Observation 84963: Phanerochaete sanguinea (Fr.) Pouzar
When: 2011-12-06
(46.33411° 13.52978° )
No herbarium specimen

Notes: Any idea what this could be? Looks like some kind of ‘color complement’ of Chlorociboria aeruginascens? Fungus or something else? From two pictures showing also Plicaturopsis crispa it appears that this thing is somehow capable to infect this mushrooms too.

Code: Bot_580/2011_IMG7992

Habitat: Mixed forest, deciduous trees dominant, flat terrain, cretaceous clastic rock (flysh) bedrock, in shade, relatively moist place, partly protected from direct rain by tree canopies, average precipitations ~ 3.000 mm/year, average temperature 8-10 deg C, elevations 410 m (1.350 feet), alpine phytogeographical region.

Substratum: dead branch of Corylus avelana laying on ground still in bark. The same branch infected also with Plicaturopsis crispa, Tremella mesenterica and Tectella patellaris.

Place: Bovec basin, west of Bovec, near the trail from station A of the Kanin cable car to village Plužna, East Julian Alps, Posočje, Slovenia EC

Nikon D700 / Nikkor Micro 105mm/f2.8 and Canon G11, 6.1-30mm/f2.8-4.5

Species Lists


It appears that this thing lives under the bark of Corylus avelana and comes out through the Plicaturopsis crispa fruitbodies.

Proposed Names

28% (1)
Recognized by sight: Very intensive red rotten wood.
31% (2)
Eye3 Eyes3
Recognized by sight
Used references: (1) G.J.Krieglsteiner (Hrsg.), Die Grosspilze Bade-Württembergs, Band 1, Ulmer (2000), p 286 particularly picture on page 287.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
red coloring of wood dominant / Hypomyces rosellus hypothesis
By: amadej trnkoczy (amadej)
2012-01-03 10:02:34 PST (-0800)

Thank you Gerhard for confirmation of Hypoxylon fuscum. This was my first guess. I haven’t yet found time to look at it closer (the branch is waiting in my garden).

Regarding red coloring my feeling is that coloring of wood is primary and coloring of Plicaturopsis is secondary. The twig found in the first observation was red all through not much less than one meter in length and only a few of P.crispa fruitbodies (there were many) showed red coloring. So, quantitatively the ‘red’ in wood absolutely prevailed. In the second observation there was less red colored wood, but still much of it and none of the P.crispa fruitbodies (although not many were present) showed red staining. So, the possibility that something on P.crispa colored the wood too seems to me less probable. But, maybe there are two different causes of red color.

In this case Hypomyces rosellus can explain red on P.crispa. I made a mistake when I found the first twig. I was so excited to find Tectella that I didn’t paid much attention to other interesting things on the same branch. I didn’t check these red P.crispa stains with my magnifier. Unfortunately, in the second observation there is no red stained P. crispa and all my pictures from the first observation don’t have enough resolution to show sufficient details of these stains. May be I will go to the first place once again hoping to find some more. It shouldn’t be too difficult to prove or reject Hypomices hypothesis.

Thank you Irene and Gerhard for this interesting discussion.

I also thought of that and related species,
By: Gerhard Koller (Gerhard)
2012-01-03 07:58:21 PST (-0800)

but neither do I know about the wood staining. As far as me is concerned I haven’t noticed any staining of the wood by it.

My guess
By: Irene Andersson (irenea)
2012-01-03 07:53:13 PST (-0800)

on the Plicaturopsis is Hypomyces rosellus, but I don’t know if it can give a red tint in the wood..

First of all,
By: Gerhard Koller (Gerhard)
2012-01-03 07:40:30 PST (-0800)

on hazel nut you have Hypoxylon fuscum.
If it is really that reddish than there is another possibility, no, possibilities. What is striking as you said is that Plicaturopsis is also reddened. I never found Tectella patellaris, but crispa is not rare, especially on beech wood. But if this mushrooms on the twigs are affected I would rather think of either a fungus imperfectus like Paecilomyces sp. or maybe there is also this Cistella that colors the hymenia of poroid fungi red. But more probably I could think of some alga that produces this red dye. Otherwise I have no more idea for now. Massariosphaeria rubicunda is purple as you found out and rather on thicker substrata. Wait, one more guess: Melanomma sanguinarium. But I also know this just from thicker twigs or stems and it is not that strikingly red as far as I know. But there are many red staining fungi and algae out there.
Phanerochaete sanguinea can be found the whole year out but very seldom fruitbodies are developed. It prefers coniferous wood, I often find it on pines but also can be found on hardwood like oak. The wood is usually very well rotten when infected with it.

no definite answer
By: amadej trnkoczy (amadej)
2012-01-03 07:27:52 PST (-0800)

Hi, Gerhard. Thank you very much for your information. Let me tell first that yesterday I found another ‘red wood’ Corylus avellana branch a few km away of the first observation. Again there were several fruitbodies of Tectella patellaris and Plicaturopsis crispa on it as in the first case. In addition there were also Hypoxylon sp. (probably fuscum) and Graphis scripta on the same branch.
This time I paid more attention to the color of the wood. In both observations the red color was surprisingly saturated. I can say, much more than usually with Chlorociboria aeruginascens. There was very little or no yellow component in the color. It was more carmine red with some slight violet tint in the second case (observed and photographed in wet state and in cool gray light of rainy weather). I compared the wood to my color card (http://www.onlineauctioncolorchart.com/picturesoftheoac.html ) and found that colors between oac630 and oac608 are the closest (check page 9. of the card). I checked to me available sources and concluded that, with respect to wood color, Sillia ferruginea and Cryptospora corylina do not fit. All pictures I’ve found showed strong yellow component in the wood color. I am less convinced that the same applies to Massariosphaeria rubicunda. I found very little information about it, but all related pictures show more purple/violet coloring of the substratum. Nevertheless, I am afraid no definite answer can be given. Phanerochaete sanguinea just seems the most probable possibility based on color of the wood. Unfortunately, I did not find any signs of fruiting. Probably it is not the right time?

What intrigues me is this association of Corylus, Tectella patellaris and Phanerochaete sanguinea(?) found in both observations. Both of this fungi seem to be quite rare and neither of them has an entry in the List of species and distribution of fungi in Slovenia (http://www.zdravgozd.si/boletus/arealnekarte/eng/bi.htm ).

There is another puzzle for me with this observation. If you look at the last picture you will noticed that this red color appears also in the central part of Plicaturopsis crispa fruit bodies. I do not understand how this red color is actually produced by the fungus. But it seems to me strange that other fungus can be colored in the same way as wood? Do you have any explanation?

Thanks again for your input.

On Corylus
By: Gerhard Koller (Gerhard)
2012-01-01 13:51:29 PST (-0800)

there are two pyrenomycetes that color the wood bright yellow to orange reddish: Sillia ferruginea and Cryptospora corylina. Fruitbodies are as is the case with all those mushrooms tiny to larger black things with ostioles. But since this looks red it could be Phanerochaete sanguinea. How vivid red is it? Another possibility could be Massariosphaeria rubicunda. Check all of them out but I am afraid if you do not have a fruiting body it will be useless and you’ll have to wait for next fruiting season to go for it once more.

Created: 2011-12-20 10:02:57 PST (-0800)
Last modified: 2012-09-07 22:31:54 PDT (-0700)
Viewed: 160 times, last viewed: 2017-02-05 01:58:27 PST (-0800)
Show Log