Observation 60512: Cortinarius casimiri (Velen.) Huijsman

When: 2010-12-04

Collection location: Tualatin Hills Nature Park, Beaverton, Washington Co., Oregon, USA [Click for map]

Who: Sava Krstic (sava)

No specimen available

Growing in a mixed forest. Cap 4.2cm. Stem 7cm, dark brown inside, hollow in the top half. Flesh thin, brown, no particular odor. No remnants of partial veil seen under hand lens. Spores brown, large, 12×7 microns. No cystidia observed; what shows in the micrograph I’m interpreting as basidioles.

Species Lists



Proposed Names

-85% (1)
Based on microscopic features: No cystidia observed

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Irene Andersson (irenea)
2010-12-16 03:52:58 CST (-0500)

looks like a good idea. If not the same, at least very close.

I was wondering a bit about the shape of the spores.. Maybe none of them is seen in side view to show the apiculus well. They are less conspicious in the Inocybe species.

By: Sava Krstic (sava)
2010-12-16 00:40:58 CST (-0500)

The description on MatchMaker is close. In particular: “spores 9.2-12.3 × 5-7.4 microns, elliptic, moderately verrucose, light yellow”. As for the veil, of which I saw no trace on the stem, it says “margin joined to stem by a dense, whitish, filamentous cortina when young; later often with a fibrillose-membranous annulus”.

Pictures on the web look similar to this observation:




By: Irene Andersson (irenea)
2010-12-15 04:08:33 CST (-0500)

A ridiculous vote gets more attention than a simple comment, I guess :-)

The mushroom looks more like a Cortinarius (on gill colour and the shiny veil), but the spore shape looks like Inocybe.. I have no idea what this is.

By: Sava Krstic (sava)
2010-12-15 00:21:19 CST (-0500)

What do we want to say when we propose a name and give it a -3 vote?

Created: 2010-12-09 01:20:44 CST (-0500)
Last modified: 2018-03-19 23:50:51 CDT (-0400)
Viewed: 558 times, last viewed: 2018-11-07 02:05:35 CST (-0500)
Show Log