Peyritschiella princeps (Thaxt.) I.I.Tav.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 292-293

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 ).

Figures

Fig. 69. Peyritschiella spp. A–C. P. princeps (Thaxt.) I.I.Tav. Mature thalli. In C arrows point to horizontal septa that divide the first two contiguous cells in the lower tier. – D. P. vulgata (Thaxt.) I.I.Tav. Mature thallus. Scale bars: 50 µm. Photographs from slides ZMUC C-F-122535 (A–B), ZMUC C-F-122536 (C), ZMUC C-F-123973 (D).