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27-10-2013 09:34

Pinkish Brown Coprotus on Cow Dung

Peter Thompson

Hello Everyone,I recently found a Coprotus species

28-10-2013 09:26

Yannick Mourgues

Yannick Mourgues

Bonjour à tous.Qui saurait où je peux trouver le

17-10-2013 14:09

Gilbert MOYNE

Bonjour,Un petit asco qui me pose problème :Habit

24-10-2013 22:45

Ralph Vandiest

Ralph Vandiest

Hello,I found these peziza at the edges of a more

22-10-2013 21:51

Otidea subgrandis ?

Jean-Luc Ranger

Bonjour à tous, Voici une Otidea qui semble corre

23-10-2013 18:19

Literature Ceska Mykologie

FRANCIS FOUCHIER

Dear all, does anyone have a digital copy of the

20-10-2013 12:53

Rubén Negrín

Hola a todos. Sigo el foro pero es la primera vez

22-10-2013 17:08

Literature on Sarcoleotia

Enrique Rubio

Enrique Rubio

Can you help me with this article? Schumacher, T.;

17-10-2013 21:54

Coccomyces atactus??? BIS

FRANCIS FOUCHIER

1) Est-ce bien un Coccomyces?D'après la clé de S

20-10-2013 23:43

Otidea leporina ??

Alain BRISSARD

Rebonsoir à tousLa encore je sollicite votre cont

Coelomycete on the Ulmus branches

Alex Akulov, 03-12-2011 17:39

Alex Akulov

Dear Friends
Did you know the species of coelomycete, photos of which are presented below?
Personally, I have no idea what it is. Spores are very abundant and formed on the thin dead twigs of Ulmus still attached to the tree.

Grateful before,
Alex

Martin Bemmann, 03-12-2011 22:05

Martin Bemmann

Re : Coelomycete on the Ulmus branches

Hi Alex and René,,

a close relative seems to be the Genus Coryneum. C. compactum is reported by Sutton (1980: 352) from Ulmus bark, though the conidia there are shorter as well.

Best regards,

Martin

Alex Akulov, 03-12-2011 23:20

Alex Akulov

Re : Coelomycete on the Ulmus branches

Dear Friends

Thank you for advise very much!

I was thinking about species, about which you wrote me.
I think it's something else. What do you think about Exosporium ulmi Erikss., Mykol. Zentbl. 1: 35 (1912)?

Please look at the description of this species in the attached file. Size of spores corresponds quate good, the septation character - in some extent. Unfortunately, I do not have the opportunity to find the original article, where this species has been described. It is possible, more in detail description and iconotype is present there.

Alex

P.S.
Below I send also the description of Coryneum compactum and Seimatosporium macrospermum which I have.

Alex Akulov, 03-12-2011 23:22

Alex Akulov

Re : Coelomycete on the Ulmus branches

Coryneum compactum and related species descriptions from Sutton, 1975

Alex Akulov, 03-12-2011 23:23

Alex Akulov

Re : Coelomycete on the Ulmus branches

Seimatosporium macrospermum description from Sutton, 1980

Alex Akulov, 03-12-2011 23:38

Alex Akulov

Re : Coelomycete on the Ulmus branches

Yes!
I'm pretty sure I know this species!
What do you think about Stigmina pulvinata (Kunze) MB Ellis (= Coryneum pulvinatum Kunze)? Below I attach a description and illustration of this species from Ellis, 1976. In my opinion it fits wonderfully :-)

Alex

Martin Bemmann, 03-12-2011 23:44

Martin Bemmann

Re : Coelomycete on the Ulmus branches

Yes Alex, this looks promising! The tendency of the conidia to septate muriformously is clearly to be seen in your micros. The amplitude of their length fits as well.

Regards

Martin

Alex Akulov, 04-12-2011 00:17

Alex Akulov

Re : Coelomycete on the Ulmus branches

Thank you, Martin
If I understood correctly, in 1975 Sutton noted that Stigmina pulvinata is doubtful species. A single studied sample of this species (France, vicinities of Paris, 1840) collected from Ulmus really was Stigmina compacta (= Coryneum compactum). My sample is true Stigmina pulvinata sensu Ellis (which is now considered to be the species-artifact)!

I'm at a loss, what I need to do with this find, to bring the work to the end. Coryneum is not "my" group of fungi and I had no intention of working with her deeply. And at the same time, losing this data would be unforgivable.

Alex