Illustrations and Images

• Calflora.  (Beware of identification)

• Flowering plant index (FPI), University of Minnesota, 1991- (QK11 .F68 Reference)

• Flowering plant index of illustration and information (compiled by Richard T. Isaacson), Boston: G. K. Hall, 1979, 1982 (QK11 .I8 Reference).

• Google images Correct identification not guaranteed!

• Index Londinensis, Oxford: Clarendon Press, 1929-31 and later supplements (QK11 .P95 Reference).  Illustrations of flowering plants, ferns, and fernallies, by genus, species, publication place.

• Plant image collection Smithsonian

• Plant systematics

• Plants database: Image gallery (USDA)

• TROPICOS image database