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19-07-2011 09:12

Alex Akulov Alex Akulov

Dear FriendsCan you tell me whether there are any

18-07-2011 18:04

Beñat Jeannerot Beñat Jeannerot

Adio à tous,Si vous aimez les lichens et ascomycÃ

18-07-2011 19:43

Nedim Jukic Nedim Jukic

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18-07-2011 17:38

Alex Akulov Alex Akulov

Dear Friends Are you familiar with this species,

18-07-2011 18:46

Alex Akulov Alex Akulov

Dear FriendsIn some samples of resin were eating a

17-07-2011 20:37

Jean Pierre Dechaume Jean Pierre Dechaume

Les Amis,Merci de me donner votre avis, s'il vous

18-07-2011 17:15

Alex Akulov Alex Akulov

Below are listed some photos and description of sp

18-07-2011 12:06

Enrique Rubio Enrique Rubio

Hi to all:I'd like to know your opinion about this

13-07-2011 14:52

Yatsiuk Iryna Yatsiuk Iryna

Hello everybody! I collected this Gyromitra in pi

08-07-2011 20:27

Michel Delpont Michel Delpont

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Chlorociboria on Fagus
Alex Akulov, 19-07-2011 09:12
Alex AkulovDear Friends
Can you tell me whether there are any environmental preferences of species Chlorociboria aeruginella, Ch. aeruginascens and Ch. aeruginosa? I would like to clarify for myself what same species from mentioned above are able to colonize wood of Fagus and cause its greening. I often find a timber devoid of fruiting bodies. Is it possible in this case to talk about any particular species name?

What other criteria besides the size of ascospores are important for these species delimitation?


At one of my samples I found ascospores the following sizes:
(12.3) 13,1-14,5 (15.3) x (2,0) 2,7-3,4. Could this be Chlorociboria aeruginella?


Grateful before,
Alex

Hans-Otto Baral, 19-07-2011 09:41
Hans-Otto Baral
Re : Chlorociboria on Fagus
Hi Alex

C. aeruginella is a species of herbaceous stems and leaves. On wood there is only aeruginascens and aeruginosa, which are indistinguishable from the green stain. But my data on substrate preferences say:

aeruginosa: Betula, Acer, ?Populus
aeruginascens: Quercus, Salix, Alnus, Carpinus, Fraxinus, Fagus, Laurus.

But Dixon gives also Betula for aeruginascens, and even conifers, and for aeruginosa? a very similar host spectrum.


Your spores perfectly fit to the more rare aeruginosa. Both species have short flexuous haurs but those of aeruginosa are warted, those of aeruginascens smooth.

Zotto