Career in Glasgow
In February 1820, Hooker was appointed as the regius professor of botany in the University of Glasgow, taking over from the Scottish physician and botanist Robert Graham, and inheriting a small botanic garden that was underfunded and lacking in plants. In May he was received by the University and read his inaugural thesis in Latin, written by his father-in-law, Dawson Turner. Hooker was faced with the prospect of delivering lectures to students, when he had never previously taught, and was ignorant of some aspects of botany: his position within the medical faculty inspired him to study for a medical degree.
He soon became popular as a lecturer, his style being both clear and eloquent, and people such as local army officers came to attend them. For 15 years he delivered a summer course on botany, required to be studied by all medical students—for the remaining months of the year he was free to study, work on his publications and his herbarium, and correspond with other botanists.
His classroom was remarkable for having drawings of plants on display to assist the students, and their course included trips to study plants, organised by Hooker. Student numbers increased from 30 in 1820 to 130 ten years later. He earned £144 in his first year, which later increased, but still needed to supplement his income by tutoring two boys from wealthy families, who lived with the family.
His years at Glasgow were his most productive, when he was known as the most active botanist in the country. In 1821 he brought out the Flora Scotica, written to be used by his botany students. He was awarded a doctorate by Glasgow University in 1821. He worked with the lithographer and botanist Thomas Hopkirk to establish the Royal Botanic Institution of Glasgow and to lay out and develop the Botanic Gardens. He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1823.
Under Hooker, the Botanic Gardens enjoyed remarkable success and became prominent in the botanic world. The garden was his responsibility and he set to work developing it with the help of his extensive network of friends and acquaintances. Principal among these was Sir Joseph Banks, who promised Kew's help. The botanic gardens steadily acquired new plants, often from visiting naturalists, or from students who had travelled. His work on the botanic garden resulted in experts expressing the view that "Glasgow would not suffer by comparison with any other establishment in Europe".
During his professorship at Glasgow, his numerous published works included Flora Londinensis, British Flora, Flora Boreali-Americana, Icones Filicum, The Botany of Captain Beechey's Voyage to the Bering Sea, Icones Plantarum, Exotic Flora (1823–27), 13 volumes of Curtis's Botanical Magazine (from 1827), and the first seven volumes of Annals of Botany. Mount Hooker, between Alberta and British Columbia, was named for him in 1827 by David Douglas.
In 1836, Hooker was made a Knight of the Royal Guelphic Order and a Knight Bachelor in recognition of his work at Glasgow and his services to botany. Although officially recognised in this way, he became increasingly disillusioned with how his work was viewed by the University authorities, and by 1839 was feeling as if the "dignity of the position was stripped to one of ridicule and his work was dismissed as of no account".
During his time in Glasgow, he lived, for several summers, at Invereck at the head of the Holy Loch. "He seems to have devoted special attention to the vegetation of the neighbourhood," wrote John Colegate in 1868. "The result of his inquiries were published in the Rev. Dr. McKay's Statistical Account of the United Parishes of Dunoon and Kilmun."
