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14-04-2026 05:32

Pyrenomycete with yellow subiculum on Aralia
Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

sur feuilles de Luzula
Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

12-04-2026 15:52

Anamorph on Salix
Gernot Friebes

Hi,I'm looking for help with this anamorph collect

14-04-2026 21:52

Thyriothecioid anamorph on Carex elata
Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

16-04-2026 22:09

Parorbiliopsis samarae?
Buckwheat Pete

Hello, I'd like to ask about this older specimen:

15-04-2026 19:33

Scutellinia cf. citrina
Fátima Durán Manzaneque

Hi!! I need help, I found this Ascomycete but I d

14-04-2026 20:31

Psilachnum lateritioalbum on Phragmites australis?
Gernot Friebes

Hi,can this be Psilachnum lateritioalbum on Phragm

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

12-04-2026 12:22

Unknown anamorph on Primula eliator
William Slosse William Slosse

In a dune grassland in Oostduinkerke (Belgium), on

11-04-2026 15:45

Article search - Octospora ithacaensis
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Please, could anyone send me this paper?Moyne G.,

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Melastiza or Aleuria??
Jac Gelderblom, 05-11-2020 11:16
Dear friends

in a heatherfield (Calluna) on soil I found orange discos (diameter 2-5 mm).

The spore-dimensions are 21-23x9,5-10 micron (with oranamentation) and 15-17x6,5-8 micron without ornamentation. Ascus ca 230x12 micron. Further info: see foto's.

Melastiza flavorubens and Aleuria congrex came into my mind but I am not at all sure.

I hope you can help me.

Friendly greetings

Jac Gelderblom

Foto 1: Ascomata

Foto 2: spores in water

Foto3: spores in cotton blue

foto 4 parafyses in Meltzer reagens

fotot 5: hairs excipulum
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Gilbert MOYNE, 05-11-2020 11:51
Re : Melastiza or Aleuria??
Il devait y avoir des petites mousses sur le sol. La forme très spéciale des spores semblant ornées de petites épines me fait penser à Octospora bridei à spores mesurant normalement : 22-26 x 11,5-13 µm.

Gilbert


Hans-Otto Baral, 05-11-2020 11:52
Hans-Otto Baral
Re : Melastiza or Aleuria??
I know Aleuria with biguttulate (living) spores abd Melastiza with multiguttulate spores, but I am not sure if this applies to all species of each genus.
Jac Gelderblom, 05-11-2020 13:20
Re : Melastiza or Aleuria??
Il y avait beaucoup de petites mousses sur le sol (je ne sais pas quelle espèce).

Les spores sont peut être pas parfaitement mures; il ný avait pas de spores libres dans la préparation. Seulemant après "toucher" j'ai vu quelques spores libres.

Quant à moi ca va assez bien avec Octospora bridei.

Amitiés

Jac
François Bartholomeeusen, 05-11-2020 16:12
Re : Melastiza or Aleuria??
Hi Jac,

Is Aleuria exigua not possible?

Greetings,

François
Hans-Otto Baral, 05-11-2020 16:36
Hans-Otto Baral
Re : Melastiza or Aleuria??
I consider these spores mature. O. bridei is a minute species and has no such terminal caps.

I do not know A. exigua, and I opnly know Aleuria with a complete or incomplete net, but none with such small dense warts.
Jac Gelderblom, 05-11-2020 17:18
Re : Melastiza or Aleuria??
Thanks everyone.

I also considered the possibility of A. exigua,

The terminal caps fits better in that species but what bothers me is the lack of any trace of af a reticulum

Greetings

Jac
Jac Gelderblom, 05-11-2020 19:06
Re : Melastiza or Aleuria??
Zooming in on the fourth spore seen from the rightbottom corner  you can see there is a reticulum ont the spore.

So for me it is now defenitively Aleuria exigua

Everybody thanks for your input!!!

Greetings

Jac
Patrice TANCHAUD, 06-11-2020 19:56
Re : Melastiza or Aleuria??
Bonsoir Jac,

c'est le nom que je proposerais également, comme ici :


Bien amicalement.

Patrice