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25-03-2026 22:23

Orbilia with resin deposits
Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

25-03-2026 20:53

Didymopsis helvellae on Helvella?
François Bartholomeeusen

Dear forum members,On 23 March 2026, I found sever

23-03-2026 20:16

Coprotus 210226 315
Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

24-03-2026 15:44

Leptodontidium cf. trabinellum
Åge Oterhals

I hope someone can confirm the name of this collec

25-03-2026 15:06

Hyaloscypha albohyalina à confirmer
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

25-03-2026 10:35

Encoelia impudicella?
Hulda Caroline Holte

Hello,I collected this species growing on a dead b

25-03-2026 13:54

Litterature on Eutypa
Enrique Rubio Enrique Rubio

Does anyone know where I could download Paoletti's

25-03-2026 15:46

Schizoxylon ou proche
Michel Hairaud Michel Hairaud

Bonjour, Je sollicite de l'aide pour cette récol

24-03-2026 19:59

Sclerotinia binucleata?
William Slosse William Slosse

Hello everyone,On 23/03/26, I found the following

21-03-2026 15:13

MYXOMYCETICOLOUS FUNGI
Lepista Zacarias

Hello everyone, Does any one know of any literatu

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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