Observation 21622: Helvella villosa Schaeff.
When: 2009-06-03
Herbarium specimen reported

Notes: Under redwood, near Marasmius plicatulus.

Looks sort of like Helvella coria:http://www.mushroomexpert.com/helvella_corium.html
But not as black. The stipe in particular is rather tawny in one specimen, medium grey/black in the other.

Fertile surface somewhat more cuplike in youth, flattening or recurving and splitting in age.

Entire underside minutely pale-scurfy.

Paraphyses long, slightly swollen at tip.
Asci tips not amyloid.
Spores 14.6 × 12.2 microns, no oil droplet?, broadly oval.
Cells of undersurface tufts irregular to inflated-cylindrical and in chains.


Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz
Cells of tufts on underside in chains.

Proposed Names

17% (3)
Recognized by sight: Since Alan’s guessing Gyromitra sp., I’m going to throw in the Helvella sp. guess since that’s my first impression of it. Isn’t there an oil droplet in the spores difference between these genera?
73% (4)
Eye3 Eyes3
Recognized by sight: Oval shaped spores match species description… No oil droplet??

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Erin Page Blanchard (CureCat)
2009-06-04 20:19:32 COT (-0500)

" Helvella villosa is brownish-grey on the inside, where
the spores are formed, and lighter grey on the
outside, which is covered with fine hairs. Helvella
macropus is a similar species and probably more
common here. The best way to distinguish them
is by the spores. H. villosa spores are oval, with
one large oil drop. Those of H. macropus are lon-
ger, more spindle-shaped, with one large and two
small oil drops. These species used to be grouped
with the cup fungi (peziza), but cup fungi don’t
have oil drops in their spores. Helvellas do. "

The spores of Gyromitra usually have 2 oil droplets, while Helvella usually has 1.

By: Shane Marsh (Mushane)
2009-06-03 20:09:24 COT (-0500)

im heading up there tomorrow for a hunt, been finding some mushrooms around town, glad to know somethings popping up.

oooo, it’s stump the stars time!
By: Debbie Viess (amanitarita)
2009-06-03 19:17:36 COT (-0500)

I see where you would want to make it into H. corium, but that doesn’t look like a smooth stem in your photo; could it have a Hypomyces overgrowth? More photos of other fruit bodies?

Interesting find.

Created: 2009-06-03 13:47:05 COT (-0500)
Last modified: 2009-06-03 13:47:05 COT (-0500)
Viewed: 173 times, last viewed: 2016-10-23 12:36:54 COT (-0500)
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