119 
(Vicia villosa, continued) 
or all of the variation in New World materials; this 
complex requires further study) 
ssp. villosa 
VIGNA 
¢Vigna unguiculata (L.) Walp., cowpea, black-eyed pea [S: V. 
sinensis (L.) Savi ex Hassk.] (Verdcourt, 1970), p. 950 
WISTERIA, wisteria 
Wisteria frutescens (L.) Poiret [S: incl. var. macrostachya (Nutt. ex 
Torrey & A. Gray) Torrey & A. Gray] (Gillis, 1980), 
p. 904 
FAGACEAE, oak family 
CASTANEA, chestnut 
¢Castanea dentata (Marshall) Borhk., American chestnut, p. 530 
C. pumila (L.) Miller, chinquapin, p. 531 
var. ozarkensis (Ashe) G. Tucker, Ozark chinquapin, Ozark 
chestnut [S: C. ozarkensis Ashe] (Johnson, 1988) 
*var. pumila chinquapin, Allegheny chinquapin (Johnson, 1988) 
FAGUS, beech 
Fagus grandifolia Ehrh., American beech, p. 528 
var. caroliniana (Loudon) Fern. & Rehder [S: incl. f. mollis 
Fern. & Rehder] (the infraspecific taxonomy of this 
species requires further study; Cooper and Mercer 
(1977) suggested recognition of two infraspecific taxa, 
although their morphometric data did not clearly 
support these varieties) 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
