The North American species of Pholiota, by Alexander H. Smith and L. R. Hesler.

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The North American Species of Pholiota

OBSERVATIONS: This species is well marked for field identification by
its varied colors, especially the olive and green hues in the earlier stages.
These green tints often show to some degree in mature caps. The sporecolor is essentially brown, but in a good print there is a slight purplish
tinge. Despite this spore-color, agaricologists consider it close to Pholiota
(or Flanmula, in older publications) than to any of the purple-spored
genera, but this only goes to help point out the intergradations in spore
color between Psilocybe, Stropharia and Pholiota.
MATERIAL EXAMINED: INDIANA: Kanouse 10-11-47; FLORIDA:
Hesler 21436; MICHIGAN: Harding 487; Kauffman & Pennington 8 -27-06, Kauffman 9-107a, 9-12-07b, 9-12-07c, 9-23-12, 9-25-29; Smith 10-10 -31, 32-598, 11008, 11083, 14952, 15255, 21155, 21909, 32054, 43545, 43711,
51216, 68743, 68782; MARYLAND: Kelly 435, 1447; Kauffman 9-1-19;
NEW YORK: Kauffman 7-17-03; Peck (types of Agaricus (Flammula)
ornellus and Pholiota appendiculata); NORTH CAROLINA (GSMNP):
Hesler 17654; OREGON: Smith 68741; PENNSYLVANIA: Kauffman
9-24-09; TENNESSEE: Hesler 3682, 4261, 5396, 5397, 8076, 8019, 9545,
13797, 19522, 19840, 22180; TEXAS: Thiers 1905; VIRGINIA: Kelly
348, 349, 1696; CANADA (Ontario): Smith 4589.
Stirps Crassipedes
The distinctly lignicolous species not included in any previous stirps
are placed here.
Key
1. Pileus clay-color to pinkish-buff..................
1. Pileus distinctly yellow at least on the margin.............
2. Pileus context slowly staining cinnamon-buff when cut; pleurocystidia 60-104 /u long; subhymenium thin and cellular (not
gelatinous)............................................................ P. m acrocystis
2. Pileus context white and unchanging; pleurocystidia 40-80 Pt
long........................................ see P. harenosa
3. Pileus spotting green when handled................................ P. subflavida
3. Not as above............................... 4
4. Pileus dark yellow brown but drying bay-red; lamellae sulphur
yellow w hen young........................................................... P. bigelow ii
4. Not as above.................................. 5
5. Pleurocystidia 40-56 x 12-17; spores 5-6 X 3-3.5..................................................see P. flavopallida
5. Pleurocystidia 38-73 x 7-21 /u; spores 5.5-7 X 3.5-4.5................................. P. crassipedes
193. Pholiota macrocystis sp. nov.
Illustrations: Text figs. 434-435, 437-439.