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01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

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Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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Ethan Crenson

Hi all,  I would like an opinion on whether this

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Maria Plekkenpol Maria Plekkenpol

Hello,Yesterday I found these on burnt soil. Apoth

29-10-2025 19:02

Castillo Joseba Castillo Joseba

De la pasada semana en rama posiblemente de hayaPi

25-11-2016 13:54

Stephen Martin Mifsud Stephen Martin Mifsud

Hi, I found numerous seeds of Washingtonia robusta

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Bernard Declercq Bernard Declercq

Hello.I'm searching for the following paper:Punith

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Peter Welt Peter Welt

Who has this article? Doveri, F. 2007. Sporormiel

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Carl Farmer

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Phaeosphaeria subgenus Vagispora
Björn Wergen, 22-02-2012 20:43
Björn WergenHi,

I have found a Phaeosphaeria on dead Poaceae stems with 5septated, 27-30x6-7,5µm spores. I have tried Shoemaker&Babcock and Leuchtmann and come to Phaeosphaeria larseniana, which has smaller spores (Shoemaker: 20-27x7-9µm). I am sure it is a species of subgenus Vagispora. Perhaps someone can help :)

I did not see a sheath. The spores are smooth.

regards,
björn
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I think it can be P. vagans with no longitudinal septa. P. vagans seems to be a very variable specimen...
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Björn Wergen, 23-02-2012 14:56
Björn Wergen
Re : Phaeosphaeria subgenus Vagispora
Here are some new photos, I am sure it is a dicote substrate, the fb are about 80-150µm broad and have a small ostiolus. Spores are permanently (I have 3 collections now) around 28-32x5,5-7,5µm, quiet too big and too pale for P. luctuosa, which has a similar length. Perhaps this photos will help by identification.

The interesting thing is that the spores have obviously 5 septa in most cases, but inside asci there are many with more septa, I have counted up to 9 septa in some cases). There are no longitudinal septa. 

regards,
björn

btw: I am always looking for literature about Phaeosphaeria, Leptosphaeria and allies (Massariosphaeria, Kalmusia, Paraphaeosphaeria etc.).
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