North American species of Mycena.

8 NORTH AMERICAN SPECIES OF MYCENA

Assistant Dean Clyde Leavitt and Dr. J. L. Lowe, of the New York
State College of Forestry at Syracuse, New York, I am indebted for
assistance in the field and facilities furnished for my studies both at
the Archer and Anna Huntington Wild Life Forest Station near
Newcomb, New York, and at the Pack Forest near Warrensburg.
Professor H. S. Jackson, of the University of Toronto, Toronto,
Ontario, placed the equipment of the Bear Island Laboratory at
Lake Timagami, Ontario, at my disposal during the late summer of
1936. Mr. Preston P. Macy, Superintendent of the Olympic National Park, encouraged my field work in that area. Mr. Arthur
Stupka, Park Naturalist in the Great Smoky Mountains National
Park in Tennessee and North Carolina, did much to make my collecting there successful. Dr. R. P. Burke, of Montgomery, Alabama,
sent to me many collections from Alabama during the season of 19492.
Mr. Maurice B. Walters, Cleveland, Ohio, contributed specimens,
and Mr. H. C. Beardslee, Perry, Lake County, Ohio, who has had a
lifelong interest in Mycena, aided the project with both suggestions
and material. Dr. James Walton Groves, of the Division of Botany
and Plant Pathology, Central Experimental Farm, Ottawa, Ontario,
supplied fungi from the region around Ottawa. Dr. G. R. Bisby,
formerly of the University of Manitoba, Canada, and now of the
Imperial Mycological Institute, Kew, Surrey, England, gave me
Mycenae from Manitoba and western Ontario. Dr. S. M. Zeller, of
Oregon State College, and Mr. Harold Parks, of Trinidad, California,
did much to make my expeditions in Oregon and California both
profitable and pleasant. Dr. D. E. Stuntz, of the Department of
Botany, University of Washington, Seattle, Washington, Mr. J. B.
Flett, Zenith, Washington, Mr. Wm. B. Gruber, Portland, Oregon,
Miss Elizabeth E. Morse, of Berkeley, California, and Mr. Paul
Marshall Rea, of Santa Barbara, California, all donated collections
and field notes. Dr. A. W. Slipp, of the School of Forestry, University of Idaho, gathered material from northern Idaho during the
course of his ecological investigations in that area. Professor E. B.
Mains, Director of the University of Michigan Herbarium, has not
only collected plants for this study in various parts of the United
States, but has encouraged and aided the project in many other ways.
Professor D. V. Baxter, of the School of Forestry and Conservation
of the University of Michigan, made many valuable suggestions
during the preparation of the manuscript.
Dr. Robert Ktihner, Lyon, France, Mr. A. A. Pearson, Hindhead,