664 



VlTACEAE 



Parthenocissus 



50 



Map 1383 

 Vitis riparia Michx. 



~5o 



Map 1384 



Parthenocissus quinquefolia (LJ Planch 



along streams but it is found also in moist soil along fences and wood- 

 land. 



N. B. to Man., southw. to Va., Ark., and Tex. 



6a. Vitis riparia var. syrticola (Fern. & Wieg.) Fern. (Rhodora 41: 

 431. 1939.) This is merely a more pubescent form occurring on the dunes 

 along Lake Michigan and found once along the Kankakee River in Lake 

 County. 



4915. PARTHENOCISSUS Planch. 



Leaves dull above; tendrils adhesive; inflorescence not dichotomously branched; fruit 

 5-7 mm in diameter ; seed 1-3 ,. 1. P. quinquefolia. 



Leaves glossy above; tendrils not adhesive; inflorescence dichotomously branched; 

 fruit mostly 8-10 mm in diameter; seed 3 or 4 2. P. inserta. 



1. Parthenocissus quinquefolia (L.) Planch. (Psedera quinquefolia 

 (L.) Greene of Gray, Man., ed. 7 and Parthenocissus quinquefolia (L.) 

 Planch, of Britton and Brown, Illus. Flora, ed. 2 as to name but not figure.) 

 Virginia Creeper. Five-leaf Ivy. Map 1384. More or less frequent 

 throughout the state along fences and in clearings and woodland. It is 

 more common in beech and sugar maple and sandy black and white oak 

 woodland. It also is usually frequent in the "flats," if not too wet, and in 

 the Lower Wabash Valley where it reaches its largest size. The reports 

 from the dune area should probably be referred to P. inserta. (See Buhl, 

 Amer. Midland Nat. 16: 251. 1935.) 



N. E. to Wis. and Mo., southw. to Fla. and Mex. 



la. Parthenocissus quinquefolia f. hirsuta (Donn) Fern. (Rhodora 

 41: 664. 1939.) This is a form of the species with the branchlets, 

 tendrils, petioles, and leaves pubescent, at least while young. My speci- 

 mens range from glabrous to pubescent and show all degrees of pubescence. 



