During the summers of 1929, 1930, 1933, and 1935, Mr. Ross W. Davidson made numerous collections of discomycetes in the Grand Mesa National Forest, Colorado. Two previous papers (1, 2) have dealt with several species of Sclerotinia and a few of the Cenangiaceae from this locality: various other collections made by Mr. Davidson during these trips are discussed here. The speci? mens are deposited in the Mycological Collections of the Bureau of Plant Industry, and duplicates of those here listed as numbers 1, 2, 3, 4, and 6 are also in the Farlow Herbarium of Harvard University, the Herbarium of the New York Botanical Garden, and the Herbarium of the University of Michigan.
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