Observation 117868: Gamundia striatula (Kühner) Raithelh.

When: 2012-10-05

Collection location: West Forks, Maine, USA [Click for map]

Who: Linas Kudzma (baravykas)

Specimen available

Notes:
A small group of mycenoid mushrooms with a tan radially striated cap with a darker central depression. The long graceful stipe is glabrous and looks “polished”. Found in mixed woods along the Dead River near West Forks, ME. The spores are ellipsoid with a distinct apiculus and the surface appears very subtly roughened as seen with selective focusing under DIC illumination. Spore print is white and the 20 spore average was 6.2 × 3.9 microns, Qm = 1.58.

The apparent surface texture of the spores is very slight and I have not totally ruled out that this is an artifact of internal structure.

Images

286167
286168
286169
Distinct apiculus and the surface appears very subtly roughened as seen with selective focusing under DIC illumination. 20 spore average was 6.2 × 3.9 microns, Qm = 1.58.

Proposed Names

-55% (1)
Recognized by sight
Based on microscopic features: The spores are ellipsoid with a distinct apiculus and the surface appears very subtly roughened as seen with selective focusing under DIC illumination.
vjp
-23% (2)
Recognized by sight
62% (3)
Eyes3
Used references: Antonin & Noordelos: “A monograph on the genera Hemimycena, Delicatula, …”

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
If you look at…
By: Dave W (Dave W)
2017-12-08 21:42:14 MST (-0700)

online images of G. striatula and C. vibecina, there are examples that appear to be visually indistinguishable. If I manage to find this(?) again next year, I’ll try to get a better read on spore ornamentation.

I’ll be sorting through stuff soon. When is a good time to mail you another bunch of Entoloma/Inocybe?

Thanks Dave …
By: Linas Kudzma (baravykas)
2017-12-08 12:59:49 MST (-0700)

your observation indeed looks like this. Maybe I’ll sequence mine sometime, but this is not a group I’m too interested in.

Linas

Hi Linas.
By: Dave W (Dave W)
2017-12-08 07:55:35 MST (-0700)

In relation to this observation of yours, I thought you may be interested in the one seen here obs 225477, as well as others seen via links found within the comments.

Interesting ..
By: Linas Kudzma (baravykas)
2012-11-26 05:03:56 MST (-0700)

I need to read up on Gamundia striatula.

Spore print
By: Linas Kudzma (baravykas)
2012-11-25 12:15:16 MST (-0700)

was taken on a glass slide and is relatively strong. Maybe this is a Mycena after all.

Spore print is white ..
By: Linas Kudzma (baravykas)
2012-11-25 12:13:17 MST (-0700)
Spore print
By: Christine Braaten (wintersbefore)
2012-11-25 11:45:40 MST (-0700)

While Rhodocybe prints can be very light and not obviously pigmented, they should not ever be white, maybe try scraping the spores into a pile with a razor blade to get a better idea of the color.

Created: 2012-11-25 11:38:39 MST (-0700)
Last modified: 2012-12-23 08:25:01 MST (-0700)
Viewed: 230 times, last viewed: 2018-03-19 23:32:27 MDT (-0600)
Show Log