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18-05-2019 21:17

Django Grootmyers

Hello, I have been having trouble identifying this

22-05-2019 18:10

Thomas Læssøe

I have encountered scanty materiale of a tiny (!)

21-05-2019 18:13

Blasco Rafael Blasco Rafael

Hola, alguna idea de que genero mirar, me recuerda

20-05-2019 22:07

Ethan Crenson

In New York City on what I believe are raccoon dro

22-05-2019 16:05

Eike- Milorad Heinemann Eike- Milorad Heinemann

Hello together on saturday we found also this Mol

22-05-2019 19:05

Roger Melo Roger Melo

It looks like a composite apothecia on wood of an

21-05-2019 21:41

Eike- Milorad Heinemann Eike- Milorad Heinemann

Hello together on saturday we found this Pyrenope

22-05-2019 11:10


Bonjour à toutes et tous,Auriez-vous une idée su

21-05-2019 22:25

Ron Bronckers

Hi everybody,Maybe someone can help me to obtain a

21-05-2019 11:21

Castillo Joseba Castillo Joseba

Me mandan el material desde Galicia,  recolectado

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Yellow disc on Quercus
Marc Detollenaere, 19-09-2018 23:11
Marc Detollenaere

Good evening everybody,

This afternoon we found some small yellow discs with dentate margin on leaves of Quercus.

The asci were cylindrical, thick walled, 120x14µ, 8-spored and IKI pos. Paraphyses were filiform and contained long refractive vacuoles. Spores measured 20-22x6-7µ and had 2 large guttules.The outer excipulum consisted of textura angularis.

I think it is something of the subfamily Dermateoideae.

Someone could help me further?

  • message #54697
  • message #54697
  • message #54697
  • message #54697
  • message #54697
Hans-Otto Baral, 20-09-2018 07:29
Hans-Otto Baral
Re : Yellow disc on Quercus
This looks much like Phaeohelotium epiphyllum (= Hymenosc. e.)
Marc Detollenaere, 20-09-2018 09:52
Marc Detollenaere
Re : Yellow disc on Quercus


You are right I have been misleaded by the general key in Nordic Macromycetes where the slightly brown excipulum and the angular cells brought me to the Dermateaceae.

But all the typical features of P epiphyllum were present including the reddening after damaging