Grape Growing
   Article on the history of human use of Vitis vinifera.
   http://www.siu.edu/~ebl/leaflets/grapes.htm

Muscadine Grape Fruit Facts
   Description and culture of Vitis rotundifolia.
   http://www.crfg.org/pubs/ff/muscadinegrape.html

Native North American Grapes and Wines
   Descriptions of several species.
   http://winemaking.jackkeller.net/natives.asp

Vitis orientalis
   image
   http://www.dipbot.unict.it/orto/0838-1.html