Dear collegues,
today I found a rich collection of a Hyaloscypha species on a Fagus branch submersed in floating water of a mountain river, associated with Hymenoscyphus imberbis and Graddonia coracina.

Negative porus reaction and absence of croziers, together with cylindric to bottle-shaped hairs and spores with big oil drops led to Parorbiliopsis minuta, now Hyaloscypha minuta.

This surprised me, as I know P./H. minuta only from hardwood on more or less drier places and have never heared of it growing aquatic.The whole collection is in good condition, and as it is accompagnied by Graddonia it is evidently not fallen into the river short time ago but must have been growing sbmersed already.

Has anyone found P./H. minuta in similar aquatic conditions yet?

all the best,
Andreas