A Contribution toward a monograph of North American species of Suillus

Pp. v, 116; 46 full page black-and-white plates.  Original tan printed wrappers, lettered in black on the front cover and with illustrations of three mushrooms on the front cover, 8vo.  There is no denying that the species of Suillus are one of the most confusing groups of fleshy fungi in North America.  This monograph does not introduce many new characters but rather a better evaluation of the features emphasized by previous authors.  This volume is from the private research collection of University of Michigan mycologist Alexander H. Smith.  No ownership marks and almost no signs of use.