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05-04-2026 22:46

blue mould from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

on wood of Ceratonia, Algarve, 3.4.2026.The color

05-04-2026 13:33

Mollisia sp?
Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Unknown helotiales on Abies bark
Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

03-04-2026 17:11

Schizoxylon?
Bohan Jia

Lastly, I have found these small apothecia on a co

31-03-2026 21:18

Lambertella tetrica paper
Miguel Ãngel Ribes Miguel Ángel Ribes

Good evening. oes anyone have the original descrip

31-03-2026 20:57

"Nectria" - for a lack of better knowledge...
Stefan Blaser

Hello everybody, I hope somebody can help me with

26-03-2026 15:31

Hymenoscyphus ombrophiliformis?
Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

31-03-2026 16:20

Helotiales from Tanzania
Mlcoch Patrik Mlcoch Patrik

Hello, Please about help with determination. On

31-03-2026 08:19

Daldinia childiae parasité
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-03-2026 12:18

Demande d'aide
Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

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apothecium on Rhamnus alaternus
Angel Pintos, 01-05-2018 20:37
Angel PintosHello, I need help with this bitunicate apothecium on dead twig of Rhamnus alaternus, at first I thought on Rhizodiscina sp but when I saw it carefully my doubts began. 
paraphysis cellular with rounded apex and with brown stools.
Asci bitunicate, clavate normally octosporic.
Ascospores, phragmospora when  young starting with one septum, blue color, when mature 5 septa, dark brown  cylindrical with hyaline apices, widening in the middle and with rounded apices.
Thanks for your help
Angel
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Hans-Otto Baral, 01-05-2018 21:49
Hans-Otto Baral
Re : apothecium on Rhamnus alaternus
Would be helpful to have a spore size. Also the Lugol reaction should be tested. Some bitunicates have hemiamyloid hymenia.

You have only a single apo? I guess it is ca. 0.4 mm diam.?
Angel Pintos, 02-05-2018 05:47
Angel Pintos
Re : apothecium on Rhamnus alaternus
Apothecium 250 - 400 microns of diameter, hamathecium become blue with lugol.
ascospores 20 -25 X 6 - 9

regards
Angel
Hans-Otto Baral, 02-05-2018 08:01
Hans-Otto Baral
Re : apothecium on Rhamnus alaternus
I have a Baggea-Melaspilea folder where I put bitunicate taxa with amyloid hymenium, but none fits your species, and most have hysterioid apothecia. This probably artificial group seems to be badly known. In Kutorga & Hawksworth 1997 I find no genus that fits.
Zotto
Angel Pintos, 02-05-2018 19:45
Angel Pintos
Re : apothecium on Rhamnus alaternus
Thanks a lot Otto
Regards

Angel