Dear all, Thank you very much for your responses, all very helpful. It does seem that I am dealing with fungal spores, according to the size (1-2 mm), shape (globullar, rather than flattened) and lack of any features that would point to pteridophyte (thank you also for the description of both types). I will try to produce a decent photo, just to confirm. With best wishes, Dragana Filipovic |