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12-11-2025 09:25

Pseudombrophila on soil
Viktorie Halasu Viktorie Halasu

Hello, I need help with a pale terrestric Pseudom

11-11-2025 20:16

yellow discs on a Quercus robur leaf
Bohan Jia

Hi, lastly I have found these tiny yellow decayin

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

06-11-2025 16:50

Hymenoscyphus sp?
Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

05-11-2025 11:33

Cladosporium ?
Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Hymenoscyphus on blueberry.
Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

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Macrodiplodiopsis desmazieresii? on Platanus
Ethan Crenson, 20-03-2017 18:51
Can anyone help me with this? In Central Park NYC, on a branch of Platanus × acerifolia. Low pustules pushing through the bark (the second photo shows a horizontal cut through the bark). Some of the pustules look as though they may have an ostiole or a short "beak".

Spores (Conidiospores) are brown, 3-septate, ovate. 41-47um by 15.5-18um. No asci seen.


I am assuming this is an anamorph. This seems to resemble the collection posted in forum message 28111 (apologies, I don't know how to link to another forum post without getting an error) ... but I am uncertain whether there was a consensus that that collection was Macrodiplodiopsis desmazieresii or if it matches mine.


Any assistance would be appreciated.


Ethan

  • message #48050
  • message #48050
  • message #48050
  • message #48050
  • message #48050
Bernard Declercq, 20-03-2017 21:34
Bernard Declercq
Re : Macrodiplodiopsis desmazieresii? on Platanus
Hi Ethan,

I think that your collection meets the description in Crous et al. (2015: 178 + fig. 10) and is indeed Macrodiplodiopsis desmazieresii.

Bernard
Chris Yeates, 20-03-2017 23:23
Chris Yeates
Re : Macrodiplodiopsis desmazieresii? on Platanus
http://www.ascofrance.com/search_forum/28111
Chris
Ethan Crenson, 21-03-2017 15:13
Re : Macrodiplodiopsis desmazieresii? on Platanus
Thanks for the information.  I am reading the relevant parts of Crous et. al. right now...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4500082/