Accès membres

Mot de passe perdu? S'inscrire

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

25-03-2024 14:08

Ursula Kozik

Bonjour et bonne journée, On m'a envoyé une tro

25-03-2024 03:56

B Shelbourne B Shelbourne

• Scuttelinia: Macro and habitat.• S. scutella

« < 1 2 3 4 5 > »
Pleospora? on mosses
Marja Pennanen, 25-11-2012 17:50
Hello forum,

these black spots are about 0,2 mm wide and seems to have some hair-like structures.
The spores are about 26-34x9-10.
Asci had allready been broken and when I tried another, they were immature, about 70x15.

I suppose, this is a Pleospora, but failed to find any fitting species.
Any good ideas?

Marja
  • message #20536
  • message #20536
Hans-Otto Baral, 25-11-2012 18:10
Hans-Otto Baral
Re : Pleospora? on mosses
Try Epibryon, that genus is similar to Capronia, and your fungus reminds me of Capronia.

Zotto
Marja Pennanen, 25-11-2012 19:58
Re : Pleospora? on mosses
Thanks Zotto!

I would try.  Just have absolutely no descriptions of Epibryon.
Dannish pyrenomycetes don't seem to know that genus and internet is very quiet about that, too...

Still happy, this seems to represent a genus which is new for me :)

Best wishes from Marja
Alain GARDIENNET, 25-11-2012 20:23
Alain GARDIENNET
Re : Pleospora? on mosses
Hi Marja,
Perhaps you will find interesting things with this link :
http://archive.org/details/mitteilungenderb14sues
Best wishes,
Alain
Hans-Otto Baral, 25-11-2012 20:41
Hans-Otto Baral
Re : Pleospora? on mosses
I remember the genus is treated in Döbbeler 1978
Mitt. Bot. Staatssammlung München 14: 1-360

I have only a few copied pages and not digital. Perhaps someone has it?

I suggest to send your images to Peter Döbbeler. His Email I will send to your private address.

Zotto

Marja Pennanen, 29-11-2012 14:34
Re : Pleospora? on mosses
Hi Zotto, Alain,

I contacted P. Döbbeler and he answered:
"there are several bryophilous species with dark brown
muriform spores described in the genera Pleospora, Pleosphaeria,
Teichospora. But the species circumsciption is unclear."

Alain, thank you for the interesting link. There is lot of reading to do, if I come to the conclusion, that I have time to try to read that ;)

Marja
Hans-Otto Baral, 29-11-2012 14:58
Hans-Otto Baral
Re : Pleospora? on mosses
But Peter Döbbeler did not utter an opinion of the possible genus of your fungus? The phrase "described in the genera" does not necessarily mean that these taxa today still belong there.

What you can do is to test with IKI, and/or with KOH+IKI (remove KOH with water before adding IKI). Epibryon has a hemiamyloid reaction of the hymenial gelatine (nicely blue in KOH+IKI), unlike Pleospora etc.

Zotto
Georges Greiff, 28-09-2021 21:13
Re : Pleospora? on mosses
I am currently calling collections of these kinds of fungi from liverworts Pleostigma (Teichospora) jungermannicola as per Marsh et al. (2010). It seems like species described as Pleospora haploziae Racov., P. lophoziae Racov., P. hepaticola Watson are all very similar. My collections lack hairs on the fruitbodies but have often grown beside Bryosphaeria spp. which have hairs. What the natural classification is, I don't know. Stenroos et al. (2010) included one Pleostigma jungermannicola in their analysis.
Marja Pennanen, 29-09-2021 08:49
Re : Pleospora? on mosses
OMG,

thank you again.

This collection I do not remember. Must dig it  out from my herbarium.

Marja