Observation 103422: Hericium Pers.
When: 2012-07-30
Herbarium specimen reported

Notes: On cottonwood.

Proposed Names

30% (2)
Recognized by sight
9% (4)
Recognized by sight
28% (1)
Used references: According to MO, H. weirii has been deprecated to H. abietis. But H. abietis should only grow on conifer (true fire = Abies). So maybe H. weirii is actually a different species than H. abietis that grows on cottonwood?

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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H. corraloides
By: Daniel B. Wheeler (Tuberale)
2012-08-03 11:39:51 CDT (-0400)

must grow differently here, then. It can be massive, fruiting in 50-80 lb. masses, usually from conifer logs (which Smith, Smith & Weber says is unlikely). One of the truly ginormous fruitings found here. I have not eaten it yet, because I find it when the spines are old and longer than 1cm (up to 4cm). It usually is well-infested with maggots by that time.

Older H. corraloides should have much longer spines than this obs. Plus, they should be much more abundant and typically pendant, forming combs of spine from the larger branchlets.

This is forcing me to reconsider my concept of the genus … again. Just when I thought I was comfortable with identification from substrate and spine length alone, you’ve challenged me again.

I would be very interested in hearing of similar fruitings from conifers, too, especially conifers that were large enough to have substantial heartwood areas. Until further notice, I think this may be fruiting on the heartwood and therefore may exhibit non-typical growth habits.

Hi Daniel
By: Edward Barge (landsnorkler)
2012-08-02 22:34:17 CDT (-0400)

It could be growing from the heartwood as it was fruiting from the center of the stump. I do plan on trying to cultivate this guy. I’ve just started some pieces on agar.

As far as the identification, to me this fits the description for H. coralloides nicely. Spines under 1 cm, spores within range.

By: Daniel B. Wheeler (Tuberale)
2012-08-01 12:41:55 CDT (-0400)

This looks to be a very old cottonwood. Could the Hericium be growing on the heartwood (inner core)? That could affect how it is growing as well as what it is growing on. Most Hericiums are sapwood degraders.

This would be very interesting to cultivate, I think. Easy to grow too. Most Hericium will colonize a spacebag within 28-35 days at 77 degrees; a bedlog will take a little longer, but not by much. Wonder if the mycelium would transfer to a Lodgepole pine in your area, confirming or denying growth on hardwoods and softwoods.

Only to find
By: Daniel B. Wheeler (Tuberale)
2012-07-31 19:21:21 CDT (-0400)

Heridium ramosum has now been deprecated to H. corraloides. Apparently Hericium weirii. I wonder if this is one of those oddball Montana species that actually grows on both hardwoods and cottonwoods?

On cottonwood
By: Daniel B. Wheeler (Tuberale)
2012-07-31 19:15:40 CDT (-0400)

narrows things down to either H. corraloides, H. erinaceus, or H. ramosum. H. erinaceus would have much longer spines, and would be bunched together en masse. H. corraloides normally has spines longer than 1cm. I guess I’ll suggest H. ramosum as a last resort.

By: Edward Barge (landsnorkler)
2012-07-31 17:35:57 CDT (-0400)

it’s a beauty, though it’s not Hericium americanum. Spores are 3-4 × 3ish um. Spines average less than 1 cm long. I didn’t find any that were over 1 cm.

By: Daniel B. Wheeler (Tuberale)
2012-07-31 01:03:24 CDT (-0400)

Nice collection!

Created: 2012-07-30 20:52:04 CDT (-0400)
Last modified: 2012-07-31 19:28:07 CDT (-0400)
Viewed: 130 times, last viewed: 2016-10-28 06:24:48 CDT (-0400)
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