F.K.A.E.J. de Thümen [1-2300, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 1034813
Mac Owan, P. #1212
Clitocybe amara (Alb. & Schwein.) P. Kumm.
South Africa, Somerset-East, mount Boschberg

USDA United States National Fungus Collections
Catalog #: BPI 753894
Owan, P. M.; Tuck s.n.
Clitopilus amarus A. de Haan
Unknown

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0003410
Prof. P Mac Owan et Tuck s.n.
Clitocybe amarus

University of Illinois Herbarium
Catalog #: ILL00076342
Prof. P. Mac Owan s.n.
Agaricus amarus
South Africa, Somerset-East; Somerset-East

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00047786
Prof. P. Mac Owan et Tuck s.n.
Clitocybe amara (Alb. & Schwein.) P. Kumm.