When: 2017-08-16

Collection location: Capital Area Greenbelt, Harrisburg, Pennsylvania, USA [Click for map]

Who: billyd

No specimen available

Under oak, not bruising anywhere. Taste pleasant, smell neutral. Ive notice the caps of these guys turning black after a while…


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By: I. G. Safonov (IGSafonov)
2017-08-21 14:55:52 PDT (-0700)

Yet another insufficiently understood taxon IMO, probably because of its morphological overlap with the NA concept of crocipodium (now that the latter has become a very popular name). Obs 249615 illustrates the point.

Looks a lot like
By: walt sturgeon (Mycowalt)
2017-08-21 14:23:18 PDT (-0700)

our L. rugosiceps.

Understood, but…
By: I. G. Safonov (IGSafonov)
2017-08-21 09:26:43 PDT (-0700)

…now there is a disconnect between your crocipodium vote confidence for and what you wrote in your last comment.

Crocipodium means ‘saffron foot’. Pictures of the European mushroom can be found at http://boletales.com/genera/leccinum/l-crocipodium/.

See M. Kuo’s page with regard to crocipodium in NA, but that info is 10 y.o.: http://www.mushroomexpert.com/....

A good description of the European crocipodium can be found in Den Bakker & Noordeloos (2005): “A revision of European species of Leccinum Gray and notes on extralimital species” – Persoonia 18, pp. 511-587

What I meant
By: walt sturgeon (Mycowalt)
2017-08-21 08:19:10 PDT (-0700)

is this looks like what I learned as Leccinum nigrescens and now call L. crocipodium. As for the taxonomy I am led to think that most American species may be different enough genetically to be separated from their European cousins. Those segregations are left to the DNA investigators and way out of my league.

I do see this species in lawns under red oak and beech.

‘American crocipodium’
By: I. G. Safonov (IGSafonov)
2017-08-20 20:31:07 PDT (-0700)

Are you saying it’s different from the European L. crocipodium, i.e., a separate taxon?

Dead Ringer
By: walt sturgeon (Mycowalt)
2017-08-20 20:21:53 PDT (-0700)

for American L. crocipodium.

By: I. G. Safonov (IGSafonov)
2017-08-20 20:16:34 PDT (-0700)

is a European taxon. M. Kuo treats it as a questionable entity in NA, but that information could be obsolete. According to Bessette’s BENA, crocipodium in NA can have dark caps when young, but they turn a paler color in age. Like with all core Leccinum, sequencing of well-described and photographed collections is the only way to sort these yellow-pored scaber stalks.

An additional note
By: billyd
2017-08-20 20:09:20 PDT (-0700)

I agree I am still confused about this situation, at some point in maturity they turn black? but there were many of these fruiting around large, mature red oaks, and I did notice the black, cracked caps in mature specimens that I see on the internet representing L. crocipodium.

Not convinced…
By: I. G. Safonov (IGSafonov)
2017-08-20 19:56:07 PDT (-0700)

…these are crocipodium. Without sequencing we’ll never know for sure.

These fellas
By: billyd
2017-08-20 19:39:36 PDT (-0700)

Were fruiting right next to Leccinum rugosiceps, I have watched them during lunch, fruiting after heavy storms for the entire past week. I thought they were the same, bc they had the same bruising, taste, smell, and feel, plus adjacent to each other. Especially when young and buttons, both look very similar. I thought maybe some just turned black for some reason. But thanks, even more diversity than I thought!

Created: 2017-08-19 06:19:43 PDT (-0700)
Last modified: 2017-08-21 18:13:14 PDT (-0700)
Viewed: 104 times, last viewed: 2018-08-24 14:17:16 PDT (-0700)
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