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Amphisphaeriaceae - Lepteutypa?
Björn Wergen,
08-03-2013 20:27
Hi 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
Jacques Fournier,
08-03-2013 21:12
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
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
Lepteutypa-hederae-0001.docx
Björn Wergen,
08-03-2013 21:27
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.
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, 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
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
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
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