Henry George Moon (18 February 1857 Barnet, Hertfordshire - 6 October 1905 St Albans, Hertfordshire), was an English landscape and botanical painter, noted for his orchid paintings illustrating Reichenbachia, a monthly publication named in honour of Heinrich Gustav Reichenbach of Hamburg, the great orchidologist.
Alexander Marshal (Marshall) (c.1620-1682) was one of a circle of gentleman gardeners, centred on London, for whom the cultivation of rare plants was essential to the study of the natural world. Their interest was stimulated by the previously unknown specimens imported to England from the Near East and the New World in the seventeenth century.