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11-11-2025 20:16

yellow discs on a Quercus robur leaf
Bohan Jia

Hi, lastly I have found these tiny yellow decayin

11-11-2025 20:12

Yellow discs on a Quercus robur leaf
Bohan Jia

Hi,  lastly I have found these tiny yellow decay

11-11-2025 20:12

Yellow discs on a Quercus robur leaf
Bohan Jia

Hi,  lastly I have found these tiny yellow decay

11-11-2025 20:11

Yellow discs on a Quercus robur leaf
Bohan Jia

Hi,  lastly I have found these tiny yellow decay

11-11-2025 20:11

Yellow discs on a Quercus robur leaf
Bohan Jia

Hi,  lastly I have found these tiny yellow decay

09-11-2025 13:20

Ascomycete on Rubus.
Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Phacidium
Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Allophylaria subliciformis?
Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Leptosphaeria?
Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Mollisia sur Pinus
Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

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Black pyreno on Populus
Juuso Äikäs, 29-04-2021 18:22
These were growing on a dead, standing Populus tremula today. Maybe not be entirely ripe, but I measured a few spores:

(14.1) 15 - 16.9 (17.3) × (4.3) 4.6 - 5 (5.2) µm
Q = (2.9) 3 - 3.5 (3.8) ; N = 7
Me = 15.7 × 4.8 µm ; Qe = 3.3


Any idea what this is?
  • message #68667
  • message #68667
  • message #68667
  • message #68667
Chris Yeates, 30-04-2021 00:12
Chris Yeates
Re : Black pyreno on Populus
Hi


Best wishes

Chris
Juuso Äikäs, 30-04-2021 00:30
Re : Black pyreno on Populus
Yes -- that seems to fit well. Apparently quite a common species. Thanks!