Geranium Brittlegill (Russula fellea)
#Mushrooms, #Nature, #Brittlegills, #Microscopy

This rather pretty, straw coloured, brittle gill found under beech trees is easily identified by its distinct, geranium-like, smell. It’s faint at first, but if you bring it into the house for further examination you will soon know it’s there.
The gills and stem are whitish, with hue matching the cap. Spore print is off white.
The cross section shows adnexed gills and white flesh.
Spores are ellipsoid, with that typical russula tail, in this speciment everaging 9.3 x 7.3 micron, Q 1.28 (the spore on the far left is seen looking along the longitudinal axis). As the next image shows, they are covered in quite long spines with some faint interconnections.
Spores in Meltzer’s reagent show the spines and network of connections. Focus stacked at ~1700x magnification (100x lens).