Observation 141038: Cantharellus Adans. ex Fr.

When: 2013-07-25

Collection location: Perry, Maine, USA [Click for map]

Who: Terri Clements/Donna Fulton (pinonbistro)

No specimen available

On mossy ground under balsam fir in mixed woods. Cap is up to 2 cm., cinnamon, sunken with sharp central knob. Gills egg yolk color and decurrent. Stem pale egg yolk color, 5 cm. × 8 mm., solid, yellow flesh, snaps like piece of chalk. There was a large troop of these in the middle of the trail adjacent to a group of chanterelles. All FB’s in this group were about the same size (caps of 15-20 mm.) and shape. The uniformity of size and shape seems unusual. Caps turn darker in age and look to be parasitized by a white mold? I would appreciate any ideas.

9/9/13: For some reason these FB’s have stimulated my curiosity to the point that I have been like a dog on a bone on this obs since I first posted it so I’ve been doing a little research to try to figure out what it could be. According to the references I checked ( by G.Lincoff, D.Arora, G.Barron, R.Phillips, M.Kuo) the sharp central knob, inrolled margin in youth, decurrent forked blunt gills, tough stem which is longer than cap seem to point to Cantharellula umbonata. In the references cited FB colors vary: color of cap described from grayish-brown to smoky-grey to brown, gray or beige. Gills described as white to cream bruising yellow or red. Stem as white to grayish. As it seems clear that the FB’s in this obs were being parasitized (see photos 4 and 6 especially), I checked the USDA Hypomyces website to which M. Kuo refers and found that Hypomyces spp. parasitize many of the Agaricales order and some change the form, color and/or texture of the host (as in H. lactifluorum for example) such that as M. Kuo says: “Often the parasite fungus so transforms the host mushroom that it’s impossible to tell what the host was.” The USDA site has an interactive key which suggests that H. hyalinus may be the culprit here: “Covering host’s hymenophore, host’s pileus and stipe; host’s basidiomata turn firm” —this last statement perhaps accounting for the chalk-like stem. According to the website H. hyalinus is common in the NE USA and eastern Canada. I can attest to its common occurrence in Maine; within 10 meters of these FB’s it was parasitizing Amanita amerirubescens.


Sharp central umbo
Stunted growth
Stipe longer than cap
Decurrent forked gills and Hypomyces on cap margin
Inrolled margin, firm solid stem
Hypomyces on cap
Stunted growth

Proposed Names

33% (5)
Recognized by sight
-41% (5)
Recognized by sight: mossy ground, sharp umbo, long tough stem, inrolled margin, forked decurrent gills
Used references: See notes of 9/9/13 and Mushrooms of Quebec website and http://www.wisconsinmycologicalsociety.org/june-2006/
26% (1)
Recognized by sight: Doesn’t strike me as Cantharellus, I’ve seen Hygrophoropsis aurantiaca that have a blunt cap like the ones pictured

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Not umbilicate,
By: Terri Clements/Donna Fulton (pinonbistro)
2014-07-06 12:47:09 CDT (-0500)

my field notes and our collective recollections are that these had sharp central knobs—as I said “acute papilla” fits. So, I suppose they could be stunted or deformed C. roseocanus if it can have sharp umbos? Otherwise I guess we’ll never know unless we can find them again this year which is possible since we forage frequently on that trail.


What I see
By: walt sturgeon (Mycowalt)
2014-07-06 06:59:35 CDT (-0500)

are old fruitings that are not umbonate but umbilicate. Age and development may have caused the “look” of these. A wild guess would be the eastern version of C. roseocanus.

Hi Jacob,
By: Terri Clements/Donna Fulton (pinonbistro)
2014-07-04 14:18:21 CDT (-0500)

Can you point me to a Cantharellus sp that has an umbo like this one? It is what Peck describes as an acute papilla in Cantharellus umbonatus var. dichotomus (now Cantharellula umbonata): see http://archive.org/.... I’ve been looking hard but can’t find anything. I know the colors here are a little browner and yellower that what is described for this species but the references mention variability of color and it seems very possible I think that the parasite has changed the texture, form and color—just as Hypomyces lactifluorum changes its host Russula brevipes. In size and shape this looks very much like the C. umbonata buttons pictured on page 251 of George Barron’s “Mushrooms of Northeast North America.”



Best guess
By: walt sturgeon (Mycowalt)
2013-07-28 20:17:13 CDT (-0500)

The gills are forked, well spaced, and rather blunt edged.

Hi Walt,
By: Terri Clements/Donna Fulton (pinonbistro)
2013-07-28 19:56:57 CDT (-0500)

Thanks for the proposal. I’m having trouble seeing this as Cantharellus. The gills seem too blade like and the texture of the stem is quite different—more like a Russula stem.



Can anyone ID this to genus?
By: Terri Clements/Donna Fulton (pinonbistro)
2013-07-26 13:34:13 CDT (-0500)

It would be much appreciated. I proposed Clitocybe because of decurrent gills and fleshy stem but I can’t find anything that looks like this.

Created: 2013-07-26 07:35:04 CDT (-0500)
Last modified: 2015-12-10 18:59:18 CST (-0600)
Viewed: 200 times, last viewed: 2017-12-31 04:09:16 CST (-0600)
Show Log