Observation 65536: Inocybe (Fr.) Fr.
When: 2011-04-13
Herbarium specimen reported

Notes: under blue oak.
collected by David Rust.

Images

141015
141016
141017
141018
sporedrop
141019
141020
pileipelis a trichohymeniderm.
141021
note curious elongated golden cells in pileus context.
141285
cap with low umbo.
141286
broken stipes, incompletely collected.
141287
141288
context pale orange, color unchanging with exposure.

Proposed Names

57% (1)
Eye3 Eyes3
Recognized by sight: silky fibrillose cap with low umbo (NOT peaked or conic), pruinose, long rooting stipe (incompletely collected).
Based on microscopic features: from spore drop: spores elliptical to bean shaped, smooth with speckled contents(some still moving around!), thick-walled, 12-13 × 5-6 microns; pileipelis a trichohymeniderm.
Based on chemical features: fruity, slightly unpleasant odor. KOH negative on cap.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Lactifer
By: Paul Sadowski (pabloski)
2011-06-07 20:57:36 PDT (-0700)

Could that tortuous long cell be a lactifer? It’s been useful to study the micrographs here. Thanks for them and the comments.

Congratulations
By: Martin Livezey (MLivezey)
2011-06-07 12:55:49 PDT (-0700)
a rare and unique Inocybe, according to Brandon Matheny…
By: Debbie Viess (amanitarita)
2011-06-07 12:44:16 PDT (-0700)

Hi Debbie,
I haven’t scoped the collection yet but we have obtained the ITS and this sequence is unlike anything we have sequenced to date and unlike anything sequenced from Europe to date. It is probably closely related to Inocybe bulbosissima, a European species evidently associated with Salix and about which I know next to nothing, based on ITS similarities. The most closely related sequences (95% similar) are from samples of Kobresia (Cyperaceae) ectomycorrhizal roots taken from alpine meadows in the eastern Himalaya of China.

Your Blue Oak associate is part of the greater Inocybe rimosa complex but at present most likely lacks a name. A comparison with the Japanese literature is probably in order, but I have not done that yet. Brad Kropp, from Utah State, and I are in the works of documenting 8 species of the I. rimosa complex from Utah and Washington (five of which will be described as new, mostly from high elevation conifer stands or with Mountain Mahogany) and yours matches none of them.

Good find!

Brandon

patience…
By: Debbie Viess (amanitarita)
2011-05-02 09:35:19 PDT (-0700)

Brandon wrote that it will be DNA analyzed soon.

So this seems to be Mallocybe
By: Gerhard Koller (Gerhard)
2011-04-17 15:57:00 PDT (-0700)

or maculata-group?

.
By: Debbie Viess (amanitarita)
2011-04-17 09:39:05 PDT (-0700)

collection in part sent to Brandon Matheny for DNA analysis.

Created: 2011-04-15 08:53:49 PDT (-0700)
Last modified: 2011-04-15 09:51:45 PDT (-0700)
Viewed: 289 times, last viewed: 2016-11-18 15:48:41 PST (-0800)
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