Fig. 4

Russula dryadicola (IB 1997/0750, neotype). Microscopic features of the hymenium. a. Basidia and basidiola. b. Marginal cells. c. Basidiospores in Melzer’s reagent. d. Cheilocystidia. e. Pleurocystidia. Contents of cystidia are represented as observed in Congo red. Bars = 10 μm, spores = 5 μm. Drawings: S.A. & S.J