Taxonomy
Lactarius subdulcis was first described as Agaricus subdulcis by mycologist Christian Hendrik Persoon in 1801, before English mycologist Samuel Frederick Gray placed it in its current genus Lactarius in 1821 in his The Natural Arrangement of British Plants. The specific epithet is derived from Latin words sub "under", and dulcis "sweet", after the milk's delayed sweet taste. As well as mild milk cap, beech milk cap is an alternate common name.
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