Observation 111161: Mycena (Pers.) Roussel

When: 2012-09-22

Collection location: Roberts Property, Cumberland Co., Tennessee, USA [Click for map]

Who: Steve Roberts (Mushroom World)

No specimen available

growing on and around hardwood stump
light brown spore; elliptical, smooth
9 – 11 × 5 – 6 um

Proposed Names

-27% (2)
Recognized by sight
41% (4)
Recognized by sight: It still looks like a Mycena to me. Does it really have brown spores? How many prints did you make? Could someone have switched them? Do the gills turn brown as the mushrooms mature? Can you get some pics of the undersides of the mushrooms using macro/flash? Spores with or without a germ pore?
-7% (5)
Recognized by sight: On wood, brown spores
Based on microscopic features: Spores elliptical, smooth. Please check to see if this collection has cheilocystidia/pleurocystidia.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
more on spores
By: Steve Roberts (Mushroom World)
2012-09-28 02:04:20 CDT (-0400)

Alan, I only got one spore print, I am sure it was light brown, and there was no one around who could have made a switch. The gills turned grayish brown as the specimens aged. I am unable to get a presentable picture of the gills now, due to their aged condition.

I did re-examine the spores (see added photo) and I would say there is no obvious apical pore. Note on one of the spores in the photo(upper left) a small apicular projection. This was present on some of the spores -maybe 1 in every 6 or 7 spores, approximately.

Regarding cystidia, I cut the edge of some gills, did a squash mount in Congo Red, and examined them at 400X. I posted some pics of what I observed.

Yes, I got a good spore print on a glass slide
By: Steve Roberts (Mushroom World)
2012-09-25 01:38:06 CDT (-0400)

and was very surprised when they weren’t white. I thought these looked a lot like Mycena inclinata, which I have found not far from these on various occasions -and it is getting to be the right time of year for those. The spore print was rusty brown or light brown.

By: Danny Newman (myxomop)
2012-09-25 00:41:47 CDT (-0400)

did you print these, or are you judging the spore color by the color of older gills? they appear to be Mycena, but that can’t be so if the spore print is any shade of brown.

Created: 2012-09-25 00:06:57 CDT (-0400)
Last modified: 2016-08-30 19:42:53 CDT (-0400)
Viewed: 101 times, last viewed: 2017-06-14 04:31:56 CDT (-0400)
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