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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!
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
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!