A revision is given of the genera Auriscalpium, Hericium, Hydnum, and Sistotrema. Hydnum heimii is described as a new species.

Persoonia - Molecular Phylogeny and Evolution of Fungi

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Naturalis journals & series

Maas Geesteranus, R.A. (1959). The stipitate Hydnums of the Netherlands—IV. Auriscalpium S. F. Gray, Hericium Pers. ex S. F. Gray, Hydnum L. ex Fr., and Sistotrema Fr. em. Donk. Persoonia - Molecular Phylogeny and Evolution of Fungi, 1(1), 115–147.