Observation 8065: Hymenopellis
When: 2008-06-13
No herbarium specimen

Notes: Two of these mushrooms were found in the same general area among mostly mixed hardwoods. They have the appearance of a Caulorhiza species in that they had a deep “tap root”. I got most of the smaller one.
They differ from the western C. umbonata in that the cap color is more yellow and the spores were definitely a light yellow rather than white. Also by my estimation the spores appeared to be at least twice as large.
Edit 2-7-2014; Checked spores from print.
Spores~ 13.2-16.0 X 9.2-10.9 microns.
Q(ave) = 1.50.

Proposed Names

-21% (3)
Eye3
Recognized by sight
52% (3)
Recognized by sight: The change in thickness of the stipe seems like Xerula.
12% (2)
Recognized by sight: This is a common mushroom throughout the south eastern area usually on berried roots or hardwood stumps The xerula magalospora have very large spores.
56% (1)
Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Microscopically
By: walt sturgeon (Mycowalt)
2013-01-27 18:37:10 AST (+0300)

It fits H. megalospora but see comments below.

http://mushroomobserver.org/95187

It is occasional in the central Appalachians and foothills. If not a good species, it should in my opinion deserve a varietal rank.

Not convinced its X. megalospora
By: Ron Pastorino (Ronpast)
2009-11-29 05:16:42 AST (+0300)

All the references I’ve found for that species show a mushroom with whitish, buff, creamy to brownish-gray caps. None mention a yellow to bright yellow cap. The same mushroom seems to appear in MO# 6178 from West Virginia and the local experts/mycologists did not have a name for it.

West Va.—west La. connection
By: Ron Pastorino (Ronpast)
2008-06-24 01:07:46 AST (+0300)

I knew there was something familiar about those mushrooms. They definitely appear to be the same species so I’ll go with the Xerula sp. until somebody comes up with something better.

Xerula sp.
By: Dimitar Bojantchev (dimitar)
2008-06-23 21:32:12 AST (+0300)

Xerula it seems like. It is highly unlikely that this one is the European Xerula radicata, but it does look like it a bit — http://mushroomhobby.com/Gallery/Marasmius/index.htm#Xerula_radicata

These do have interesting cystidia to look at. Never seen one on the West Coast though.

D.
Xerula sp. (unnamed)
By: Debbie Viess (amanitarita)
2008-06-23 17:38:15 AST (+0300)

This looks grossly identical to a yellow Xerula sp. that Rytas Vilgalys took back with him to Duke last summer for DNA sequencing. We found it at the NAMA W.VA foray, and Bill Roody claimed that it has been collected in the South with some regularity. Here’s a link to my original observation on MO:
http://mushroomobserver.org/image/show_image/6178?search_seq=1

Created: 2008-06-23 05:20:00 AST (+0300)
Last modified: 2014-02-08 03:29:50 AST (+0300)
Viewed: 145 times, last viewed: 2016-11-15 14:33:48 AST (+0300)
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