Mary Letitia Sprague (née Green) (1886–1978) was a British botanist and bibliographer who worked at Kew Gardens.
[1][2] In 1938 she married Scottish botanist Thomas Archibald Sprague, the Deputy Keeper of the Kew Herbarium, and together they compiled several supplements to the Index Kewensis.
[4][5] The standard author abbreviation M.L.Green is used to indicate this person as the author when citing a botanical name.
[6] She revised Arthur Fenton Hort's translation of Linnaeus' Critica Botanica, for an edition published by the Linnean Society of London in 1938, with an Introduction by Arthur William Hill.
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