Observation 129993: Pluteus sect. Celluloderma Fayod

Growing on an old log, probably Madrone.
Caps up to 4.5 cm across, striate to slightly rugulose, soft.
Spores ~ 6.8-7.7 X 5.4-6.6 microns. Q(ave.) = 1.19.
Gill cystidia not abundant, mostly utriform to oblong.
No odor detected.

Proposed Names

29% (1)
Recognized by sight
76% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Alfredo Justo (Fredo)
2013-03-11 08:46:59 CDT (-0400)

yes, P. ludovicianus as defined by Minnis & Sundberg in the Celluloderma paper probably belongs in the cinereofuscus group, with the very similar European species Pluteus pallescens. This collection probably belongs also in that group.

This group still needs more work to unravel all the species and their distributions. It is hard to tell if something described from the SE United States will also occur in California, some Pluteus are happy travelers, others seem to be confined to broad but specific areas.

Microscopic features
By: Alan Rockefeller (Alan Rockefeller)
2013-03-11 01:47:02 CDT (-0400)

The microscopic features I can see roughly match Pluteus ludovicianus. This species was described by Murrill from Louisiana in 1917. The macroscopic description is somewhat similar also.

Try the key on page 6 of the Pluteus sect. Celluloderma paper.

By: Alfredo Justo (Fredo)
2013-03-10 20:46:05 CDT (-0400)

probably in the cinereofuscus group

Created: 2013-03-09 11:04:03 CST (-0500)
Last modified: 2013-03-20 20:08:27 CDT (-0400)
Viewed: 109 times, last viewed: 2017-10-13 15:35:16 CDT (-0400)
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