More, (much more) than you ever wanted to know about the shape, size, color, plant (or leaf) type, of tomatoes. http://www.ars-grin.gov/cgi-bin/npgs/html/desclist.pl?50
I took a look, then backed it up to its home and added that to FAVORITES; good site for research purposes.
very nice although they do make me laugh when there is no reference to the main reason we grow tomatoes... TASTE