Observation 193941: Entoloma subgenus Leptonia (Fr. : Fr.) Noordel.
When: 2014-12-07
Who: zaca
No herbarium specimen

Notes: Growing in an habitat dominated by Quercus trees.

Proposed Names

39% (2)
Recognized by sight
45% (2)
Recognized by sight: gills very weakly and inconsistently marginate

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Well …
By: zaca
2014-12-18 07:09:04 JST (+0900)

The gills are clearly “greyish pink” but not with “strongly contrasting blackish blue crenulate to denticulate edge”, though some blackish blue colour is visible at the edge.

By: Christian (Christian Schwarz)
2014-12-18 06:56:55 JST (+0900)

While it may be a variable character, I’m not sure that I would go ahead to say that I know what really matters. I have no evidence to suggest that the presence of cheilocystidia is more important than their pigment.

Also, I read the grammar of the description differently: Greyish pink comes after “then”, indicating the color of the gill face at maturity, followed by the description of the margin. I interpret this latter bit to be separate – which makes more sense to me because the marginate gill edges of most species that have them are usually most strongly contrasting when young.

Either way, I think the overturned mushroom is plenty mature – the cap is expanded, wavy around the edges, and shows pink spores on the gill faces.

As you know …
By: zaca
2014-12-18 06:49:09 JST (+0900)

that is a very variable character and what really matters is the corresponding cheilocystidia. Besides, that appears after “then”, which means the stage at maturity and I cannot says if it is mature or not.

Confusion in terms
By: Christian (Christian Schwarz)
2014-12-18 06:43:43 JST (+0900)

I don’t mean anything about the adnate gills (emarginate sounds like it is related to the term I used, but it is not).

What I meant by marginate is with a strongly contrasting edge (as noted in the last line of the description you provided):
“with strongly contrasting blackish blue crenulate to denticulate edge.”

The gills of the mushrooms in this observation are mostly concolorous.

Hi Christian,
By: zaca
2014-12-18 06:33:01 JST (+0900)

Entoloma serrulatum can have adnate gills, according to the description given in Flora Agaricina Neerlandica, available at http://www.mycobank.org/
I quote from there:
“Lamellae, L = 20-40, I = (1-)3-7, moderately crowded, adnate or emarginate, rarely subdecurrent, arcuate, then segmentiform, rarely ventricose, sometimes transvenose, pale to fairly dark blue when young. especially near margin of pileus, then greyish pink with strongly contrasting blackish blue crenulate to denticulate edge.”

Created: 2014-12-18 06:11:47 JST (+0900)
Last modified: 2014-12-18 08:37:53 JST (+0900)
Viewed: 58 times, last viewed: 2016-10-28 00:20:24 JST (+0900)
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