Book ID: 5403
Hesler, Lexemuel Ray and S. H. Smith
North American Species of Hygrophorus. 1963. (Reprint 2011). 126 figs. VII, 416 p. gr8vo. Hardcover.
General part dealing with macroscopic and microscopic properties,ecology, geographic distribution, etc. Phylogenetic and systematic considerations. Several determination keys, detailed diagnoses.