Observation 30969: Cortinarius fulmineus sensu Moser
When: 2009-12-26
No herbarium specimen

Notes: This specimen was collected by Darvin DeShazer and the first two in-situ photos are his.
We thought that it looked very similar to MO# 28207. http://mushroomobserver.org/28207?search_seq=1140586

In fact, the spores were very similar in shape and size, measuring approx. 8.6-9.9 X 5.3-6.2 microns. However, the KOH reactions were not identical. Instead of all the parts turning bright red, the cap and stipe turned a reddish brown and the flesh areas only stained perhaps a pinkish buff.(see 3rd photo) I wonder if the KOH staining reaction is somewhat age/maturity dependent? The odor was not strong and the taste was mild.

[admin – Sat Aug 14 02:05:18 +0000 2010]: Changed location name from ‘Rockville Hills Regional Park, Solano County, California’ to ‘Rockville Hills Regional Park, Solano Co., California, USA

Proposed Names

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
This is the most common species in Section Fulvi under Live Oak.
By: Dimitar Bojantchev (dimitar)
2009-12-28 06:38:58 PST (-0800)

This observation matches in every way numerous collections of the same species that I have. No, the KOH does not vary that much with age, and particularly not in this case — the KOH reaction you describe is exactly the same as my findings. This is the most common of the Fulvi under Live Oak in No. California.


Created: 2009-12-27 16:12:56 PST (-0800)
Last modified: 2011-09-23 14:36:08 PDT (-0700)
Viewed: 97 times, last viewed: 2016-10-23 04:27:12 PDT (-0700)
Show Log