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06-04-2026 08:15

Lothar Krieglsteiner Lothar Krieglsteiner

some days ago, on the lower surface of leaf of Que

05-04-2026 22:46

Lothar Krieglsteiner Lothar Krieglsteiner

on wood of Ceratonia, Algarve, 3.4.2026.The color

03-04-2026 17:11

Bohan Jia

Lastly, I have found these small apothecia on a co

31-03-2026 21:18

Miguel Ãngel Ribes Miguel Ángel Ribes

Good evening. oes anyone have the original descrip

31-03-2026 20:57

Stefan Blaser

Hello everybody, I hope somebody can help me with

26-03-2026 15:31

Ãke Widgren Åke Widgren

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

31-03-2026 16:20

Mlcoch Patrik Mlcoch Patrik

Hello, Please about help with determination. On

31-03-2026 08:19

Bernard CLESSE Bernard CLESSE

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

30-03-2026 12:18

Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

30-03-2026 12:03

William Slosse William Slosse

Hello all,On 27/03/26, in Kraaiveld in Wingene (Be

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minute hairy discomycete from Portugal - Fuscolachnum?
Lothar Krieglsteiner, 06-04-2026 08:15
Lothar Krieglsteinersome days ago, on the lower surface of leaf of Quercus suber, together with Micropeziza mollisioides and Penicillium aureocephalum, Algarve.
The apothecia were not fully ripe and its hairs were agglutinated with amorphous crystals to large extent. The few free spores (quite moving in the slide) were about 5-7/1,5-2 µn large. Paraphyses are filiform and with some guttule content. The asci are (some ..) 8-spored, and I did not find croziers. With Barals solution they react faintlly bluish (hardly to get in the picture). The excipulum is of textura angularis-prismatica, the end-cells (as they could be observed) are about 20-35/3-4 µm long and brownish, they bear protuberances similar to Mollisina but shorter. 
Who can help further?
Best regards, Lothar
  • message #85024
  • message #85024
  • message #85024
Hans-Otto Baral, 06-04-2026 09:35
Re : minute hairy discomycete from Portugal - Fuscolachnum?
Hallo Lothar

this must be Graddonidiscus hispanicus, which should have simple-septate ascus base. 

Alternatively G. vandae (= Dasyscyphus coruscatus) should be compared, whch has croziers.

See my folders in Hyaloscyphaceae, HB 7466, ERD 7054, HB 5199a
Lothar Krieglsteiner, 06-04-2026 09:50
Lothar Krieglsteiner
Re : minute hairy discomycete from Portugal - Fuscolachnum?
Hello Zotto,
great - thank you very much.
I forgot to add in my post that I did not find croziers.
Best regards, Lothar