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28-02-2026 11:05

Peziza
Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

23-12-2025 08:27

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

07-03-2026 22:22

Volutella?
Josep Torres Josep Torres

Hello.Some very tiny conidiomes collected in the D

07-03-2026 13:06

Phaeohelotium parasulphuratus ?
éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

06-03-2026 17:51

Orbilia?
William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 16:30

Is this Diaporthe rudis?
François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

06-03-2026 09:41

indian literature
Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

05-03-2026 19:29

Ciboria caucus?
William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

19-02-2026 17:49

Ayuda con Tarzetta sp
Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

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Pyreno with setae on Euphorbia
Maren Kamke, 10-02-2014 18:09
Maren KamkeHi again,
this pyreno is a find on a stem of Euphorbia from the coastal dunes. The perethecia are very small 0,01 mm, setae up to 165 x 5 µm, with septa. I didn't manage to find asci only ascospores which are hyalin, allantoid to fusiform, aseptate, (21-26) 23,45 x 3,9 (3,5-4) µm.
Does somebody have an idea in spite of the missing data?
Regards Maren
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Björn Wergen, 10-02-2014 19:03
Björn Wergen
Re : Pyreno with setae on Euphorbia
Hi Maren,

I think your specimen is too old or just an old conidiomata. Probably the spores do not belong to the hairy fruitbody at all...

regards,
björn
Maren Kamke, 10-02-2014 22:43
Maren Kamke
Re : Pyreno with setae on Euphorbia
Hi Björn,
I think you might be right that the spores do not belong. There are of course often many different species on one stem.
Thanks
Maren
Luc Bailly, 11-02-2014 19:12
Luc Bailly
Re : Pyreno with setae on Euphorbia
Hi Maren,
It looks like a Colletotrichum to me. Telling it's a Colletrotrichum is quite easy, but after... Look at this ref first:
http://studiesinmycology.org/content/73/1.toc
If you find nothing, then the specimen will probably need further studies, and it'd be better to send it to Ulrike Damm at CBS in The Netherlands.

Cheers - LUC.

Edit: More here: http://www.fungaldiversity.org/fdp/jinds3.php#vol39
Luc Bailly, 11-02-2014 21:21
Luc Bailly
Re : Pyreno with setae on Euphorbia
I took a bit of time to check. Look at the papers from Fungal Diversity: there's Colletotrichum lineola which has been found on Euphorbia esula in Germany and Canada. The size of conidia's you measured is close to what's given for that taxon.

Now, I don't say it's that species: it's only a hypothesis. Colletotrichum are so difficult and with so many taxa it's an issue for professionals!
Cheers - LUC.