William T. Stearn

William Thomas Stearn (; 16 April 1911 – 9 May 2001) was a British botanist. Born in Cambridge in 1911, he was largely self-educated and developed an early interest in books and natural history. His initial work experience was at a Cambridge bookshop, but he also had an occupation as an assistant in the university botany department. At the age of 29, he married Eldwyth Ruth Alford, who later became his collaborator.

While at the bookshop, he was offered a position as a librarian at the Royal Horticultural Society in London (1933–1952). From there he moved to the Natural History Museum as a scientific officer in the botany department (1952–1976). After his retirement, he continued working there, writing, and serving on a number of professional bodies related to his work, including the Linnean Society, of which he became president. He also taught botany at Cambridge University as a visiting professor (1977–1983).

Stearn is known for his work in botanical taxonomy and botanical history, particularly classical botanical literature, botanical illustration and for his studies of the Swedish scientist Carl Linnaeus. His best known books are his Dictionary of Plant Names for Gardeners, a popular guide to the scientific names of plants, and his Botanical Latin for scientists.

Stearn received many honours for his work, at home and abroad, and was made a Commander of the Order of the British Empire (CBE) in 1997. Considered one of the most eminent British botanists of his time, he is remembered by an essay prize in his name from the Society for the History of Natural History, and a named cultivar of Epimedium, one of many genera about which he produced monographs. He is the botanical authority for over 400 plants that he named and described.

Life

Childhood William Thomas Stearn was born at 37 Springfield Road, Chesterton, Cambridge, England, on 16 April 1911, the eldest of four sons, to Thomas Stearn and Ellen ("Nellie") Kiddy of West Suffolk. His father worked as a coachman to a Cambridge doctor. Chesterton was then a village on the north bank of the River Cam, about two miles north of Cambridge's city centre, where Springfield Road ran parallel to Milton Road to the west. William Stearn's early education was at the nearby Milton Road Junior Council School (see image). (Opened in 1908, closed in 2006 and demolished in 2007, the site is now occupied by the Cambridge Manor Care Home.)

Later work After moving to London, Stearn produced a steady output of publications during his years at the Royal Horticultural Society's Lindley Library (1933–1952). These covered a wide range of topics from bibliography to plant nomenclature, taxonomy and garden plants, with a particular emphasis on Vinca, Epimedium and Lilium. Within two years of joining the library in 1933, he had produced his first major monograph, Lilies (1935), in collaboration with Drysdale Woodcock and John Coutts. This text, in an expanded and revised edition, as Woodcock and Stearn's Lilies of the World (1950) became a standard work on the Liliaceae sensu lato. While at the library he also continued his collaboration with his Cambridge colleagues, publishing catalogues of the Herbarium collections, including the Catalogue of the Collections of the Herbarium of the University Botany School, Cambridge (1935). The second task imposed on him at this time involved the RHS role in maintaining revision of the International Code of Botanical Nomenclature (see Botanical taxonomy).

After his return to London in 1946, at the end of the Second World War, a number of major publications ensued, including Lilies of the World in 1950. The RHS also imposed two major tasks on their librarian. In 1950, Frederick Chittenden, a previous director of RHS Wisley and Keeper of the Library, died leaving unfinished the four volume RHS Dictionary of Gardening that the society had commissioned from him before the war. The war had interrupted the work as many of the expected contributors were unavailable. Stearn, together with Patrick Synge, the RHS Publications Editor, undertook to complete the work, particularly volume IV (R–Z), a task he completed within six months, with 50 new articles. The finished work was published in 1951 and not only did he undertake the role of editing this large work but his contributions covered 50 genera, 600 species and complex identification keys such as Solidago and Viola. Since Stearn's entries in volume IV extended from Soldanella to Zygotritonia, he would jest that he was but "a peculiar authority on plants from 'So-' onwards". He issued a revised version in 1956 with Synge in which he added a further 86 articles. His recollection of this task was that he acquired "that occupational hazard of compilers of encyclopaedias", encyclopedic knowledge.

Many of Stearn's collaborative works used his bibliographic skills. While his genus monographs largely concentrated on Mediterranean flora, notably Epimedium, Allium and Paeonia, he was also the author of species articles both popular and technical as well as a number of classical treatises. In addition he produced floristic treatments of a number of regions such as Jamaica and Nepal. He also contributed to many national Florae as diverse as Bhutan and Greece, as well as major regional florae including the Flora Europaea and European Garden Flora.

While his output covered a wide range of topics, he is best known for his contributions to botanical history, taxonomy, botanical bibliography, and botanical illustration. Botanical Latin (four editions 1966–1992), is his best known work, having become a standard reference and described as both the bible of plant taxonomists and a philological masterwork. It was begun during the war years and the first edition was basically a guide to Latin for botanists with no or limited knowledge of the language, which he described as a "do-it-yourself Latin kit" for taxonomists. Later, the work evolved into an etymological dictionary, but then Stearn learned that such a work had already been published in the Netherlands before the war. He then continued to expand it with the assistance of his wife and son, systematically collecting botanical terms from botanical texts. It is said that only he could have written this work, which explains not just the derivation of plant names but also the philological principles involved in forming those names. The work is considered responsible for the continued survival of Latin as the lingua franca of botany. In addition to this seminal text, he frequently delighted in the illumination that the classics could add to understanding plants and plant lore, such as his Five Brethren of the Rose (1965).

His best known popular work is his Dictionary of Plant Names, which found its way into the libraries of most horticulturalists. One of the focuses of his work at the Natural History Museum was the flora of the Caribbean, where he carried out field work. Stearn continued to return to the Cambridge Botanic Garden, cared for his own garden and worked with the RHS to become an authority on horticulture as well as botany. William Stearn collaborated with his wife, Eldwyth Ruth Stearn, on a number of his most important works, including Botanical Latin for his contributions to Linnean scholarship and taxonomic botany. In 1985, he was the Wilkins Lecturer of the Royal Society, entitled Wilkins, John Ray, and Carl Linnaeus. In 1986, he received the Founder's Medal of the Society for the History of Natural History and in 1993, he received the Engler Gold Medal from the International Association for Plant Taxonomy.

He was well regarded in Sweden for his studies on Linnaeus, and possessed a good grasp of the language. In addition to his honorary doctorate from Uppsala, the Royal Swedish Academy of Sciences awarded him their Linnaeus Medal in 1972, he was granted the title of Commander of the Swedish Order of the Star of the North (Polar Star) in 1980 and admitted to membership of the Royal Swedish Academy of Sciences in 1983. Stearn was also elected to membership of the Swedish Linnaeus Society.

Legacy Stearn is considered a preeminent British botanist, and was once likened to botanical scholars such as Robert Brown, Darwin, the Hookers (William and Joseph) and Frans Stafleu. He has been variously described as a Renaissance man, a polymath, "the modern Linnaeus",