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anamorph on living leaves of Prunus serotina
Riet van Oosten,
06-10-2021 19:23

Hello,
Just a try ...
Found by Willy Heimeriks, October 2021, the Netherlands, on living leaves of Prunus serotina.
On the same leaf Miricatena prunicola.
On the same leaf Miricatena prunicola.
Conidia: Me: 5.2 x 2.1 µm.
Greetings, Riet
Chris Yeates,
07-10-2021 16:45

Re : anamorph on living leaves of Prunus serotina
Hello Riet
These foliicolous fungi with small hyaline unicellular conidia are in a very confused state, with vast numbers of names in Phoma, Phyllosticta etc. created in the past and mostly based on host relationships.
There is a Phyllosticta serotina https://www.biodiversitylibrary.org/page/48300462#page/32/mode/1up
and a Ph. treleasei https://www.biodiversitylibrary.org/page/32874282#page/295/mode/1up
van der Aa comments on the latter - see attached.
When something as distinctive as the Miricatena comes along that is a more hopeful direction ;-)
Sorry can't be of any real help here.
Kind regards, Chris
Riet van Oosten,
07-10-2021 17:00

Re : anamorph on living leaves of Prunus serotina
Hello Chris,
Thank you for your information!
Indeed Miricatena prunicola is nice and clear :-)
Kind regards, Riet