Basidiomata and microscopic features of Mycena hongfengensis a–e basidiomata f basidiospores g, h basidia i cheilocystidia j, k dermatocysts in the pileipellis l dermatocysts in the stipitipellis. Structures (f–j, l) were stained in a 1% Congo red solution and k were rehydrated in a 5% KOH solution. Scale bars: 5 mm (a–c, e); 1 mm (d); 5 μm (f); 10 μm (g–l).