Laboulbeniomycetes (Fungi, Ascomycota) of Denmark Author Santamaria, Sergi Unitat de Botànica, Departament de Biologia Animal, de Biologia Vegetal i d’Ecologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès (Barcelona), Spain. sergi.santamaria@uab.cat Author Pedersen, Jan Natural History Museum of Denmark (Zoological Museum), University of Copenhagen, Universitetsparken 15, 2100 København Ø, Denmark. japedersen@snm.ku.dk text European Journal of Taxonomy 2021 2021-11-26 781 1 425 http://dx.doi.org/10.5852/ejt.2021.781.1583 journal article 10.5852/ejt.2021.781.1583 2118-9773 5828924 Peyritschiella princeps (Thaxt.) I.I.Tav. MB#105655 Fig. 69A–C Mycologia Memoirs 9: 269 ( Tavares 1985 ) . – Basionym : Dichomyces princeps Thaxt., Proceedings of the American Academy of Arts and Sciences 30: 479 ( Thaxter 1895 ) [MB#146013]. – Type : “ On Philonthus sordidus Grav. Massachusetts ”; FH . [ USA ] Diagnostic features Thallus symmetrical, up to 350 µm long, with middle and upper tiers of cells of similar width. Uniformly yellowish-brown, sometimes slightly darkened at the margins of the lower tier of cells. Two perithecia for each thallus, on the upper tier; auricles absent. [Detailed descriptions: Thaxter 1896 ; Sugiyama 1972 ; Santamaria 1989 ; Majewski 1994b ] Distribution and hosts Peyritschiella princeps is known from Europe ( Belgium , Finland , France , Germany , the Netherlands , Italy , Poland , Spain ), Africa ( Algeria , Sierra Leone ), Madeira, America ( Argentina , Mexico , Peru , USA ), Asia ( India , Korea ), and Australia ( Santamaria et al. 1991 ). Also from Czech Republic ( Rossi & Máca 2006 ), Sweden ( Huggert 2010 ), and Indonesia ( Haelewaters & Yaakop 2014 ). It occurs on species of the genus Philonthus and related genera like Spatulonthus , Quediomacrus Sharp, 1884 and Bisnius (Col. Staphylinidae Staphylininae ). Collections examined from Denmark On Bisnius cephalotes (Gravenhorst, 1802) (Col. Staphylinidae Staphylininae ) DENMARK Østjylland (EJ) Hampen Plantage ; 56°1.561′ N , 9°22.546′ E ; NH20; 6 Oct. 2019 ; JP 1525 ; JP det.; ZMUC C-F-124280 Kjellerup ; 56°17.644′ N , 9°25.850′ E ; NH23; 18 Nov. 2017 ; JP 821 ; JP det.; ZMUC C-F-123315 . – Sydjylland (SJ) Havnen i Åbenrå ; 55°2.479′ N , 9°25.429′ E ; NF29; 27 Sep. 2009 ; JP 60 ; JP det.; ZMUC C-F-122535 . On Bisnius parcus (Sharp, 1874) (Col. Staphylinidae Staphylininae ) DENMARK Sydjylland (SJ) Havnen i Åbenrå ; 55°2.479′ N , 9°25.429′ E ; NF29; 27 Sep. 2009 ; JP 61 ; JP det.; ZMUC C-F-122536 . On Bisnius sordidus (Gravenhorst, 1802) (Col. Staphylinidae Staphylininae ) DENMARK Nordøstsjaelland (NEZ) Bispebjerg ; 55°43.063′ N , 12°31.288′ E ; UB47; 3 Nov. 2019 ; JP 1542 ; JP det.; ZMUC C-F-124302 . On Bisnius subuliformis (Gravenhorst, 1802) (Col. Staphylinidae Staphylininae ) DENMARK Sydjylland (SJ) Havnen i Åbenrå ; 55°2.479′ N , 9°25.429′ E ; NF29; 27 Sep. 2009 ; JP 63 ; JP det.; ZMUC C-F-122540 . On Philonthus politus (Linnaeus, 1758) (Col. Staphylinidae Staphylininae ) DENMARK Nordøstsjaelland (NEZ) Husum ; 55°42.851′ N , 12°29.061′ E ; UB47; 6 Oct. 2018 ; JP 1200 ; JP det.; ZMUC C-F-123726 . Remarks First record from Denmark . Only slightly variable regarding the darkening of the lower tier of cells, from totally pale ( Fig. 69C ) to darker ( Fig. 69B ), through intermediate forms ( Fig. 69A ).