Entoloma abortivum

This 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.

Fruiting body containing fibers (usually in the stalk)

Spores pink or reddish

Terrestrial (occasionally on rotting wood on the ground)
Gills attached (notched, adnate, or subdecurrent), sometimes almost free in small mushrooms

Cap up to 6" across
Stem fleshy
Usually dull-colored: some shade of greyish brown, but sometimes dark-colored: black, dark blue or dark purple
Sometimes smelling like bleach ("nitrous")

Entoloma abortivum     (Berkeley & M. A. Curtis) Donk

Here are the characters that distinguish this species from the others in its group. For its more general characters, see higher up on the page.
If there's just a few words or a microscopic feature here, a more thorough description can be found above.

Diagnosis

• Gills subdecurrent; grey at first, becoming pink with spores
  
• Cap up to 4" across; steel grey with slight tinges of brown or (occasionally) magenta; sometimes a little fibrillose or scaly; margin inrolled
  
• Often growing on rotting wood, around stumps, or in leaf litter

Microscropic Characters

• Spores 8-10 x 4.5-6 µm, inamyloid, usually 6-sided

Comments

This collection had small tufts of white hairs when young; they are still visible around the edge of the cap in this photo

3

This is the only Entoloma with subdecurrent gills, and the only one that grows with rotting wood


 

 

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