Again Piptoporus, but I found the spores

[Leo van Griensven]

Again Piptoporus betulinus. Technovit 7100 2 um cuts stained by Calcofluor white, excited at 450 nm and observed above 515 nm. Zeiss Universal Photomic II with 63x/1.25 (oil) Neofluar . Camera Renusco DTM500 with ScopePhoto imaging software.

These pictures may not be technically beautiful, but I like what they tell me.
The basidiospores of Piptoporus betulinus look round to ellipsoid having a size of 1.8- 2.0 um .  In the second picture the 4 spores stick together .

The picture of the clamp connection of  one of the generative hyphae tells us that the mycelium is heterokaryotic, but we knew that already because there are basidiospores present.