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

USDA United States National Fungus Collections
Catalog #: BPI 008217
Stevenson W. C. s.n. 00 May 1883
Uromyces houstoniatus J. Sheld.
United States, Pennsylvania, Fairmount Park, Philadelphia

USDA United States National Fungus Collections
Catalog #: BPI 958867
Stevenson, W.C. Jr. s.n. 00 May 1883
Aecidium houstoniatum (Schwein.) Burrill
United States, Pennsylvania, Fairmount Park, Philadelphia

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000247617
W. C. Stevenson Jr. #1422 00 May 1883
Nigredo houstoniata (Schwein.) Arthur
United States, Pennsylvania, Philadelphia, Fairmount Park

Academy of Natural Sciences of Drexel University
Catalog #: PH00313509
W. C. Stevenson, Jr #s.n. 00 May 1883
Uromyces houstoniatus J. Sheld.
United States, Pennsylvania, Philadelphia, Philadelphia

Academy of Natural Sciences of Drexel University
Catalog #: PH00313513
W. C. Stevenson, Jr #s.n. 00 May 1883
Uromyces houstoniatus J. Sheld.
United States, Pennsylvania, Philadelphia, Philadelphia

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00042883
W. C. Stevenson, Jr. s.n. 00 May 1883
Aecidium houstoniatum Schwein.
United States, Pennsylvania, Philadelphia, Fairmount Park;

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00042880
W. C. Stevenson, Jr. s.n. 00 May 1883
Aecidium houstoniatum Schwein.
United States, Pennsylvania, Philadelphia, Fairmount Park;

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0254699
W. C. Stevenson, Jr. s.n. 00 May 1883
Aecidium houstoniatum Schwein.
United States, Pennsylvania, Philadelphia; Fairmount Park

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0000395
W.C. Stevenson, Jr. s.n. 00 May 1883
Aecidium houstoniatium
United States, Pennsylvania, Philadelphia;

University of Illinois Fungarium - Fungi
Catalog #: ILL00098679
WC Stevenson, Jr s.n. 00 May 1883
Aecidium houstaniatum
United States, Pennsylvania, Philadelphia, Philadelphia; Philadelphia

Wisconsin State Herbarium, Fungi
Catalog #: WIS-F-0088208
WC Stevenson, Jr s.n. 00 May 1883
Aecidium houstaniatum
United States, Pennsylvania, Philadelphia, Philadelphia