Observation 96040: Pseudochaete tabacina (Sowerby) T. Wagner & M. Fisch.
When: 2012-05-27
Herbarium specimen reported
0 Sequences

Proposed Names

-57% (1)
Recognized by sight
57% (1)
Recognized by sight
63% (2)
Eye3 Eyes3
Recognized by sight: IF’s preferred synonym for H. badioferruginea and H. tabacina

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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There are
By: Danny Newman (myxomop)
2012-06-20 04:32:10 EEST (+0300)

other opinions. All this hopscotching is just the presence or absence of concensus among major minds in the field. I tend to see what both MycoBank and Index Fungorum have to say about a contended taxon. MycoBank does its users the courtesy of at least dividing obligate synonyms (described from the same type specimen) from facultative or taxonomic synonyms (described from different type specimens). The extent to which one or more is more or less valid than any other is a matter of opinion (those listed as “Illegitimate” are different. These are sunk on account of not being in complete compliance with the rules of nomenclatural code). To clarify, it is entirely possible to have two, valid, parallel synonyms for the same fungus. Who uses which is a matter of preference, preferably one backed up by some information to support that preference.

In this case, MycoBank has indeed synonymized all three taxa, but they aren’t too clear about it. H. badioferruginea is not on the list of synonyms for P. tabacina, but the former is among the listed synonyms of the latter. Who synonymized them and why probably lies somewhere on page 100 of the following publication:

Wagner, T.; Fischer, M.
Classification and phylogenetic relationships of Hymenochaete and allied genera of the Hymenochaetales, inferred from rDNA sequence data and nuclear behaviour of vegetative mycelium.
Mycological Progress Vol. 1.1, 2002.

which is when and where Pseudochaete tabacina was first described.

I know it’s hard, but don’t fret. Think of it as an exercise in neuroplasticity. Your brain will thank you later. :)

By: Andrew Khitsun (Andrew)
2012-06-20 02:15:27 EEST (+0300)

Sorry, I meant Pseudochaete tabacina. I examined the specimen (still have it), and it looks like developing P.tabacina to me, compared with all of the rest of H.tabacina in my records (dang – now I have to change all the names everywhere too – can’t those darn mycologists settle on one name and stay with it? :-)
I’d still like to figure out whether Hymenochaete badio-ferruginea is out there or has been folded into Pseudochaete tabacina? Is IF a final authority on this? Are there other opinions out there?

Index fulgorum
By: Andrew Khitsun (Andrew)
2012-06-20 02:08:51 EEST (+0300)

I looked this stuff up on Index Fulgorum as Myxomop suggested. It looks like they consider Pseudochaete tabacina a synonym to both Hymenochaete tabacina and Hymenochaete badio-ferruginea, again as Myxomop suggested. But would that mean that the latter two are one and the same? Or would it simply mean that authors were all over the place trying to name this species, putting it in different genera and even families (Thelephora, Auricularia and Helvella are also there). What I’m trying to figure is what names are still legit and recognised by most authors? Just because at some point Pseudochaete tabacina was called Hymenochaete badio-ferruginea doesn’t mean there is no currently named species Hymenochaete badio-ferruginea out there. Or does it?

You’re right.
By: Gerhard Koller (Gerhard)
2012-06-19 15:16:09 EEST (+0300)

But nevertheless I would not rule out this possibility. In the other obs the fruitbodies seem dried out or old. Here we have a rather initial stage.
But I am not supporting this ID though.

By: Danny Newman (myxomop)
2012-06-19 11:03:40 EEST (+0300)

and the only other ob on the site under the name P. viticola (observation 52020) look pretty strikingly different.

I found
By: Gerhard Koller (Gerhard)
2012-06-03 12:48:40 EEST (+0300)

H. badioferruginea in North Carolina on some hardwood too.

If H. badioferruginea
By: Gerhard Koller (Gerhard)
2012-06-03 12:47:59 EEST (+0300)

still is considered a “good” species then I would say it is a match.
The colors appear too bright for rubiginosa IMO and H. tabacina (at least ss. orig.) I do not know with raised margin. But I am not so familiar what else there is in Northern America.

A birch
By: Andrew Khitsun (Andrew)
2012-06-03 01:31:54 EEST (+0300)

Also, the fungus has raised outer edges, typical for *chaetes, but not evident from these photos.

What is the host?
By: Gerhard Koller (Gerhard)
2012-06-03 01:19:22 EEST (+0300)


By: Andrew Khitsun (Andrew)
2012-06-03 01:16:00 EEST (+0300)

Hymenochaete tabacina is very common here, as well as Hymenochaete rubiginosa and sometimes Hymenochaete badio-ferruginea . Phanerochaete viticola is not familiar to me at all – which doesn’t mean much since most guides only have “standard kit” of commonest species, and seldom expand into the multitude of species out there.

What about
By: Gerhard Koller (Gerhard)
2012-06-02 11:58:02 EEST (+0300)

Hymenochaete ?

Created: 2012-06-02 06:09:11 EEST (+0300)
Last modified: 2012-06-20 02:16:25 EEST (+0300)
Viewed: 179 times, last viewed: 2017-11-11 23:03:33 EET (+0200)
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