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27-09-2014 22:16

Maren Kamke Maren Kamke

Hi everybody,I found this very large Trematosphaer

28-09-2014 17:48

Gernot Friebes

Hi, this species puzzles me a bit. It grows under

28-09-2014 16:10

Margaux Boeraeve

Hi,I found this ascomycete on soil. The top of the

24-09-2014 21:33

Vasileios Kaounas Vasileios Kaounas

Could you tell me which way to look ?Diam. 1 mm.

26-09-2014 23:50

M Jonathan M Jonathan

trouvé sur un sol boueux et rocheux, asque 300-35

26-09-2014 15:15

Alessio Pierotti Alessio Pierotti

can someone help me with this work ?Booth, C.; O'R

26-09-2014 13:48

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de una Pulvinula qu

26-09-2014 15:13

Alessio Pierotti Alessio Pierotti

can someone help me with this work ?Booth, C.; O'R

25-09-2014 08:22

Blasco Rafael Blasco Rafael

Hola, Tengo ESTAS Muestras Recogidas en Hayedo - a

24-09-2014 20:25

Enrique Rubio Enrique Rubio

Bonsoir les amis Peut etre j'avais recolté le me

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Trematosphaeria biappendiculata?
Maren Kamke, 27-09-2014 22:16
Maren KamkeHi everybody,
I found this very large Trematosphaeria species? on many branches buried in the riverbed of the Elbe last weekend. Perithecia immersed, diameter up to 1.2 mm, wall thickness basal up to 55 µm. Asci up to 143 x 15 µm, IKI negative. Spores mostly 7-septate, endcells slightly paler than the others, in the 4 middle cells large oil-drops plus eventually some smaller ones. Spores at both ends with hyaline appendages (with blue ink), (33-39) 35.5 x 9.18 (8.5-11) µm. Could it be Trematosphaeria biappendiculata Kaz. Tanaka, Y. Harada & M.E. Barr, Fungal Diversity 19: 149 (2005)?
Regards, Maren
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Jacques Fournier, 27-09-2014 22:39
Jacques Fournier
Re : Trematosphaeria biappendiculata?
Good evening Maren,
I think I already encountered your fungus that I collected once on submerged wood in western France. I think it is slightly different from T. biappendiculata by its immersed ascomata with a crest-like apex, peridium composed of smaller cells and ascospores with more septa. No doubt they are closely related, to me it might be an undescribed European counterpart of the Japanese taxon.
Cheers,
Jacques
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Maren Kamke, 28-09-2014 21:03
Maren Kamke
Re : Trematosphaeria biappendiculata?
Hi Jacques,
thank you for your opinion. An undescribed species would explain why I could not find it in any key. The japanese species was the closest I could find.
Regards, Maren