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30-12-2025 16:44

Tubercularia aff. lateritia
Pascal Ducos

Bonjour,Une anamorphe rose stipitée, très nombre

29-12-2025 23:20

Sordariomycetes
éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

30-12-2025 17:14

Asco brun sur renouée du Japon (Reynoutria japonica) (d'Albert Grobelny)
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous aider Albe

30-12-2025 15:31

Starform
Johan Boonefaes Johan Boonefaes

I found this unknown star form by the microscopy o

29-12-2025 10:15

Propolis sp. on Pinus sylvestris
Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

30-12-2025 09:04

Pyrenomycete on rosemary
Josep Torres Josep Torres

Hello.A Pyrenomycete sprouting sparsely but very d

29-12-2025 17:44

Lamprospora ? laquelle ?
Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

12-11-2021 00:03

White dots on pine
Lepista Zacarias

Hi everybody,A week ago in my fiels trip I noticed

29-12-2025 17:51

En Rosmarinus
Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

29-12-2025 17:12

asco imparfait et oïdium sur tige morte de Polygonatum odoratum
Bernard CLESSE Bernard CLESSE

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

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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