Observation 171031: Leccinum aurantiacum (Bull.) Gray

When: 2014-07-22

Collection location: Lackawanna State Forest, Thornhurst, Lackawanna Co., Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

With conifers. Internal stipe context staining variably purplish. Black scabers.

I don’t see a pale stage to the scabers. My only doubt these are aurantiacum.

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Assuming that molecular analysis…
By: Dave W (Dave W)
2014-07-24 08:45:39 CDT (-0400)

has not yet resulted in these NA red-capped scaber stalks getting a new species name, I think that status-quo, ie. calling them aurantiacum, may be as good as it gets for now. Many of our eastern NA fungal taxa presently reside within this unfortunate “limboclature”.

Scaber-facon… LOL
By: I. G. Safonov (IGSafonov)
2014-07-23 20:17:18 CDT (-0400)

Your recipes look interesting — I should try them sometime…
I make mushroom soups with them and I like the liquid turning dark. I frequently mix them with dried porcini I buy from nwwildfoods.com. I also put them in stewed vegetable dishes.

I guess calling them either L. vulpinum or L. piceinum would probably be incorrect, too, as both are European taxa and the NA conifer-loving species could very well be genetically different…

Thanks Igor.
By: Dave W (Dave W)
2014-07-23 18:56:37 CDT (-0400)

This clears up some of the apparent confusion regarding the name Leccinum aurantiacum. So do you think the name vulpinum should be applied to these conifer associates?

They are an excellent edible. But I don’t dry these. I find that dried Leccinums tend to turn the rehydrating liquid dark. My favorites to dry are edulis and separans. My favorite thing to do with these (and other) robust scaber stalks is to slice fairly thin, fry in butter until the slices begin to get a bit crispy, and then use as bacon. Homemade blueberry pancakes with a side of scaber-facon is a favorite summer breakfast here. Also, BLT on Toast (bolete, lettuce, tomato) is a great lunch.

Forgot to add…
By: I. G. Safonov (IGSafonov)
2014-07-23 18:33:35 CDT (-0400)

…that these are delicious and dry very well for future use. :)

By: I. G. Safonov (IGSafonov)
2014-07-23 18:32:19 CDT (-0400)

I doubt too this is L. aurantiacum as it’s a European species associated with hardwoods.
Leccinum aurantiacum is probably a European species, and no records are known from North America. The descriptions of L. aurantiacum in North American literature represent a mixture between a L. vulpinum-like, conifer associated taxon and North American species that are associated with broad-leaved trees, such as L. insigne, and L. brunneum.”
—den Bakker & Noordeloos, 2005

Yours, I think, is the same cryptic taxon that grows with pitch pines in the NJ Pinelands (in prodigious quantities in some years) in May and then from late August through early November.

It would be nice to sequence all conifer-associated Eastern North American red/orange cap scaberstalks and compare them with the Old World counterparts. In light of the pioneering studies by the above researchers, it’s strange that it hasn’t been done yet.

Created: 2014-07-23 17:11:36 CDT (-0400)
Last modified: 2014-07-23 17:11:46 CDT (-0400)
Viewed: 47 times, last viewed: 2017-11-11 01:40:10 CST (-0500)
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