Help with Resupinate if poss

[Ditiola]

I normally avoid resupinate fungi, but I could not avoid taking this picture as I liked the way it was growing through the moss.

I know they are difficult but has anyone any ideas. It was also growing on the actual trunk of the Elder just visible to the left. The hymeneal surface is lumpy white or pale brown when mature.

There appear to by some simple cystidia, and the spores are pip shaped smooth 10-11.6 x 5.8 - 7.3 microns. (Probably white)

Peter

[fairplay]

You also have plenty of clamped hyphae Peter, unfortunately I have seen this before but have been unable to give it a name.

It seems to be a sort of Stereum, but not one I know.

Neil.

[mollisia]

Hello,

looks like Sebacina incrustans, but I have not checked the micro details, so not sure if that is possible at all.

best regards,
Andreas

[SheffieldLass]

Interesting how the shape of the fungus layers mirror the shape of the moss. I'm assuming that the fruiting body is younger than the moss, if not, then the moss would be mirroring the fungus.

Melanie

[Ditiola]

Melanie
I am not sure which is growing on which, I think they must be physically supporting each other although I would think that the fungus is much faster growing than the moss so it probably started to develop first. I am assuming that it normally grows as a corticolous resuspinate, as a small patch is growing this way on the bark of the tree, when this develops a bit more I may go back and take a sample from the bark, and will probably stand a better chance of a successful ID. Although I do not have much literature on this group so may still struggle, but I hate having a photo with no name!

Peter

[Ditiola]

Hi
I think I have solved the puzzle. I now believe it is Cylindrobasidium laeve (formally C.evolvens),

Apparently the pip shaped spores are quite distinctive.

I have attached below a close up section from my previous photograph showing it is growing on the trunk of the tree, a more normal habitat. And another photo from the internet for comparison.

Peter

[mollisia]

Hello,

I'm still not convinced. Cylindrobasidium laeve is a fungus of the initial state of wood decomposition. It regularily occurs on the cutting sides of felled trees, or on the bark of frshly fallen trees. I have never seen it growing on the optimum or final phase and I have never seen it growing over mosses.
The spores are typical in shape, but they should be filled with numerous drops in Cylindrobasidium. I can not see this in the micropicture above, but that may be due to the quality of it.
I won't exclude Cylindrobasidium of course, but I'm not convinced that it is this species.

best regards,
Andreas

[Ditiola]

Andreas

Thanks

I will keep investigating further

Peter

[Ditiola]

Andreas

I have returned to the site and collected a new sample, from the same tree and moss. The Elder tree involved is completely dead. This is the new sample:



Here are two more photos from the web site nahuby.sk (This appears to be a good web site)





From these it appears that the colour and texture although perhaps not typical do both occur within this species.

The spores are spot on for size and shape and have internal granulation (or oil drops)






The Hypae have lots of clamp connection and internal granulation (or oil drops)





I am convinced I have Cylindrobasidium lavae (syn.C.evolvens)

I have tried to find information on corticioid fungi with mosses but have only found the article below and I have been unable to access the 2001 Yurchenko paper

Peter



Natural substrata for corticioid fungi
EUGENE O. YURCHENKO
Laboratory of Mycology, V.F. Kuprevich Institute of Experimental Botany
Akademichnaya 27, BY-220072, Minsk
fungi@biobel.bas-net.by
Yurchenko E.O.: Natural substrata for corticioid fungi. Acta Mycol. 42 (1): 113-124, 2006.


EXTRACT 1

BRYOPHYTA
The substratum associations of fungi with true mosses and hepatics are rather
rich, but not enough documented by corticiologists. The fungi found on living
mosses can be classified into the two groups: embracing moss sprouts close to dead
wood or bark, where the basidioma grows (Fig. 7, 8) and occupying sprouts without
clear connection of basidiomata with wood (Fig. 9). Evidently for a number of fungi
moss sprouts serve for enlarging spore-producing surface and uplifting them above
the ground. But in process of fungus-moss interaction a part of living moss organs
become deformed, agglutinated and chlorophyll-less, indicating the evident negative
fungus effect


EXTRACT 2

Bryophyta come into interaction with fungi from the earliest ontogenetic stages,
e.g. we observed the association of living embryo states of unknown moss with
Tomentella sublilacina (Ellis & Holw.) Wakef. hyphae on Picea abies bark (MSK
6570).
In a previous paper (Yurchenko 2001) we described the associations of 35 corticioid
fungi with 11 moss species. The most common union with Bryophyta forms
Amphinema byssoides, which hyphal strands, basidiomata patches and individual
hyphae occur on living and dead lower parts of ground mosses Hylocomium, Pleurozium,
and Ptilium. The same habitat is frequently occupied by Athelia epiphylla
complex. Frequent moss sprouts colonization is observed for fungi with actively
growing hyphal strands and rhizomorphs, e.g. Phanerochaete spp. and Steccherinum
fimbriatum. The biggest number of fungal species was collected in association with
the genus Brachythecium. Lophocolea heterophylla (Schrad.) Dum. is a wood-inhabiting
hepatic which living thalli most frequently overgrown by corticioid fungi, e.g.
Tomentella fuscocinerea, Tubulicrinis subulatus (Bourdot & Galzin) Donk (Fig. 7),
and Tylospora fibrillosa.



Yurchenko E.O. Corticioid fungi on mosses in Belarus. (2001) Mycena (1) 1: 71-91.