Gentiana; Gentian; Signed: Publ. By W. Curtis; no. 52; p. 52; Curtis; W. (publ.); 1787; [William Curtis (Hg.)]: The botanical magazine; or; flower-garden displayed: in which the most ornamental foreign plants; cultivated in the open ground; the green house; and the stove; will be accurately represented in their natural colours. Jg. 1. London: printed by Fry and Couchman; 1787.