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Mot de passe perdu? S'inscrire

02-05-2011 19:36

François Valade François Valade

Christian L'heure des messages est incorrecte, el

01-05-2011 23:48

Pascal Ducos

Bonjour, apothécies jaune pâle de 4 à 6-8 mm,

26-04-2011 20:41

maurice pelissier maurice pelissier

bonjour j'ai trouvé sur un tronc d'arbre fraich

25-04-2011 22:16

Rodríguez Borja Rodríguez Borja

Hola Os pido una ayuda sobre esta especie recogid

25-04-2011 22:09

Michel RIMBAUD

Bonjour, Je suis complètement perdu devant un pe

25-04-2011 00:57

Yannick Mourgues Yannick Mourgues

Bonsoir à tous. Trouvé sur branche morte encore

23-04-2011 00:49

DirkW DirkW

salut a tous, does anybody know this imperfect

20-04-2011 09:54

Eric Strittmatter

Bonjour à tous, ce printemps les collègues de

19-04-2011 21:05

Björn Wergen Björn Wergen

Hi, just a short question: Is this Phaeosphaeri

19-04-2011 01:53

Yannick Mourgues Yannick Mourgues

Salut Alain. L'Hysteriaceae dont j'ai tant tardé

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Cistella on pteridium
Marja Pennanen, 18-09-2015 17:07
Hi,

these nearly 1mm wide cups grow on Pteridium aquilinum old stems.
The spores are 10-14x2-3 and have some big droplets and some smaller, too.
The asci are about 45-60x5-6.
Paraphyses are about 2-3 wide and may have septum and droplets. Their upper part can look nearly glaasy.
The hairs are about 15-30x 3-5, spiny at the upper part.

Cistella artica is close. Can they be this big?

Marja
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Hans-Otto Baral, 18-09-2015 17:53
Hans-Otto Baral
Re : Cistella on pteridium
VBs in paraphyses ar unusual in Cistella, but not impossible.

Asci are 8-spored?
Marja Pennanen, 18-09-2015 18:11
Re : Cistella on pteridium
Hi Zotto,

I tried to count them inside the asci, but am not sure. I thought that I saw at least 5 (meaning 8) in one of them, but can't be sure, maybe only 4. You know the poor condition of my equipment and my eyes are as old as I am ;)

There are some in the fridge. maybe I'll make an extra preparate.

Marja
Marja Pennanen, 18-09-2015 18:43
Re : Cistella on pteridium
Dear Zotto,

This is naturally 8 spored. I was confused with the Hyalopeziza where I had difficulties while counting the spores.
There may be at least 2-3 septas in paraphyses.
These grow guide sparse at the stems.

Marja
Hans-Otto Baral, 18-09-2015 20:42
Hans-Otto Baral
Re : Cistella on pteridium
Psilachnum pteridigenum seems to be similar but is said to have smooth hairs.

I was thinking of Phialina anomala, but again this has no warted hairs.
Marja Pennanen, 19-09-2015 11:55
Re : Cistella on pteridium
Hi,

I forgot to tell, that I found a couple of fruitbodies on Rubus idaeus stems , too.
They grow only 100 meters away from the place, where I found these.

Many species are shared with ferns and herbs for instance Lachnum virgineum and Cyathicula cyathoidea. I have found some Hymenoscyphuslike growing on Pteridium, too.

Marja