Observation 73705: Clitocybe costata Kühner & Romagn.

When: 2011-07-30

Collection location: Thoiry, France [Click for map]

Who: Douglas Smith (douglas)

No specimen available

Found under spruce and fir.

These have been bothering me for 2 years now. I was reading Funga Nordica late last year, and came across a note that C. costata can be id’ed by using KOH, and it will make the cap go chestnut brown. Where with something similar like C. gibba (or I. gibba) there will be no reaction to KOH. But when I read this it was after the season. So, waiting for 10 months or so, finally they come back around, except I have to move to California right after, and my KOH was already packed up. Packing the mushrooms and taking them to California, I am able to check this out a week later. Unpack the KOH, and give it try. Wadda-ya-know? These go chestnut brown in KOH. Also I found C. gibba (or I. gibba), and those do not change in KOH at all. Cool little fact to use in Clitocybe id, only took a year and travel to two continents to try it out.

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Created: 2011-08-09 18:27:09 CDT (-0400)
Last modified: 2011-08-09 18:27:10 CDT (-0400)
Viewed: 39 times, last viewed: 2017-06-09 19:54:23 CDT (-0400)
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