Cosmospora or Dialonectria on Asterosporium asterospermum

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Cosmospora or Dialonectria on Asterosporium asterospermum

Edvin Johannesen, 06-03-2025 23:27

Hello!

I have a collection with acervuli of Asterosporium asterospermum (Diaporthales) - see photo of conidia - with perithecia of a Cosmospora or Dialonectria apparently growing on A. asterospermum. The ascospores are 2-celled (see photos). I have not yet made any further studies or measurements. I would like to check if anyone knows if there is a Cosmospora or Dialonectria (or other nectriaceous species) associated with A. asterospermum.

Thanks in advance.

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