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06-06-2015 15:51

Unknown ascomycete
Ibai Olariaga Ibarguren

Hello, I am struggling with a very characteristic

28-07-2015 20:40

Scutellinia setosissima?
Nedim Jukic Nedim Jukic

Hi, Not quite sure about determination of this on

28-07-2015 13:14

Diatrype 9807 ??
Leandro Sánchez Leandro Sánchez

Sur feuillus, stromata jusqu'à 5 mm de longeurKOH

28-07-2015 14:58

Fungus on Salix sp.
Jakob Schneller Jakob Schneller

The spores are about 15-18 micron. Asci 70-80 micr

28-07-2015 11:47

Hyaloscypha on herbaceous stem
Gernot Friebes

Hi,this was found on a herbaceous stem. The hairs

24-07-2015 17:11

Cordycipitaceae or Ophiocordycipitaceae (?) on Pardosa sp
Christopher Engelhardt Christopher Engelhardt

Hi.Found today in a swamp in N Germany on a dead P

27-07-2015 21:52

Lasiosphaeria or Hilberina
Per Vetlesen

Hallo This asco has grown in moist chamber on deb

27-07-2015 22:57

Strange tar spots on Betula
Steffen Lorenz

Hello,does anyone have an idea what species these

27-07-2015 20:41

Hypoxylon 9948
Leandro Sánchez Leandro Sánchez

Sur branche de feuillus (Salix au côté)Spores 9,

27-07-2015 21:32

Penzigioid Xylaria???
Dartanha Soares Dartanha Soares

Hi,Found this fungus on decorticated angiosperm wo

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Possible Peziza polaripapulata
John Leach, 28-05-2015 19:45

Hi all


I recently found this Ascomycete in Anston Stones Wood growing on the underside of a very wet 'rotting' Fraxinus log.
The Spores measured 17 x 8 microns. Ascus tips blue in Melzers,


Any help, comments much appreciated as always.


Best Wishes - John

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Andreas Gminder, 28-05-2015 22:57
Andreas Gminder
Re : Possible Peziza polaripapulata

Hello,


 


very probably yes.


The colour change (olivaceous to ochraceous) and the shape (somewhat umbilicate) are typical for the "apiculati"-group. But to be certain we need to see mature spores and how the ornamentation looks like then. Best coloured by cotton blue.


best regards,


Andreas

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John Leach, 28-05-2015 23:26
Re : Possible Peziza polaripapulata
Hello Andreas and a pleasure to hear from you!

Thank you for your reply and examples. I shall have a look at the material as you suggest and update.

Very Best Wishes -John
John Leach, 05-06-2015 17:08
Re : Possible Peziza polaripapulata

Hello


Sorry for the delay in reply but I needed to get more material. Even after a thorough search I only managed to find another 2 small Apothica 8 to 11mm dia.


I did as you suggested but still can't replicate the spore characteristic as in your images. Maybe I did not soak in CB for long enough. Should I leave longer perhaps?


Best Wishes - John

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Andreas Gminder, 06-06-2015 14:45
Andreas Gminder
Re : Possible Peziza polaripapulata

Hello John,


the two apothecia shown are very likely to be too young to have mature spores. The characteristic ornamentation is only to bee seen at really mature spores.


best regards,


Andreas

John Leach, 07-06-2015 17:36
Re : Possible Peziza polaripapulata

Hello Andreas.


Yes I think I only have very young material as you suggest. I'll keep an eye on the 'log' for any further development but will name the fungus cf Peziza polaripapulata for now.


Thanks again for all your help.


Best Wishes - John