Observation 63663: Inocybe sensu lato (Site ID) (Inocybaceae)

Pale spore deposit
Cap is wet but not truly viscid, wrinkling in some parts.
Margin incurved but flaring out.
Context pallid.
Gills possibly notched or adnexed.
Stem solid, fibrous, snapping firmly, staining orange and turning brown. Bulb-ish base. Stems fused, covered in white mycelium at base. Fibers of stem’s surface staining or turning brown with age or bruising. Mycelial down seemingly blushing in one spot.

Firmly ‘planted’ in the ground, really had to dig it up. A group of 8-10 growing scattered through out the humus in a pine tree plantation.

I am posting this now, but waiting to look at the spores and gills. Any suggestions for this part are welcome.

Update, the cap remains smooth to the touch but isn’t tacky. Fibers on the stem have aged to a dark reddish brown.
Spores show a yellow tinge under the scope’s light. very very lightly yellow.
Update, after leaving a piece of the cap on a slid e for 24 hours , i can see that’s it’s much darker than I thought.

Species Lists


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Proposed Names

-50% (4)
Recognized by sight: possibly butyracea?
79% (5)
Recognized by sight

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

= Observer’s choice
= Current consensus


Add Comment
spore error
By: Britney Ramsey (Riverdweller)
2011-02-22 11:10:31 EST (-0500)

I left a bit of the cap on a slide for 24 hours, and guess what, ever so slightly BROWN.

By: Britney Ramsey (Riverdweller)
2011-02-21 11:04:00 EST (-0500)

thank you for the link. I still have some pretty healthy looking sections of the entire cap, gills, and stem.
I don’t mind admitting I have no clue what I’m doing!! I just placed one of the sections of cap on another slide and will leave it to see if more spores drop.

The previously posted spores dropped onto the slide, so I know they are mature. They were sitting on the same surface (large plate) as another specimen. Maybe I pulled a dummy and grabbed the wrong slide? I don’t think so, (neither specimen had a brown print) but I can’s see what else could explain what I think I saw for color and what the actual information points to.

“…Indeed Horak (2005) treats I.
phaeoleuca as a synonym of I. splendens in a
mycofloristic treatment of European Agaricales. The
species as a whole can be roughly characterized as
having smooth spores, metuloids on the edges and
sides of the lamellae, the absence of cortina, an
almost entirely caulocystidiate stipe and a basal bulb.”

That came from your link,, guess I have a good starting place!

The spores
By: Irene Andersson (irenea)
2011-02-21 10:42:23 EST (-0500)

in the photo don’t look extremely pale.

I think you will find this species in the Splendentes group (almost the whole stem covered with caulocystidia, no cortina, and smooth spores).

There are some spring species described from the PNW and a key to the whole group is

Some Inocybe…
By: Matt Sherman (Shermanii)
2011-02-21 10:23:14 EST (-0500)

Some Inocybe have yellow-brown spore prints.

But not pale spore prints (at least that I know of).

which Inocybe have yellow spores?
By: Britney Ramsey (Riverdweller)
2011-02-21 09:32:26 EST (-0500)

I’m looking through every source I have online and nothing ever mentions pale to whitish-yellow spores.

Inocybe is a huge genus. Anyone with a suggestion towards which species have pale to yellowish spores?

Noah mentions the fibers on the cap, but that cuticle peels away completely and solidly, not in fibers. Am I misunderstanding his comment?

Thanks for all your help on this, I’m still not sold on Inocybe because of the spores, but I really know nothing more than what I scratch together each time.

The stem sure does look like lots of examples of Inocybe, as do the gills. But pale spores?

Rhodocollybia with pleurocystidia?
By: Matt Sherman (Shermanii)
2011-02-20 21:20:38 EST (-0500)

Do any Rhodocollybia have pleurocystidia?

By: Britney Ramsey (Riverdweller)
2011-02-20 21:10:40 EST (-0500)

I don’t believe I actually captured the cheilocystidia, I loaded the pleurocystidia.

I still have a large portion of this cap, as it’s a hardy one. I will try again tonight or tomorrow morning.

Matt, will do
By: Britney Ramsey (Riverdweller)
2011-02-20 20:54:19 EST (-0500)

can load them now.

By: Matt Sherman (Shermanii)
2011-02-20 20:43:02 EST (-0500)

Could you check the shape of cheilocystidia?

spores were pale yellow
By: Britney Ramsey (Riverdweller)
2011-02-20 20:10:16 EST (-0500)

I looked through tons of Inocybe info, everything talked about some variation of brown spore print. I am not certain of anything as far as ID, however the spores were not in any way brown. Am I missing some species that have pale yellow-ish spores?

By: Matt Sherman (Shermanii)
2011-02-20 11:18:52 EST (-0500)

I couldnt see the fibers on the cap.
For some reason it just didn’t seem like Inocybe but I’m no expert.
Maybe since the spore print color was listed as “pale”. I assume pale to be closer to white than to brown.
Thanks for listing your reasons for your vote A.V.

What says Inocybe
By: Noah Siegel (Noah)
2011-02-20 10:13:27 EST (-0500)

-The gill spacing and color; has that creamy white “young Inocybe look”
-The appressed fibers on the cap
-The fibrous stipe.

By: Matt Sherman (Shermanii)
2011-02-19 23:14:01 EST (-0500)

What points to Inocybe?

Good notes Britney!

A.V. Can you shed some light?
By: Britney Ramsey (Riverdweller)
2011-02-19 20:34:34 EST (-0500)

on the reasons for your vote of Inocybe?

Created: 2011-02-19 20:06:29 EST (-0500)
Last modified: 2011-10-28 17:23:43 EDT (-0400)
Viewed: 234 times, last viewed: 2020-06-16 11:43:52 EDT (-0400)
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