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19-11-2013 17:54

Björn Wergen Björn Wergen

Hi there,in Austria, my friend has found an intere

18-11-2013 20:53

Gernot Friebes

Hi,does anyone have a PDF of this paper: Groves J.

18-11-2013 07:46

Alex Akulov Alex Akulov

Dear friendsLet me to inform you, that vollumes of

14-11-2013 10:15

Peter Thompson

Hello Everyone,I recently found an ascomycete grow

18-11-2013 10:25

Salvador Tello

Hola.Este Hypoderma lo encontré hace unos días.

26-10-2013 08:07

jean-marc moingeon

Bonjour,Connais t-on l'anamorphe de Neobarya auran

17-11-2013 22:19

Ralph Vandiest Ralph Vandiest

Hello,I found these species on dead wood (I think

17-11-2013 19:15

Salvador Tello

Hola.Tengo este Hymenoscyphus que encontré en un

17-11-2013 19:23

Esquivel-Rios Eduardo

Hola todos:Encontre este especimen creciendo sobre

17-11-2013 19:14

Esquivel-Rios Eduardo

Hola Todos.Esta Scutellinia la encontramos crecien

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Hypoxylon?
Björn Wergen, 19-11-2013 17:54
Björn WergenHi there,

in Austria, my friend has found an interesting collection of a hypoxyloid species, from which I do not know what it is. Perithecia are about 0,6-0,9mm and are embedded in a black stroma, growing in rows on dead deciduous wood surface. Looking at the non-ostiolate perithecia, I first thought about Creosphaeria sassafras, but spores do not fit this species.

In KOH, it has no reaction. Asci Lugol +, spores have a conspicuous germ slit.

Any idea?


All the best,
björn
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Jacques Fournier, 19-11-2013 18:15
Jacques Fournier
Re : Hypoxylon?
Hi Bjorn,
not a Hypoxylon because of the lack of coloured granules and perithecia deeply immersed beneath surface.
It is a Lopadostoma, close to L. gastrinum based on the pale entostroma and its situation often superficial on dead wood but ascospores average a bit larger than reported for this species. Is the germ slit on one side or circumferential? The host is also important to know.
Cheers,
Jacques
Björn Wergen, 19-11-2013 18:21
Björn Wergen
Re : Hypoxylon?
Hi Jacques,

yes I had lots of doubts about my determination as Hypoxylon, but I did not find any other genus which it can belong to...

The germ slit is only on one side and the host should be Robinia.