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Walker, Colin
(2021).
Abstract
Crassula is a relatively large and very diverse genus with perhaps around 200 species worldwide excluding Antarctica, (including one native British species). For succulent growers, however, the greatest diversity of desirable species occurs in southern Africa where Tölken (1985) recorded 149 species with many subspecies and varieties. Here just three South African species are showcased because they feature in the botanical art of Baron von Jacquin: Crassula barbata, C. perforata and C. pellucida. All three species have a long history in cultivation and are illustrated here with three plates from Plantarum rariorum caesarei Schoenbrunnensis descriptions et icones (1797–1804) known as one of Baron von Jacquin’s finest books.