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26-02-2015 18:59

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Good evening,this bizarre fungus grew on many plac

26-02-2015 23:58

John Leach

Hello all On a visit to Anston Stones (South York

25-02-2015 20:52

Enrique Rubio Enrique Rubio

Bonsoir mes amis Je me demande si cette Eutypella

25-02-2015 23:47

Miguel Ãngel Ribes Miguel Ángel Ribes

HiThis small, 1-1,2 mm, with yellow hymenium and w

26-02-2015 16:49

Blasco Rafael Blasco Rafael

Hola, Tiene alguien párr su envio disponible, cla

25-02-2015 16:16

Blasco Rafael Blasco Rafael

Hola, tengo estos pequeños peritecios sobre estie

25-02-2015 18:28

Chris Johnson

GreetingsCan anyone provide me with the following

26-02-2015 07:33

Blasco Rafael Blasco Rafael

Hola, tengo esta pequeña muestra que creo sea una

25-02-2015 16:04

Luc Bailly Luc Bailly

Bonjour à tous,Lierneux, Réserve naturelle doman

22-02-2015 10:29

Castillo Joseba Castillo Joseba

este hongo negro aparece en el mango de una brocha

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Inmersed on Carex
Enrique Rubio, 24-04-2014 19:52
Enrique Rubio

Hello forum


I found these minute inmersed fr.bodys on leaves of Carex sp. on a very wet place. The pale lips of the fuitbodys are never fragmented and the hymenium is very pale too. The fusiform asci seem to have a little apical apparatus IKi dirty red, and the ascospores a 3-septate only visible in IKI


I think this fungus could belong to the Naeviaoideae, but I'm not sure


What's your opinion


Thanks again

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Hans-Otto Baral, 24-04-2014 21:49
Hans-Otto Baral
Re : Inmersed on Carex
Hi Enrique

is the inner margin composed of periphysoids? (horizontal hyphae forming a palisade)?

I have no idea. With my database I have only
Phragmonaevia hysterioides Ellis & Ellis p. 529
but that has very elongate apothecia.

Zotto

Enrique Rubio, 25-04-2014 14:31
Enrique Rubio
Re : Inmersed on Carex

Hi Zotto


Unfortunately I don't know how the margin is because I cannot cut it by the very snall size of the apothecia. By the way, today I heve seen the flower of this plant and I know it is not Carex but Iris pseudacorus!

Peter Wilberforce, 25-04-2014 15:45
Re : Inmersed on Carex
Dear Enrique,
This looks very like Karstenia inconspicua, a taxon I described on Deschampsia caespitosa leaves from north Argyll in Scotland.
The species was published in Mycologist Vol.13 Paret 4 in 1999.
The structure was very basic: just a few layers on textura angularis. Spores 3-septate at maturity, 10-12 x 2-3. The fungus was very difficult to see as it as concolorous with the dead leaves.
Hope this helps,
Peter Wilberforce
Hans-Otto Baral, 25-04-2014 16:25
Hans-Otto Baral
Re : Inmersed on Carex
Hi Peter & Enrique

The description of K. inonspicua is indeed similar,  except for the much smaller spore size. The total absence of periphysoids in that species make me wonder where it belongs. Karstenia is impossible because there the paraphysoids are very developed. Cryptodiscus could be another choice, but also there periphysoids are present though only above the hymenium. In both genera the entire hymenium always reacts heimamyloid (strikingly blue in iodine after KOH-treatment). Enrique's specimen seems inamyloid except for the apex.

So I think the fungus is helotialean rather than ostropalean.

Zotto
Enrique Rubio, 25-04-2014 17:03
Enrique Rubio
Re : Inmersed on Carex
Thank you Zotto and Peter
Martin Bemmann, 25-04-2014 22:46
Martin Bemmann
Re : Inmersed on Carex
Hi Enrique,

did you consider Laetinaevia longispora? It obviously occours on a variety of alpine herbacious stems. I personally have no idea of the macroscopy of this species.
Here is the description by Hein 1976.

Best regards
Martin
Peter Wilberforce, 26-04-2014 15:51
Re : Inmersed on Carex
Hi Enrique, If you would like sections made of this material and you have some spare, then I would be happy to do them for you. I have a base-sledge microtome and freezing stage, so it would be no problem. Just let me have some lightly dried material and I'll do it for you.
Postal address is  8 Feryfield Road, Connel, Oban, Argyll, Scotland PA37 1SR
Regards,
Peter
Hans-Otto Baral, 26-04-2014 16:16
Hans-Otto Baral
Re : Inmersed on Carex
Laetinaevia I know only for species without a raised margin, very different from this. Diplonaevia would more fit by macroscopy.

Zotto
Martin Bemmann, 26-04-2014 17:29
Martin Bemmann
Re : Inmersed on Carex
Hi Zotto,

as I said: I have no idea of the appearance of. L. longispora. It was just a proposal...
Are there Diplonaevias with septate spores?

Regards
Martin
Hans-Otto Baral, 26-04-2014 19:16
Hans-Otto Baral
Re : Inmersed on Carex
Hi Martin

Diplonaevia species are mainly non-septate or sometimes 1-septate (Hein 1983), see alo in Cubby. But Enrique's fungus might anyhow belong in that genus.

Zotto
Enrique Rubio, 29-04-2014 18:16
Enrique Rubio
Re : Inmersed on Carex

Many thanks to all.


Hi Peter I'll send you my material for to try the section


 


Thanks!