[BOTANICAL]. Thornton, Robert (1768-1837) The Blue Passion Flower -- The Superb Lilyfrom The Temple of Flora; or Garden of Nature. Picturesque Botanical Plates of the New Illustration of the Sexual System of Linnaeus, London, 1799-1807 (watermarked 1794 and H Smith 1810, respectively)2 engravings with hand-coloring, plates 20 1/2 x 15 in, 19 x 14 1/4 in, sheets 21 5/8 x 16 1/2 in, 22 x 17 11/16 in. Some overall browning and mat burn, Superb Lily with spotting and small holes repaired lower margin, hinged to backing board upper margin verso.