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26-03-2012 17:28

Yatsiuk Iryna Yatsiuk Iryna

Hello, dear friends! These 2 specimens some time

26-03-2012 22:38

Baeza  Yajaira Baeza Yajaira

Hello everyone im trying to identify some Durella'

26-03-2012 14:40

Enrique Rubio Enrique Rubio

Hi to all:I need the next biblio reference:HARMAJA

19-03-2012 13:16

Yannick Mourgues Yannick Mourgues

Bonjour à tous.Trouvé sur branche de Populus. Co

23-03-2012 23:14

Björn Wergen Björn Wergen

SalutI am looking for this one:Barr, M.E. (1990):

21-03-2012 17:32

Enrique Rubio Enrique Rubio

Hi to all:These blackish, small (up to 700 microns

22-03-2012 00:37

Luc Bailly Luc Bailly

Bonjour à tous,Récolté chez moi, en bord de rou

21-03-2012 23:44

Yannick Mourgues Yannick Mourgues

Bonsoir.Voici une espèce proche de Cryptosphaeria

21-01-2012 14:32

Norbert Heine Norbert Heine

Bonjour à tous, Hi to all, I'm looking for a co

01-12-2008 23:43

DirkW DirkW

bonjour forum, does anybody have a key for or f

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2 Cyathicula specimens: cyathoidea vs. pallida
Yatsiuk Iryna, 26-03-2012 17:28
Yatsiuk Iryna

Hello, dear friends!


These 2 specimens some time ago i identidied as C. cyathoidea. Now I see some differences in spore morphology, and I wonder whether one of them could be C. pallida.


The 1st was examined in fresh condition, the 2d in exciccated state.


So, the 1st specimen was collected in oak forest, on Urtica dioica rotten stem. 


Spores 7,3-12,6*2,2-3,6 um, with 1-3 small oil drops on each end. 


Asci IKI B, with croziers, 49-68*3,6-5,5 um


Cheers,


Irina

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Yatsiuk Iryna, 26-03-2012 17:33
Yatsiuk Iryna
Re : 2 Cyathicula specimens: cyathoidea vs. pallida

The 2d one was collected on a meadow, on rotten herbaceous stem. 


Spores 9,1-12,7*1,8-2,7 um, fusiform, sometimes slightly S-shaped


Asci IKI B, with croziers, 44-60*3,8-5,5 um

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Hans-Otto Baral, 26-03-2012 22:38
Hans-Otto Baral
Re : 2 Cyathicula specimens: cyathoidea vs. pallida
Hi Irina

in order to confuse you a bit :-)

C. pallida is a species with marginal teeth, at least as I understand it. It was treated by Breitenbach & Kränzlin under the wrong name C. dolosella. The marginal teeth are not shown on their photo, but they are mentioned, and I reexamined their material:

your whitish specimen could well be C. cyathoidea, quite a variable species. Are the spores actually up to 3.6µm? Regrettably, only the spores are alive in your preparations. Maybe you press too strong. The apical ring photo seems to exclude hymenoscyphus repandus.

The brown one reminds me of C. cacaliae.

Zotto
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Yatsiuk Iryna, 27-03-2012 11:44
Yatsiuk Iryna
Re : 2 Cyathicula specimens: cyathoidea vs. pallida

Hello, Zotto!


And thank you for answer.


Yes, I know about marginal teeth in C. pallida, but in my opinion they probably could be poorly visible/destructed, so on. The 2d one was collected in dry condition, so I cannot say surely whether it was brown in living state or not.


With best regards,


Irina