Key to Gilled Mushrooms KeyThis is a key to gilled mushrooms, that is, mushrooms having a definite cap with a fertile surface consisting of gills. The fruiting body usually also has a stem, although that may be lateral or absent (usually, then, the mushroom is growing from wood). You can use this key to identify mushrooms that you find.
Agaricales OrderFruiting body containing fibers (usually in the stalk)
Gomphidiaceae FamilySpore print smoky-olive to black
Gills very decurrent, becoming smoky in age from developing spores
Cap typically slimy, or at least viscid
Under conifers only
Chroogomphus GenusFlesh (and gills, before they become colored by developing spores) colored: pinkish, yellow or orange
More likely to be umbonate
Larger Dull-footed Chroogomphus Section
Diagnosis
- Cap up to 5" across; some shade (reddish, olive or orange) of ochre when young, darkening (sometimes quickly, as in the picture; sometimes more slowly) through a wide variety of colors to vinaceous at maturity
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Stalk pale or dull orange to ochre, aging or staining vinaceous; often with black fibrils
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Partial veil ochre; fibrillose, evanescent or leaving an annular zone that becomes blackened by trapped spores (traces of this on both larger mushrooms in the picture)
Comments
Because of the tremendous variability in cap color, the species of this section can only be distinguished (conclusively) microscopically
Narrow down your identification:
Chroogomphus jamaicensisSpores 17-20 x 4.5-6 µm
Cystidia with uniformly thickened walls: up to 5 µm thick
Cap cuticule hyphae 2-5 µm wide
Chroogomphus rutilusCap flatter, duller, browner than the other species in the section