Observation 60840: Chlorophyllum brunneum (Farl. & Burt) Vellinga
When: 2010-12-15
Who: Byrain
No herbarium specimen

Notes: Found in a grove of mixed oak species, has a large basal bulb, a white spore print, and stains red to darken with time. There were a few, the cap ranging from about 5 cm to 10 cm diameter. Unfortunately it started getting dark and my camera stopped focusing predictably.

Proposed Names

61% (2)
Eye3 Eyes3
Recognized by sight: Shaggy cap, basal bulb, no volva, collar-like ring, staining red when the base is cut off, white spores.
Used references: Mushrooms Demystified
-57% (1)
Recognized by sight
Used references: This thread – http://www.shroomery.org/...

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks, they’re likely C. brunneum
By: Byrain
2010-12-17 00:38:18 CST (-0500)

The ring had only one layer and the bulbs seem to be rimmed as you say.

The difference
By: Sava Krstic (sava)
2010-12-17 00:24:08 CST (-0500)

Quoting Trudell & Amirati: “Ch. brunneum has a distinct, often abrupt-rimmed bulbous stipe base and a single ring with a brownish underside. Ch. rachodes has a bulbous, but not rimmed, stipe base, and the ring has two distinct layers”.

It looks from your last picture that the bulb is rimmed.

I just posted (observation 60910) pictures that show the features of the rachodes.

C. brunneum vs. C. rachodes
By: Byrain
2010-12-16 23:55:03 CST (-0500)

How does one tell the difference?

Base picture added.
By: Byrain
2010-12-16 21:22:49 CST (-0500)

Created: 2010-12-16 02:45:17 CST (-0500)
Last modified: 2010-12-17 00:38:30 CST (-0500)
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