Angiosperm Images - Extensive collection, organized by family. www.albion.edu/plants/ANGIFAMS.HTM
Flowering Plant Gateway - Various paths for exploration or comparison of four major flowering plant classification systems (Cronquist, Takhtajan, Thorne and the Angiosperm Phylogeny Group system). From Texas A&M University. www.csdl.tamu.edu/FLORA/newgate/cronang.htm
The Families of Flowering Plants - A taxonomical database with descriptions and illustrations of each family. www.biodiversity.uno.edu/delta/angio/index.htm
