Elmer Drew Merrill

Elmer Drew Merrill (October 15, 1876 – February 25, 1956) was an American botanist and taxonomist. He spent more than twenty years in the Philippines where he became a recognized authority on the flora of the Asia-Pacific region. Through the course of his career he authored nearly 500 publications, described approximately 3,000 new plant species, and amassed over one million herbarium specimens. In addition to his scientific work he was an accomplished administrator, college dean, university professor and editor of scientific journals.

Early life Merrill and his twin brother, Dana, were born and raised in East Auburn, Maine, the youngest of six children born to Daniel C. and Mary (Noyes) Merrill. Merrill showed an early interest in natural history, collecting and identifying plants, birds' eggs, rocks, and minerals. In 1894 he entered the University of Maine with the intention of studying engineering but soon switched to a general science curriculum where he focused on the biology and classification of flowering plants. He was the valedictorian of his graduation class in 1898 and then stayed on for an additional year working as an assistant in the Department of Natural Science. During his time in college Merrill built a sizable herbarium of almost 2,000 specimens which he eventually donated to the New England Botanical Club.

In 1899 Merrill accepted a position with the United States Department of Agriculture in Washington D.C. as an assistant to Frank Lamson-Scribner, an authority on the classification of grasses and a pioneer plant pathologist. At the USDA he learned the principles of plant taxonomy and became proficient in the development and management of a herbarium. His training was supplemented by fieldwork in Idaho, Montana, and Wyoming.

Philippines At the end of the Spanish–American War, the United States Taft Commission established the Insular Bureau of Agriculture in Manila. Merrill was appointed to the post of botanist in the new organization and arrived in 1902 in Manila where he was to work for the next twenty-two years. Merrill was dismayed to discover that the herbarium he was expecting to find had been destroyed during the war, along with the botanical library and scientific equipment. Nevertheless, starting with just an empty building, he set out to rebuild the herbarium and library.

Within a few months his role was expanded to include a joint appointment with the Bureau of Forestry. Over the years Merrill's responsibilities continued to grow until he became both the Director of the Bureau of Sciences and a Professor of Botany at the University of the Philippines. He collected and studied plants not only from the Philippines but also from the greater Asia-Pacific region including Indonesia, Malaysia, Indochina, China, and Guam. Eventually the herbarium grew to over 250,000 specimens and the botanical library was recognized as one of the best in Asia. Another large series was devoted to plants described by Manuel Blanco Ramos and Antonio Llanos Aller. Together with Charles Budd Robinson he worked on the legacy of Georg Eberhard Rumphius and the interpretation of his Herbarium Amboinense.

Merrill published more than 100 taxonomic papers on Philippine flora and several additional papers on the flora of the region. Many of his papers were published in The Philippine Journal of Science, a journal he helped establish and edited from 1907 to 1918. In 1912, he published a 500-page Flora of Manila covering some 1,000 species. In 1921, he completed a Bibliographic Enumeration of Bornean Plants, a volume of 637 pages. His most ambitious work was the Enumeration of Philippine Flowering Plants published in sections between 1923 and 1926. As documented by his Enumeration the list of known Philippine species had been extended from 2,500 plants of all types in 1900 to 8,120 species of flowering plants, 1,000 species of ferns, and 3,000 species of cryptogams.

The herbarium collection was completely rearranged, operations were improved, and specimens inventoried for the first time. Once the substantial backlog of unmounted material was complete, specimens were mounted for other institutions including the Arnold Arboretum and the Gray Herbarium. In 1931 Merrill established a new journal focused on systematic botany and plant geography, named Brittonia after Nathaniel Lord Britton, a co-founder of the Garden.

Harvard University In 1935, Merrill left the Botanic Garden and took a job as Administrator of Botanical Collections at Harvard University, a new position created to consolidate the supervision of eight separate Harvard botanical units. A year after his arrival Merrill also became the Arnold Professor of Botany, and in 1937 the Director of the Arnold Arboretum. In his new roles Merrill devoted significant time to expanding the herbarium of the Arnold Arboretum and to research on Asiatic plants. Over the next ten years 220,000 plant specimens were acquired from all parts of Asia and the Asia-Pacific. Meanwhile, Merrill continued to publish numerous papers on Asia flora as well as articles dealing with the cultivation and dispersion of domesticated plants. During the Second World War he consulted with the United States War Department and wrote a handbook, Emergency Food Plants and Poisonous Plants of the Islands of the Pacific. At various times he served as President of the Botanical Society of America, Acting President of the American Association for the Advancement of Science, and President of the New England Botanical Club, the American Society of Plant Taxonomists, and the International Union of Biological Sciences. He was a member of the American Academy of Arts and Sciences, the United States National Academy of Sciences, and the American Philosophical Society.

Several plant genera; Merrillia (a synonym of Murraya J.Koenig ex L.), Merrillanthus (a synonym of Vincetoxicum Wolf), Merrilliobryum (a genus of moss), Merrilliodendron (the family Icacinaceae), Merrilliopanax (the family Araliaceae), Sinomerrillia (a synonym of Neuropeltis Wall.), and Elmerrillia (a synonym of Magnolia Plum. ex L.). Also over 200 species were named in his honour.