family 



4964. TlLIA [Tourn.] L. 



Leaves glabrous beneath or with tufts of hairs in the axils of the veins 



1. T. americana. 



Leaves densely white- or gray-pubescent beneath 2. T. heterophylla. 



1. Tilia americana L. (Tilia glabra Vent, of Deam, Trees of Indiana.) 

 American Linden. Basswood. Map 1387. More or less frequent to com- 

 mon in all parts of the state. It prefers a moist habitat and in the lake 

 area it often formed 10-15 per cent of the stand of the original forests. 

 In the hills of the southern part of the state it is often found on the rocky 

 bluffs of streams. 



N. B. to Man., southw. to Ga. and w. Tex. 



