CHECKLIST OF THE
CULTIVATED
FORMS OF THE GENUS VIOLA
INCLUDING THE
REGISTER OF CULTIVARS
(online version)
Compiled for and published by
The
American Violet Society
Washington, DC
Copyright 2002, 2003:
Peter M. Robinson, International Cultivar Authority
and
John Snocken, Assistant Registrar
(National Pansy and Viola Society (U.K.)
By Appointment of
International Society for Horticultural Science (Belgium)
All rights reserved