None of the quarto coloured plates is known to have survived. Sowerby's son, James de Carle Sowerby published two supplements to the original work. The first Supplement, issued from July 1829 to April 1831, comprised 100 new plates numbered 2592 - 2692 together with associated texts. The second Supplement, issued from June 1831 to January 1835, comprised 104 additional plates numbered 2693 - 2796 including two fold-out illustrations. The Supplements were available either coloured or plain but most were sold plain and have long since been lost. Later editions of the book were to take advantage of mechanical colour printing, improving the affordability of the book but to the detriment of the image quality already seriously compromised by extensive wear to the original copper plates. The third edition in 1863 saw editor John Boswell alter the text and include a "popular portion". However, it is evident that by this third edition the original plates had already deteriorated to such a degree that many of the original fine supplemental details in the plates had to be erased to be replaced by very low-grade work by James de Carle Sowerby who also often added large, uncoloured outlines of the leaves that further reduced the quality and aesthetics of the plates. Several further editions were subsequently produced by various publishers using cheap materials and low quality methods of reproduction, each seemingly copied from the immediately prior publication thus compounding the deterioration of the images.