Mycobernardia Ghobad-Nejhad gen. nov.
MycoBank number: MB 839369; Index Fungorum number: IF 839369; Facesoffungi number: FoF;
Diagnosis: The genus is characterized by ceraceous, corticioid basidiomata, a monomitic hyphal system with clamps at all septa, subcylindrical to suburniform basidia with occasional internal repetition, and curved, allantoid basidiospores.
Etymology: myco + Bernard, in memory of Bernard Duhem (1964–2016), French mycologist at PC herbarium, Paris.
Type species: Mycobernardia incrustans (Parmasto) Ghobad- Nejhad comb. nov. Mycobank no.: MB840807.
≡ Galzinia incrustans Parmasto, Eesti NSV Tead. Akad. Toim., Biol. seer 14(2): 225 (1965).
= Corticium roseopallens Burt, Proceedings of the Boston Society for Natural History 33: 173 (1907) (Type: PC!). Basidiomata effused, thin, adnate, ceraceous; hymenial surface smooth, cream-colored with a faint rose tint. Hyphal system monomitic, all hyphae with clamps, richly branched. Subiculum thin. Hymenium dense, with abundant probasidia and basidia. Basidia subcylindrical to suburniform, occasionally with internal repetition. Cystidia and dendrohyphidia none. Basidiospores curved, allantoid, thin-walled, CB–, IKI–.
Notes: – Mycobernardia is monotypic, and its type was previously assigned to Galzinia because of its curved, allantoid basidiospores and internally repetitive basidia. Galzinia species, including the generic type G. pedicellata Bourdot, develop very thin, almost invisible, watery gray basidiomata. In contrast, basidiomata in Mycobernardia are thicker, distinct, ceraceous, and cream-colored. Species in the two genera also differ in their nuclear behavior, subnormal in G. pedicellata and heterocytic in B. incrustans (Nobles, 1937; Stalpers, 1978; Boidin and Lanquetin, 1984). Molecular analyses of sequences from the type specimen of G. longibasidia Hallenb. place it in the Agaricales (Li et al., 2016).
Species
Mycobernardia incrustans