Observation 11971: Hypomyces (Fr.) Tul. & C. Tul.
When: 2008-10-04
No herbarium specimen

Notes: I don’t really know that this is Hypomyces. But it seems reasonable given the area. The host mushroom is unrecognizable at this stage, but the most common mushrooms nearby were either Russulas or Amanitas. This parasite has taken over the entire stipe and most of the cap, making it into a crusty white coccoon. If you can positively identify this by the photos, you’re better than I am.

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By: Paul Derbyshire (Twizzler)
2008-10-05 11:45:04 CDT (-0400)

H. hyalinus and other Hypomyces can distort the growth of its host (extremely, in some cases, and famously in the case of H. lactifluorum), so I’m not sure how much your specimen’s stem thickness can tell us about the host species’.

Agree and disagree.
By: Daniel B. Wheeler (Tuberale)
2008-10-05 10:21:07 CDT (-0400)

I suspect (cannot prove) the base mushroom was a Russula, based solely on the large thick stalk. Other than A. muscaria, I don’t see many thick-stalked Amanitas. I hope I’m wrong – H. hyalinus would be a first for me.

By: Paul Derbyshire (Twizzler)
2008-10-05 08:53:40 CDT (-0400)

Hypomyces hyalinus fits this to a T, and grows on Amanitas. The Hypomyces I’m aware of that grow on russulas are red and green, rather than white.

Created: 2008-10-04 22:45:55 CDT (-0400)
Last modified: 2008-10-04 22:45:55 CDT (-0400)
Viewed: 7 times, last viewed: 2016-10-23 20:47:35 CDT (-0400)