APHOTOFLORA

An online educational resource and botanical image library dedicated to
the flora; wildflowers, trees, shrubs, ferns, liverworts and mosses, found in
South-West England, mostly around Devon and Cornwall, by David Fenwick.

Gentian Family (Gentianaceae)
Yellow-wort, Centaury and Gentian (Blackstonia, Centaurium and Gentianella.)

Periwinkle Family (Apocynaceae)
Periwinkles (Vinca.)

Bedstraw Family (Rubiaceae)
Crosswort, Cleavers, Bedstraw and Madder (Cruciata, Galium, Phuopsis, Rubia and Sherardia.)