Observation 51911: Lyophyllum deliberatum (Britzelm.) Kreisel

When: 2010-08-29

Collection location: Thoiry, France [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found under spruce and fir.

The micro-shot is of a spore from the gill at 1000x in KOH. The spore is fusiod to ellipsoid, hyaline, smooth. The apr. size is 10 × 7 um.

Along with this under the scope, no cystidia were obs, basidia were 4-spored, clamp con. were obs.

It turns out (using Funga Nordica at least, don’t really have (or know of) any other Lyophyllum source), that the spores of Lyophyllum are rather diverse. There was really just one taxon listed with spores like this, and the blackening and lack of cystidia also matched. So, it looks like these are Lyophyllum deliberatum.

Putting an id on a Lyophyllum… someone stop me…

Species Lists


Proposed Names

29% (1)
Recognized by sight
86% (1)
Recognized by sight
Used references: Funga Nordica
Based on microscopic features: As described in the text.

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= Observer’s choice
= Current consensus


Add Comment
Yeah, maybe…
By: Douglas Smith (douglas)
2010-09-02 08:24:34 PDT (-0700)

I actually saved and dried these. With the last trip, and looking at all kinds of stuff, I’m kinda inspired to go after genera I’ve never bothered with before. I’ll try to get to these under the scope at some point. In the field they didn’t show any black on them, but I noticed when I got home there is that black smudge on the stipe. I’m still not sure if that is a staining reaction, or just some sort of dirt. But it is rather black, and there was not any burnt ground out there, so I don’t know.

Oh, there wasn’t any significant odor on these…

Could be semitale
By: Irene Andersson (irenea)
2010-09-02 07:04:10 PDT (-0700)

if it has a farinaceous smell – but you still have to check the spores.

Created: 2010-09-02 02:20:06 PDT (-0700)
Last modified: 2010-09-21 07:28:19 PDT (-0700)
Viewed: 74 times, last viewed: 2019-02-05 10:20:08 PST (-0800)
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