Observation 34432: Inocybe phaeocomis var. major (S.W. Peterson) Kuyper
When: 2010-01-29
Herbarium specimen reported

Notes: Found under live oak.

The first micro-shot is of the gill edge in Meltzer’s at 400×. Here are the metuloid encrusted cystidia, obs. on the edge and gill face.

The second micro-shot is of spores from the gill in Meltzer’s at 1000×. The spores are smooth, non-dextrinoid and slightly pointed. They are apr. 8.5-10 um long.

Using the Nishida key to the Inocybe of California, and using a few assumptions/observations… the top of the stipe is pinkish/lilac colored, the brown of the cap and stipe is slightly purple in tone. With the very shaggy base to the stipes, this seems to be more common in the Inocybe without cystidia on the bottom half of the stipe. So, with the key you get Inocybe phaeocomis var. major.

Unless someone has a better guess, I’ll go with it. Of course maybe John Brown would take a look at this id, and have a good laugh…

Proposed Names

86% (1)
Eye3 Eyes3
Recognized by sight
Used references: Nishida key of California Inocybe
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Erin Page Blanchard (CureCat)
2010-03-01 13:10:52 PST (-0800)

This is probably the same.
observation 32789

Spore shape and the slim cystidia
By: Irene Andersson (irenea)
2010-03-01 10:02:15 PST (-0800)

looks fine for phaeocomis/cincinnata, so it’s probably close. This has a more scaly cap and stem than I have seen or in any pictures I can find, and also much paler gills. But there is where I end up in the keys too. Are you sure that this species has ever been described..?

Created: 2010-03-01 09:05:51 PST (-0800)
Last modified: 2010-03-01 09:05:51 PST (-0800)
Viewed: 84 times, last viewed: 2016-10-23 17:15:33 PDT (-0700)
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