Hassler

The taxon authority Hassler / Hässler may refer to:

Arne Hässler (1904-1952, A.Hässl.), botanist
Emil Hassler (1864–1937, Hassl.), Swiss physician, naturalist and botanist, = Émile Hassler = Emilio Hassler
Michael Hassler (M.Hassl.), German botanist
William Grey Hassler, U.S. zoologist and herpetologist

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