Accès membres

Mot de passe perdu? S'inscrire

17-07-2025 11:55

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

Hi,do you think this collection could be R. ulmari

25-02-2023 18:36

Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

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Macrodiplodiopsis desmazieresii on Platanus occidentalis
Ethan Crenson, 04-03-2019 06:04
In Brooklyn, New York.  I believe I have found Macrodiplodiopsis desmazieresii on a fallen branch of Platanus occidentalis in my neighborhood.  There are tiny pustules beneath the bark which contain large, thick-walled, brown conidia that are 3-septate and enveloped in a mucoid (?) sheathe.  Conidia are 44.5-52 x 17.3-19.8µm.  The branch was lying at the base of a large Platanus occidentalis--the only one in the area. The neighborhood is otherwise heavily populated by Platanus x acerifolia, so I suppose it is possible that the branch was from one of those trees.  Has M. desmazieresii been recorded on Platanus occidentalis?  Is my identification correct?

Thank you!
  • message #56580
  • message #56580
  • message #56580
Katarina Pastircakova, 04-03-2019 08:27
Re : Macrodiplodiopsis desmazieresii on Platanus occidentalis
Hi Ethan,

your identification is correct. Platanus occidentalis is also the host of M. desmazieri.
You can find some records here: 
https://nt.ars-grin.gov/fungaldatabases/new_allView.cfm?whichone=all&thisName=Macrodiplodiopsis%20desmazieresii&organismtype=Fungus&fromAllCount=yes

Katarina
Ethan Crenson, 05-03-2019 04:11
Re : Macrodiplodiopsis desmazieresii on Platanus occidentalis
Thank you very much.  I can't believe I did not know about the existence of that database!