Observation 81037: Hypholoma lateritium (Schaeffer) P. Kummer

When: 2011-10-22

Collection location: Pachaug State Forest, Connecticut, USA [Click for map]

Who: Bill (boletebill)

No specimen available

Based on the cap color most people might call this a Brick-cap, Hypholoma sublateritium. These were growing on a decayed White Pine stump and the gill color seems more consistent with H. capnoides but I’d listen to other points of view if anyone finds sublateritium on conifers.



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From Basidiomycota Website
By: walt sturgeon (Mycowalt)
2011-11-12 03:54:54 WIB (+0700)

Hypholoma lateritium (Schaeff.) P. Kumm., Führ. Pilzk. (Zwickau): 72 (1871) … Rarely on wood of conifers but known on Picea and Pseudotsuga spp

I’m not so much resisting lateritium as a determination
By: Bill (boletebill)
2011-11-12 03:48:56 WIB (+0700)

as I am questioning the folklore that lateritium belongs with hardwoods and capnoides belongs with conifers. If this is indeed lateritium, and it does look like that, then it’s strong evidence that lateritium fruits on conifers and also that looking for wood decay fungi to obey my preconceptions about substrate specificity is misleading if not foolish.

By: Irene Andersson (irenea)
2011-11-12 03:09:18 WIB (+0700)

I had a look there, and I dare to say that the intensely red ones are not capnoides. I suspect that some participants are focusing on the common name “Smokey-gilled” and are not aware of other species.

http://www.flickr.com/photos/cornish_jim/4994656532/ is a typical lateritium.
A couple of Leratiomyces ceres are dwelling there too, also Hypholoma fasciculare.

Thanks for comments Irene
By: Bill (boletebill)
2011-11-12 01:30:15 WIB (+0700)

I did look over the wood-stump well and it was definately not hardwood and it was in a pure stand of White pine filled with many dead, downed and rotting pines. I notice that many of the pics on MO of H. capnoides show a paler, yellowish fruitbody but if you care to take a look at the numerous photos of H. capnoides at www.mycoquebec.org you’ll see many pics of capnoides as red as these or close to it. This mushroom, in this ob, is what I call H. capnoides in CT and it is common on dead pine and a decent edible, but certainly not choice.

It would be easy
By: Irene Andersson (irenea)
2011-11-12 00:45:16 WIB (+0700)

to tell if it’s capnoides. It has a pleasant taste, resembling green peas.
H. lateritium is slightly bitter (but not as awful as fasciculare). I have also wondered what sublateritium meant (now considered to be a synonym to lateritium). But I have never seen capnoides as red as this one. Another difference is a hygrophanous cap in capnoides, not in lateritium.

But I wonder, how can you be sure that it’s a pine stump? Did you examine the wood?

East coast H. capnoides
By: Bill (boletebill)
2011-11-12 00:24:26 WIB (+0700)

I don’t know about the west coast version but in New England and eastern Canada H. capnoides has a red cap.

Red cap is one clue
By: Bill (boletebill)
2011-10-31 20:32:32 WIB (+0700)

for a diagnosis of lateritium (what happened to sublateritium?) but is there any consensus that cap color eliminates capnoides? And my experience with Brick caps (H. lateritium) is that they fruit on hardwoods stumps and debris. This was growing on an old moss covered White Pine stump.

Created: 2011-10-31 05:22:20 WIB (+0700)
Last modified: 2011-11-12 01:00:54 WIB (+0700)
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