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19-04-2026 21:23

Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

17-04-2026 19:16

Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

12-04-2026 15:52

Gernot Friebes

Hi,I'm looking for help with this anamorph collect

14-04-2026 21:52

Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

16-04-2026 22:09

Buckwheat Pete

Hello, I'd like to ask about this older specimen:

15-04-2026 19:33

Fátima Durán Manzaneque

Hi!! I need help, I found this Ascomycete but I d

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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
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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.