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18-08-2025 15:35

Lothar Krieglsteiner Lothar Krieglsteiner

.. in subarctic forest at side of small stream, ac

18-08-2025 16:01

Lothar Krieglsteiner Lothar Krieglsteiner

.. on water-soaked Betula wood lying in a small st

18-08-2025 17:52

Yanick BOULANGER

BonjourAu fil des conversations, j'ai lu que Hyalo

18-08-2025 15:17

Lothar Krieglsteiner Lothar Krieglsteiner

... on 6.7.25 in a subarctic mire near a small lak

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

31-12-2021 12:12

Georges Greiff

Happy New Year to All! I was hoping somebody coul

15-08-2025 12:47

Philippe PELLICIER

Bonjour, j'ai récolté cette Scutellinia au Col d

15-08-2025 21:50

Bernard CLESSE Bernard CLESSE

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

13-08-2025 12:17

Castillo Joseba Castillo Joseba

De ayer en la misma muestra que el Ascobulus anter

13-08-2025 22:41

Francois Guay Francois Guay

I found this species on decaying wood in Québec,

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Unknown black asco on vine/creeper
Sigrid Jakob, 04-03-2020 15:27
Black spheres growing between bark and wood of unknown creeper/vine, approx 0.7mm long. Spores septate, guttulate, with gel sheath and appendage, 32-35µm x 15-17µm. Asci bitunicate, 150µm long. New York area, urban hardwood forest. Does anyone recognize this species?
  • message #61878
  • message #61878
  • message #61878
  • message #61878
Lothar Krieglsteiner, 04-03-2020 18:02
Lothar Krieglsteiner
Re : Unknown black asco on vine/creeper

perhaps a Dothidea?


Best, Lothar

Jacques Fournier, 04-03-2020 21:40
Jacques Fournier
Re : Unknown black asco on vine/creeper
Hi Sigrid,

likely a Splanchnonemma. You should look into Barr (1982): On the Pleomassariaceae in North America, Mycotaxon 15: 3493-383.

Identifying the host is very helpful to ID the fungus, most of them are host-specific. Could your sample be on a Tilia branch?

Good luck,

Jacques


Sigrid Jakob, 04-03-2020 23:12
Re : Unknown black asco on vine/creeper
Jaques,

I think you're right. Thank you very much. Now that I look at the substrate it does look like Tilia cordata.
Alain GARDIENNET, 05-03-2020 09:51
Alain GARDIENNET
Re : Unknown black asco on vine/creeper

Yes, It's Tilia : on photos we can see typical parenchymatous fibers of Tilia.


and so it's Splanchnonema ampullaceum.


Alain

Sigrid Jakob, 05-03-2020 12:15
Re : Unknown black asco on vine/creeper
Alain,

thank you very much for the confirmation.