Ellis, N. Amer. Fungi
J.B. Ellis [1 - 1500, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 958133
s.n.
Paxillus porosus Berk.

Academy of Natural Sciences of Drexel University
Catalog #: PH00307888
B. M. Everhart #s.n. 00 October 1881
Paxillus porosus Berk.
United States, Pennsylvania, Chester, West Chester

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00061578
Everhart s.n. 00 October 1881
Paxillus porosus Berk.
United States, Pennsylvania, West Chester;

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00061579
Everhart s.n. 00 October 1881
Paxillus porosus Berk.
United States, Pennsylvania, West Chester;

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000193641
Everhart #704 00 October 1881
Paxillus porosus Berk.

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0012974
Everhart, Haines, Jefferis & Gray s.n. 00 October 1881
Paxillus porosus Berk.
United States, Pennslyvania, West Chester;

University of Illinois Herbarium
Catalog #: ILL00097879
Everhart, Haines, Jefferis and Gray s.n. 00 October 1881
Paxillus porosus Berk.
United States, Pennsylvania, Chester, West Chester; West Chester

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0086648
Everhart, Haines, Jefferis and Gray s.n. 00 October 1881
Paxillus porosus Berk.
United States, Pennsylvania, Chester, West Chester

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0253933
Everhart; Haines; Jefferis; Gray s.n. 00 October 1881
Paxillus porosus Berk.
United States, Pennsylvania, West Chester;

University of Michigan Herbarium
Catalog #: 245441
J. B. Ellis #s. n. 00 October 1881
Paxillus porosus Berk.
USA, Pennsylvania, Chester, West Chester