Observation 131790: Tyromyces P. Karst.
When: 2013-04-11
No herbarium specimen
0 Sequences

Medium sized all white Polypore. Several in the close surrounds and all suffering from continuous rain. All had softening top areas and some had fallen off the tree trunks. Loaded as these fungi are different to the usual white common type. About 6inches across front face.
Added note.
>>>>>>>>I forgot to mention that when I picked up one of these (Polypores),that was on the forest floor, it was extremely heavy, (I presumed water saturated) and this may have been the reason for it being dislodged from where it was growing.. When I checked the condition of two others close by, (still attached to wood), they all had the same significant deterioration to the top side of the fungi. As the specimens were not in good condition as far as I was concerned, I loaded them as a matter of interest due to their difference in makeup. They definatly are not commonly seen by me.kk


Two added new images plus re-loaded original for reviewing.
Two added new images plus re-loaded original for reviewing.
Two added new images plus re-loaded original for reviewing.

Proposed Names

29% (1)
Recognized by sight
46% (2)
Recognized by sight
46% (2)
Recognized by sight
63% (3)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I think
By: Gerhard Koller (Gerhard)
2013-04-19 03:42:30 PDT (-0700)

the two last pics show a specimen infested with bugs and it looks like the fruitbody is wasted?
You can send the sample but I can in no way promise to come to a proper ID. I will try though.

Added images Returned to site 1 week later

I returned to the site where I located the all white polypores. I fiound the original specimen that I had loaded to the site. I also photographed another specimen in better condition and hopefully the same species. I have kept a sample to send to Gerhard if he would like it. I re-photographed the original specimen together with front and back of another. This added image of the last specimen was tottally water logged. It does not however show the deterioration to the top section of the fungi? The specimen was on the ground and not attached to the trunk. I still believe it fell from its habitat due to the weight of absorbed water. It was (Like a full sponge) It was not woody but leathery to cut. Hope the added images assist in confirming an ID.

Yes, a small slice is enough but it has to be of the whole fruitbody.
By: Gerhard Koller (Gerhard)
2013-04-15 13:19:19 PDT (-0700)

Just cut across it like you would cut out a slice of pizza.
The green on the cap surface is most probably from algae.
I do not claim it is Spongipellis. I just can’t come up with a better solution as of yet.


Gerhard, I wont be able to get into the area for about two weeks, but from experience these polypores do survive for longer periods than ordinary fungi. If the rain doesn’t return, I will make a point of checking the area out again. As I noted, I haven’t seen this species before in any of the locations I visit. I did think that maybe the continuous wet weather had promted the growths. I would believe it is a destructive fungi. Is there any particular section that I should save as they are fairly big, and I would presume that I would only need a small sectiion for ID. If all this happens would you be interested in me posting the specimen to you. (my contribution.)
chow, kk

By: Gerhard Koller (Gerhard)
2013-04-14 15:26:33 PDT (-0700)

I thought about something like Spongipellis spumeus which I know from Europe. I haven’t found something like your polypore during my stay in Oz so I was not sure if there is Spongipellis. Could be a good guess but we would need micro details now.

Comment to Gerhard

Had a look on the Australian sites for “Spongipellis”. Was unsucessful in obtaining reference to it being found in Oz? See notes from Australian "species fungorum site: Synonymy See Note
Current Name:
Spongipellis malicola (Lloyd) Ginns, Mycotaxon 21: 332 (1984)

Polyporus spumeus var. malicola Lloyd, Mycol. Writ. 4 (Syn. Apus): 305 (1915)
Tyromyces spumeus var. malicola (Lloyd) J. Lowe, Mycotaxon 2(1): 23 (1975)

Synonymy Contributor(s):
CBS (2004); CBS Aphyllophorales Database

The Funngi I found seems to fit with the images viewed, esp: the uneveven varying topside of the fungi. Your query on heavy, to explain a synonym: The difference in feel between a Sponge and a Sponge Full of water. The weight difference was very noticable compared to other Polypores. Hope this info is a help. kk

By: Gerhard Koller (Gerhard)
2013-04-14 14:50:20 PDT (-0700)

Do you have Spongipellis over there?

Added comment to original notes.

Hi fellows, If you can suggest a naming that you are both happy with I will uodate the records. Many thanks as usual. kk

There is at least a better delimitation between Oligoporus and Tyromyces.
By: Gerhard Koller (Gerhard)
2013-04-14 09:03:56 PDT (-0700)

Oligoporus (which the French authors now call Postia again but e.g. not all of us in Austria or Germany) causes a brown rot whereas Tyromyces makes a white rot.
But as Danny said there is a continual shift in species. I for myself call the most Oligoporus except Tyromyces chioneus which is IMO a good Tyromyces (applied to Europe). Some Tyromyces are also in Loweoporus and there are other names in the game: Spongiporus for example.

there are members
By: Danny Newman (myxomop)
2013-04-13 21:46:38 PDT (-0700)

of each genus which are synonymous with members of the other (see: fragilis, guttulatus, stipticus, caesius, tephroleucus, floriformis and others). Since making a sp. determination on Ian’s find sans microscopy is unlikely, the genus names can be used pretty much interchangeably. even with a species level ID, this interchangeability would still hold some degree of true. i don’t know enough about the qualifying characters of each genus to say which is more or less appropriate for which species, but neither do the polyporologists by the looks of things.

By: Richard Kneal (bloodworm)
2013-04-13 21:39:52 PDT (-0700)

not from my experience…
is this valid…
meaning, have they been published as the same??

By: Danny Newman (myxomop)
2013-04-13 21:37:32 PDT (-0700)

Oligoporus, Postia

same difference

Created: 2013-04-13 04:10:45 PDT (-0700)
Last modified: 2013-04-20 02:30:50 PDT (-0700)
Viewed: 95 times, last viewed: 2017-11-18 01:23:05 PST (-0800)
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