Geraniaceae. the Natural Order of Gerania, Illustrated by Coloured Figures and Descriptions ; Comprising the Numerous and Beautiful Mule-varieties Cultivated in the Gardens of Great Britain, with Directions for Their Treatment. by Robert Sweet, F.l.s. Author of Hortus Suburbanus Londinensis, Botanical Cultivator, & C. & C. Vol. i [-vol. V. Supplement].
