Observation 135939: Leccinum Gray

When: 2013-06-09

Collection location: Norcross, Georgia, USA [Click for map]

Who: Jimmy Craine (doctorghosty)

No specimen available

Proposed Names

31% (2)
Recognized by sight
46% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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One mycorrhizal bolete that I often see fruting from wood…
By: Dave W (Dave W)
2013-06-10 19:08:00 PDT (-0700)

is Suillus pictus. I have also seen mycorrhizal gilled mushrooms doing this. I think the spreading mycelium simply fails to distinguidh between soil and downed wood.

“Leccinum” seems like a good proposal for this one. But this specimen also reminds me of some of the species that seem to straddle a macro-trait boundary between Leccinum and Tylopilus. There have been a few newly erected genera like Sutorius and Harrya.

By: walt sturgeon (Mycowalt)
2013-06-10 16:27:36 PDT (-0700)

Tylopilus felleus, Boletellus chysenteroides, and Lactarius griseus come immediately to mind. But what I am saying is most any mycorrhizal mushroom can fruit on wood and appear to be lignicolous when technically it is not. I have seen numerous examples from Russula, Laccaria, Lactarius,etc.

By: Daniel B. Wheeler (Tuberale)
2013-06-10 14:49:43 PDT (-0700)

You mean like Boletus mirabiis? That’s the only one that comes to mind.

A very few mycorrhizal mushrooms grow on wood, even well-rotted wood.

Laccaria? Tuber? Rhizopogon? Amanita? Tricholoma? Russula? The list of non wood-growing mycorrhizal fungi goes on and on…

That’s why it’s so important when one is found so obviously on wood to note that feature. It might well yield a species name.

I think if any mycorrhizal mushrooms were known to fruit on rotting wood, rain forests such as those in Washington and Oregon would have examples. But there aren’t that many.

I will defer to examples, though.

Mycorrhizal mushrooms
By: walt sturgeon (Mycowalt)
2013-06-10 07:06:03 PDT (-0700)

often fruit on well rotted wood, especially in very wet conditions.

By: Daniel B. Wheeler (Tuberale)
2013-06-09 20:47:26 PDT (-0700)

On wood?

Created: 2013-06-09 15:48:48 PDT (-0700)
Last modified: 2013-06-10 07:03:37 PDT (-0700)
Viewed: 56 times, last viewed: 2017-06-15 23:48:38 PDT (-0700)
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