SUBSECTION CAMAROPIIYLLOPSIS 77 



or in age slightly paler and nearly concolorous with pileus, distant, 

 intervenose, thick, broad, edges even. 



Stipe 4-11 cm long, 10-25 mm at apex, narrowed to the base, pah- 

 pinkish buff within, surface whitish and unpolished at first, in age 

 more or less streaked pinkish buff on a pallid ground color, not dis- 

 coloring in age or on drying, solid, firm, hard, rather deeply rooting. 



Spores 7-8 X 5-5.5 /x, ellipsoid, non-amyloid. Basidia 4-spored, 

 42-55 X 7-8 ix. Pleurocystidia and cheilocystidia none. Gill trama 

 compactly interwoven, of hyaline hyphae. Pileus trama homogeneous, 

 no epicutis differentiated; clamp connections present. 



-fM 



Fig. 20. H. pratensis var. robustus 



Habit, Habitat, and Distribution — Scattered under hardwoods, 

 Sharon Hollow, Washtenaw County, Michigan, Oct. 6, 1961. 



Material Studied — Michigan: type, Smith 64616. 



Observations — This material answers the descriptions of Euro- 

 pean authors better than does our common form which is actually 

 rather thin-fleshed, and when perfectly fresh practicallv hygrophanous. 

 The two were compared fresh the same day from the same woods. 

 Specimens of H. pratensis sensu Smith & Hesler (1942) were moist 

 and hygrophanous, thin-fleshed, and very fragile, and the stipes were 

 not deeply rooting. Since these characters deal with those of fresh 

 fruiting bodies, one has to rely mainly on descriptions for comparisons. 



