Trichopeziza sulphurea FUCKEL

Typification of Trichopeziza sulphurea (PERS.) FUCKEL

Persoon’s descriptions are not unambiguous, however, it seems possible to me that P. sulphurea was the original description for T. violascens or allied species. It is also possible that the original description was wide and that it was defined more precisely by Persoon (1822: 250). For the purpose of typification, the syntypes do not conflict with the original description which says: ‘Sessilis, sparsa, cupula subglobosa, hirsuta sulphurea. Ad stip. herbarum.’ Following recommendation 9A.4 of the International Code of Nomenclature (McNeill et al. 2012), the specimen L 910,256-897 containing Trichopeziza sulphurea is chosen for a lectotype. Trichopeziza violascens was already segregated by Raitviir (1970) and Trichopeziza mollissima s. l. (including T. violascens) by Dennis (1962). Part of the specimen L 910,256-897 with immature apothecia, which are smaller, darker and diffusing in 4% KOH colour which penetrates to the medium is designated as the lectotype of Peziza sulphurea PERS. As the apothecia are immature, an epitype is selected. The specimen PRM 672828 is designated as the epitype of P. sulphurea PERS.:

L e c t o t y p e: part of the specimen L 910,256-897 (current number L 0111759), sine data, as Peziza sulphurea var., possessing smaller and darker apothecia, which diffuse in 4% KOH colour which penetrates to the medium (for location of the apothecia see Text-fig. 6, number 1), designated here.

E p i t y p e: the Czech Republic, Western Bohemia, Diana virgin forest near Rozvadov, on Urtica dioica, 15 September 1964, leg. F. Kotlaba, V. Jechová et Z. Pouzar, PRM 672828, as Dasyscyphus sulphureus, designated here.