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27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

27-04-2026 17:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

27-04-2026 12:54

Steve Clements

Bonjour. Ce petit champignon blanc résupiné et

27-04-2026 09:59

Pauline. Penna

Bonjour Can anyone advise me on these pycnidia fo

26-04-2026 21:08

William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

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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?
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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.