Vitis is separated from Ampelopsis and Cissus by marked differences in several organs, of which, horticulturally at least, those in the fruit best serve to distinguish the group.
"Manual of American Grape-Growing"
U. P. Hedrick
Some one horticulturally inclined having observed the unusually fine fruit on the chance plant, and believing that it is a good plan to help the fittest to survive, marked the bush, and in the autumn transferred it to his garden.
"The Home Acre"
E. P. Roe