these plants came from the family Orchidaceae with which he had a lifelong fascination. Lindley was appointed assistant secretary to the Royal Horticultural Society and its new garden at Chiswick in 1822, where he supervised the collection of plants. Assistant secretary to the Horticultural Society since 1822, in 1829 Lindley was appointed to the chair of botany at University College, London, which he retained until 1860. He also lectured on botany from 1831 at the Royal Institution, including delivering the 1833 Royal Institution Christmas Lecture, and from 1836 at the Chelsea Physic Garden, starting the society's flower show in the late 1830s.Lindley described the plants collected on Thomas Livingstone Mitchell's expeditions of 1838 and wrote an Appendix to Edwards's Botanical Register of 1839, describing plants collected by James Drummond and Georgiana Molloy of the Swan River Colony in Western Australia. According to John Ryan, Lindley's 1840 ‘Sketch of the Vegetation of the Swan River Colony’ provided ‘the most succinct portrait to date of the flora of the Swan River Settlement’, which had been established in 1829. The Sketch, which was published during November 1839 and January 1840 in Edwards’ Botanical Register and separately on its completion, was illustrated by nine hand-coloured lithographs and four wood-cuts. He also played a large part in having Charles Moore appointed as Director of the Sydney Botanical Gardens. During his professorship, he wrote many scientific and popular works as well as making significant contributions to the Botanical Register, of which he was the editor for many years, and to The Gardeners' Chronicle, which he co-founded with Joseph Paxton, William Bradbury and Wentworth Dilke, and where he was in charge of the horticultural department from 1841. He was a fellow of the Royal, Linnean and Geological Societies. He received the Royal Society's royal medal in 1857, and in 1853 became a corresponding member of the Institut de France. In 1862, he was elected as a member of the American Philosophical Society. Horticultural Society of London About this time, the Horticultural Society of London, which became the Royal Horticultural Society at a later date, asked Lindley to draw roses and in 1822 he became the Assistant Secretary of the Society's garden. The Society's historian, Harold R Fletcher, later described him as “ ... the backbone of the Society and possibly the greatest servant it had ever had.” Now with a steady income, in 1823 he married Sarah