A Contribution toward a monograph of North American species of Suillus lettered in black on the

lettered in black on the cover

Its scope includes European

lettered on the spine and front cover in white

This volume was compiled when Adams was Secretary of State

A Contribution toward a monograph of North American species of Suillus lettered in black on thePp. 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 presents a better evaluation of the features emphasized by previous authors. This