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08-03-2013 20:27

Björn Wergen Björn Wergen

Hi there,here is an Amphisphaeriaceae which I am n

11-03-2013 04:19

Roland Labbé

Bonjour !  Voici un Catinella probable.Il se peu

09-03-2013 20:16

Nina Filippova

Probably somebody may know something about it, i w

10-03-2013 13:22

Nina Filippova

Venturia cassandrae (Gibbera cassandrae)It is comm

10-03-2013 12:09

Yannick Mourgues Yannick Mourgues

Bonjour,où pourrais-je trouver : L. Holm & K.

09-03-2013 19:56

Edit Szilvásy Edit Szilvásy

Dear Forum, I found today this little ascomycota.

09-03-2013 17:27

Nina Filippova

Gnomonia chamaemori (Gnomoniopsis chamaemori) Thi

08-03-2013 12:29

Nina Filippova

Good day.Mycosphaerella bacillifera ?I have come t

08-03-2013 12:51

Nina Filippova

Ophiognomonia nana ? Collected on dead leaves of

08-03-2013 12:59

Björn Wergen Björn Wergen

Hi there,I am looking for this article:Dulymamode,

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Amphisphaeriaceae - Lepteutypa?
Björn Wergen, 08-03-2013 20:27
Björn WergenHi there,

here is an Amphisphaeriaceae which I am not able to identify, I have tried different genera of the family but there was no matching species, not in Amphisphaeria, not in Lepteutypa. I do not have an idea of L. hederae since this species is not mentioned in any key I have tried.

Perithecia are embedded into the substrate, 0,2-0,5 mm, blackish, with a very short Ostiolus cracking the bark. There are inconspicuous stromatic structures surrounding the perithecia, clustering them up to 4-6.

Sp. 22-27x6,5-7,5µm, with 3 septations, which seem to have a reddish colour, hyaline at first, then very pale brown, in IKI greenish. Asci up to 160x9µm, 8 spores in uniseriate formation, IKI +.

Substrate is an attached Tilia cordata branch. Together with Hercospora tiliae and Splanchospora ampullacea.

Any idea?

regards,
björn
  • message #22395
  • message #22395
  • message #22395
Jacques Fournier, 08-03-2013 21:12
Jacques Fournier
Re : Amphisphaeriaceae - Lepteutypa?
Hi Bjorn,
I attach the description of L. hederae by Rappaz (1995). The ascospores you have seem narrower and more oblong. Most likely a Lepteutypa but whch one?
Cheers,
Jacques
Björn Wergen, 08-03-2013 21:27
Björn Wergen
Re : Amphisphaeriaceae - Lepteutypa?
Hi Jacques,

I think the Lepteutypa hederae I have on my page is the real L. hederae, which I had found on dead Hedera twigs. I am looking around for other genera but for now without any success. I mean, this one grows on Tilia, a tree with a wide distribution...so this fungus should be known :(

Thanks for the response.
Jaklitsch Walter, 09-03-2013 10:39
Re : Amphisphaeriaceae - Lepteutypa?
A large-spored L. fuckelii?
Björn, sende mir bitte einen Teil zum Kultivieren und Sequenzieren, auch vom Hedera-Material, wenn es nicht zu alt (weniger als ein Jahr) und nicht hitzegetrocknet ist.
LG, Walter
Björn Wergen, 09-03-2013 22:42
Björn Wergen
Re : Amphisphaeriaceae - Lepteutypa?
Hallo Walter,

wird gemacht, ich schicke dir diese Kollektion. Die L. hederae-Kollektion war vom letzten Jahr, ich habe sie aber auch ehrlich gesagt nicht mehr da.

lg björn
Adrian Carter, 11-03-2013 12:32
Re : Amphisphaeriaceae - Lepteutypa?
Hello All:

As Walter suggests, Lepteutypa fuckelii (Nitschke) Petrak seems a likely candidate. Shoemaker & Muller (1965) redescribed the type specimen from bark of Tilia platyphylla collected in Moravia (CJB 43:1457-1460).

Adrian Carter