Hebeloma subaustrale A basidiospores and B spore ornamentation of holotype FLAS-F-19345 ×1600 C spores of SPFS-2011-63 (HJB17796) in Melzer’s reagent ×1600 D spores and cheilocystidia of holotype ×1000 E cheilocystidia of isotype TENN-F-021177 ×1000 F cheilocystidia of holotype ×1000 G caulocystidia of isotype ×1000 H cutis of SPFS-2011-63 ×125. All in KOH, except C. I basidiomata of collection SPFS-2011-63. Scale bars: 5 µm (A–G); 50 µm (H). Photos A–G H.J. Beker H D. Bartholow.