Additions to the taxonomy of Lagarobasidium and Xylodon (Hymenochaetales, Basidiomycota) Author Viner, Ilya Author Spirin, Viacheslav Author Zibarova, Lucie Author Larsson, Karl-Henrik text MycoKeys 2018 41 65 90 http://dx.doi.org/10.3897/mycokeys.41.28987 journal article http://dx.doi.org/10.3897/mycokeys.41.28987 1314-4049--65 Xylodon rickii (Hjortstam & Ryvarden) K.H. Larss. comb. nov. Basionym. Hypochnicium rickii Hjortstam & Ryvarden, Mycotaxon 15: 271. 1982. ≡ Odontia polycystidifera Rick, Iheringia, Ser . Bot. 5: 163. 1959. Nom. inval. (Code Art. 40.1). Type. Brazil. S. Salvador, 5 Apr 1944, Rick 20847 (holotype PACA, by original designation). For a description, see Hjortstam and Ryvarden (1982) . Gorjon (2012) could not verify the presence of large capitate cystidia, similar to those present in X. magnifica and included in the original description by Hjortstam and Ryvarden (1982) . We restudied the isotype in herbarium O and can confirm that these large cystidia do exist, which supports a possible position of this species close to X. detriticus and X. pruinosus .