Observation 132932: “Deuteromycota” R.T. Moore

When: 2013-05-04

Collection location: Luzerne Co., Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Common white mold on morchella species.

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Recognized by sight

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The morel is an apple orchard type.
By: Dave W (Dave W)
2013-05-05 22:24:45 CDT (-0400)

Here is my post for the morels (same ones as seen in this post, only with the mold turned away).

I don’t think Patrick’s comment was meant to suggest that the mold seen on these morels is M. elata mycelium. In 20 years of hunting this old orchard, I have not ever found a black morel there (now known as M. angusticeps). Actually, Patrick was making the point that he thinks this does not look like morchella mycelium.

I think that if morchella parasitizes morel mushrooms, we would have known about this by now. White mold on morel mushrooms is common.

This is not M. elata
By: Daniel B. Wheeler (Tuberale)
2013-05-05 22:05:41 CDT (-0400)

and therefore the citation means nothing.

This appears to be the “blonde” morel, and may be mycorrhizal.

Thanks Danny.
By: Dave W (Dave W)
2013-05-05 21:28:17 CDT (-0400)

According to Wikipedia, this narrows it down to about 25,000 species :-)

If I find more of this, I’ll look at it under my 400X scope.

I think that morel mycelium is more brownish
By: Patrick Harvey (pg_harvey)
2013-05-05 17:55:36 CDT (-0400)

There’s a photo of petri dishes with morel mycelia in Michael Kuo’s “Morels”. I found this illustration in an article on growing M. elata in culture: http://ars.els-cdn.com/...

We have quite of bit of white mold growing on Morchella in the West.
By: Daniel B. Wheeler (Tuberale)
2013-05-05 16:19:52 CDT (-0400)

Unusually common in wet years. I have considered this Morchella spores growing on Morchella. Usually foung on the caps.

I haven’t considered the question of whether this white mold…
By: Dave W (Dave W)
2013-05-04 23:15:33 CDT (-0400)

grows exclusively on morchella. But I do notice quite a bit of it on morchella. Usually, the mold is more prominent during periods of damp weather. But in this one particular old apple orchard I almost always end up trimming a few infected M. esculentoides.

I have also seen something similar to this (probably the same) on both M. angusticeps and M. punctipes (formerly considered an eastern NA version of M. semilibera).

Looks like Morchella starting to grow.
By: Daniel B. Wheeler (Tuberale)
2013-05-04 18:27:39 CDT (-0400)

Do you notice this growing exclusively on Morchella?

Created: 2013-05-04 14:04:10 CDT (-0400)
Last modified: 2013-05-05 22:25:06 CDT (-0400)
Viewed: 254 times, last viewed: 2017-12-28 00:59:48 CST (-0500)
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