H. H. Bloomer Award

The H. H. Bloomer Award is an award of the Linnean Society, established in 1963 from a legacy by the amateur naturalist Harry Howard Bloomer, which is awarded to "an amateur naturalist who has made an important contribution to biological knowledge." The recipients, alternatively a botanist and a zoologist, are presented with a silver medal and a donation from the Fund.

Source (1990-present):

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Wikipedia