Observation 22029: Leucoagaricus meleagris (Sowerby) Singer

When: 2009-06-10

Collection location: Kentfield, California, USA [Click for map]

Who: Erin Page Blanchard (CureCat)

Specimen available

I’m not sure what these are… I found some much older ones in the same area and they were all stained bright pink! These readily stained a dark coral pink where handled. About 1-2 inches in length, with a slightly bulbous base- but nothing abrupt.

I found some Leucocoprinus cepaestipes growing less than a yard away.
These remind me of Leucoagaricus, but that is just a guess, I’m really not too sure. Apparently something Lepiotoid.

[admin – Sat Aug 14 02:01:48 +0000 2010]: Changed location name from ‘Kentfield, Marin Co., California, USA’ to ‘Kentfield, California, USA

Proposed Names

62% (2)
Recognized by sight
84% (1)
Eye3 Eyes3
Used references: Identified by Else C. Vellinga. See comments below.

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Thanks Else!
By: Erin Page Blanchard (CureCat)
2009-06-12 07:36:29 NZST (+1200)

I figured if anyone recognized them, it would be you! L. meleagris is a new one to me, but this photo I found looks spot on:

I found a species sketch labeled L. meleagris which looks accurate except for the colours, which appear blue/green rather than pink/orange. I know you mentioned the colour change with ammonia, but the depiction is obviously of natural colouration. Do you know what’s up with the colour discrepancy?

Leucoagaricus meleagris
By: else
2009-06-12 06:28:04 NZST (+1200)

It is a bit hard to judge from the pictures, but as you said that the old specimens are pink – that points to La. meleagris, a smaller relative of La. americanus (much more common in the east of the USA, where it is warm and moist day and night).
Put ammonia on them and there will be a green reaction.
A widespread species, known from Hawaii, North America, Europe, Japan.

Created: 2009-06-11 18:05:13 NZST (+1200)
Last modified: 2010-11-04 19:10:30 NZDT (+1300)
Viewed: 518 times, last viewed: 2018-04-21 04:05:14 NZST (+1200)
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