J.B. Ellis, B.M. Everhart, and E. Bartholomew [1501-5100, plus extras]

University of Vermont, Pringle Herbarium, Macrofungi
Catalog #: UVMVT300951
E. A. Burt #s.n. 00 August 1897
Pleurotus atrocoeruleus var. griseus Peck
United States, Vermont, Middlebury;

Clemson University Herbarium
Catalog #: CLEMS-F0002759
E. A. Burt. #3505 00 August 1897
Pleurotus atrocoeruleus (Fr.) P. Kumm.
United States, Vermont, Middlebury; Middlebury; 44.012355 -73.169554

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0219985
E.A. Burt s.n. 00 August 1897
Pleurotus atrocoeruleus griseus
United States, Vermont, Middlebury;

Cornell University Plant Pathology Herbarium
Catalog #: F.Columbiani-1202
E.A. Burt #NAF 3505 00 August 1897
Pleurotus atrocoeruleus (Fr.) Sacc.
United States, Vermont, Addison, Middlebury;

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0032737
E.A. Burt #s.n. 00 August 1897
Pleurotus atrocoeruleus var. griseus Peck
United States, Vermont, Middlebury;

Brown University Herbarium
Catalog #: CBRU00003832
EA Burt s.n. 00 August 1897
Pleurotus atrocoeruleus var. griseus Peck
United States, Vermont, Addison, Middlebury;

Purdue University, Kriebel Herbarium
Catalog #: PUL00019436
EA Burt s.n. 00 August 1897
Pleurotus atrocoerules
United States, Vermont, Addison, MiddlE Bartholomewury;

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000164638
Ellis #s.n. 00 August 1897
Pleurotus atrocoeruleus (Fr.) Sacc.
USA, Vermont, Middlebury.

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00065037
Prof. E. A. Burt s.n. 00 August 1897
Pleurotus atrocoeruleus var. griseus Peck
United States, Vermont, Middlebury;

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0016297
Prof. E. A. Burt s.n. 00 August 1897
Pleurotus atrocoeruleus (Fr.) P. Kumm.
United States, Vermont, Addison, Middlebury;

Academy of Natural Sciences of Drexel University
Catalog #: PH00321778
Prof. E. A. Burt #N. A. F. 3505 00 August 1897
Pleurotus atrocaeruleus
United States, Vermont, Middlebury;