Observation 162072: Gloeocantharellus Singer
When: 2014-03-25

Notes: Returned to State Forest after rain in past 12hours.Fungi possibly Russula..??
Found two in close proximity growing in soil and forest leaf litter. Caps to 7cm and stipes to about 3cm. Caps concave and uneven perimeters. Area was close to forest thick but fungi were more in the open and pushing through litter.
No special aromas or habits noticed. This area seems to be prevalent for various species of Russula at the moment.

Images

411149
411150
411683
Micrograph taken of midsection of gill formation at 40x using melzers reagent.
411684
Micrograph taken of midsection of gill formation at 40x using melzers reagent.
411685
Micrograph taken of midsection of gill formation at 100x using melzers reagent.

Proposed Names

28% (1)
Recognized by sight
-22% (4)
Recognized by sight
15% (5)
Recognized by sight: I second Debbie’s comments below, but this thing looks very odd… perhaps one of the primitive russuloid outgroups, I think Gloeocantharellus is possible. A slide of the spores could immediately refute Russulales
-9% (3)
Recognized by sight
61% (6)
Eye3 Eyes3
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Stalk-composition.

Deb, Fortunately, I had checked and compared the stalk with a known and identified Russula. You are spot on with your assumption about the stalk of this fungi in question. The stalk did not break cleanly, as you had said, and was very fibrous in its makeup, and actually difficult to section in the hand..
I did manage to get Melzers reagent and thought I mentioned that in the micrographs. I find it gives me cleaner and better results under the scope, at 40x at least. I have been using it for most of my micrographs. I am still not happy with my 100x magnification results yet, but I think they are improving slightly. Have a long way to go before I can say I have mastered it. Did you look at the Austroboletus I loaded. I think it is A.rarus, but was waiting on a comment from my old friend Roy H. I didn’t email him, maybe I should have. It was much bigger than my original find some time ago. I have kept it, and it is drying ok so far. (Love the dryer. Should have had it moons ago.)
chow, kk

start with just a gill smash mount…
By: Debbie Viess (amanitarita)
2014-03-26 14:56:11 PDT (-0700)

pull off a piece of gill, drop into a small amount of water on a slide, place a cover-slip and then gently smash it down with a pencil eraser or something (not your finger) that won’t break the glass.

IF it is in the Russulales, it will have elliptical to round, ornamented spores.

do you have Meltzers solution yet? without an iodine based mount, you won’t see the amyloid rxn, also typical for that group.

might not be easy to tell with just spore data though; apparently even Gloecantharellus has warted spores, with warts that blue and spores which are sub ovoid.

Here’s a pull-quote from a recent Gomphus paper by Admir Giacini et al, “Systematics of the Gomphales: the genus Gomphus sensu stricto”, pg. 397:

“Gomphus and Gloeocantharellus occupy an important position in the evolution of the fungi in the Gomphales. Molecular analyses (Giachini et al. 2001, Giachini et al. 2010, Humpert et al. 2001), indicate Gloeocantharellus and Gomphus as ancestral to all other genera within the Gomphales. The two genera share spore shape and ornamentation and (for some Gloeocantharellus species) clamp connections.”

Do your check list on the fresh fruit body first, if it still exists. I am betting that stalk won’t snap.

Specimen check

Deb, I will do all the tests you suggest, and make notes for a reply comment. You must be up Late? 0745 AM here, Thursday. Ta again Chow, kk

Russula

Deb, only suggested Russula because of the growth habit when found, the short thick stipe and the gill formation. I saved a specimen and will scope. kk

not surprising…
By: Debbie Viess (amanitarita)
2014-03-26 11:37:40 PDT (-0700)

since it is almost never collected here in NA, either!

I don’t think this is one of the Russulales.

But Ian, you have saved it, yes? Please dry it, too!

It is a very curious critter.

What made you think Russula, anyway?

according to…
By: Richard and Danielle Kneal (bloodworm)
2014-03-26 11:32:39 PDT (-0700)

https://www.researchgate.net/...

Gloeocantharellus, is not listed in Australia…

Gloeocantharellus purpurascens range
By: walt sturgeon (Mycowalt)
2014-03-26 09:56:42 PDT (-0700)

From the Smokies to Australia seems a bit extreme and unlikely to me. MO has observations from Virginia, Tennessee and N.Carolina.

interesting ID proposal!
By: Debbie Viess (amanitarita)
2014-03-26 08:43:21 PDT (-0700)

and I can see where you are coming from here … canthelleroid gills and purpling at the cap margin …

the only problem that I can see is the lack of an unrolled margin, but perhaps that gets lost in late maturity?

Ian: all members of the Russulales (Lactarius and Russula) are brittle and have true gills. Does this stalk snap cleanly, like chalk? Do the gills bleed latex? Do the gills break off if you rub them? If the answer is no, this is not a member of the Russulalaes.

I am amazed that this species occurs in OZ!

Great work, as usual, Ian.

Created: 2014-03-25 15:48:05 PDT (-0700)
Last modified: 2014-05-19 05:09:52 PDT (-0700)
Viewed: 155 times, last viewed: 2016-10-26 09:37:59 PDT (-0700)
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