Caption:
St. John's wort, Hypericum perforatum, Polyadelphia, 1,2, and blue bottle or cornflower, Centaurea cyanus, Syngenesia, 3-5. Handcoloured copperplate engraving by F. Sansom of a botanical illustration by Sydenham Edwards for William Curtis' Lectures on Botany, as delivered in the Botanic Garden at Lambeth, 1805.