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22-04-2026 01:06

Neonectria ou thelonectria ?
Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

21-04-2026 22:14

Peziza depressa?
Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

21-04-2026 21:00

Hymenoscyphus sp
Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Wentiomyces-like on Salix
Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Lophodermium on Typha
Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Hyphomycete on Typha
Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

20-04-2026 22:00

Trichobolus dextrinoideosetosus?
Malcolm Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

19-04-2026 21:23

Hairy anamorph on plywood with beaked curved conidia
Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Anamorphic fungus on plywood
Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

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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