Phaulomyces euaestheti (Thaxt.) I.I.Tav.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 66

Phaulomyces euaestheti (Thaxt.) I.I.Tav.

MB#105669

Fig. 11C

Mycologia Memoirs 9: 274 ( Tavares 1985). – Basionym: Corethromyces euaestheti Thaxt., Memoirs of the American Academy of Arts and Sciences 16: 196 ( Thaxter 1931, as euaesthetae) [MB#264284]. –

Type: “ On the abdomen of Euaesthetus americanus Er. , No. 1794, Sharon, Mass”; FH. [ USA]

Diagnostic features

Third cell of the receptacle elongate, about twice longer than broad. One or two perithecia for each thallus. Appendage consisting of a basal cell supporting a simple branch and 1–2 elongated flask-shaped antheridia. [Detailed description: Majewski 1994b]

Distribution and hosts

Described from USA, it has been also reported from Germany ( Scheloske 1969) and Poland ( Majewski 1994a). Infects species of the genus Euaesthetus Gravenhorst, 1806 (Col. Staphylinidae Euaesthetinae ).

Collections examined from Denmark

On Euaesthetus ruficapillus (Lacordaire, 1835) (Col. Staphylinidae Euaesthetinae ) DENMARK – Østjylland (EJ) • Viemose ved Ringkloster ; 56°0.632′ N, 9°57.400′ E; NH50; 12 Mar. 2017; JP 532; JP det.; ZMUC C-F-123016 . – Lolland, Falster, Møn (LFM) • Røgbølle Sø ved Sørup ; 54°42.608′ N, 11°34.757′ E; PF66; 15 Oct. 2019; JP 1521; JP det.; ZMUC C-F-124276 . – Nordøstsjaelland (NEZ) • Fruebjerg i Strøgårdsvang ; 55°58.539′ N, 12°16.659′ E; UC30; 18 Oct. 2018; JP 1220; JP det.; ZMUC C-F-123747 • Indelukket ved Frederiksborg Slot ; 55°56.191′ N, 12°17.861′ E; UC30; 12 Apr. 2016; JP 11; JP det.; ZMUC C-F-122483 , C-F-122484 • ibid.; 19 Mar. 2017; JP 674; JP det.; ZMUC C-F-123163 • Lyngen ved Ølstykke ; 55°47.738′ N, 12°10.253′ E; UB28; 15 May 2013; JP 866; JP det.; ZMUC C-F-123362 • Syd for Løjesø i Rude Skov ; 55°49.866′ N, 12°28.551′ E; UB49; 12 Apr. 2018; JP 1031; JP det.; ZMUC C-F-123543 • Ud for Kongelundsfortet ; 55°33.724′ N, 12°33.731′ E; UB46; 15 Apr. 2018; JP 1049; JP det.; ZMUC C-F-123565 . – Sydsjaelland (SZ) • Braenøre Mose ; 55°23.906′ N, 9°25.714′ E; NG23; 5 Aug. 2018; JP 1166; JP det.; ZMUC C-F-123691 • Denderup Sø i Denderup Vaenge ; 55°15.075′ N, 11°57.366′ E; PG82; 5 May 2016; JP 496; JP det.; ZMUC C-F-122980 • Holmegårds Mose ; 55°17.685′ N, 11°47.928′ E; PG73; 31 Mar. 2019; JP 1414; JP det.; ZMUC C-F-123960 .

Remarks

First record from Denmark. The position of the primary septum is not well understood. The first perithecium develops from the cell II but the second perithecium is born from the elongated 3 rd cell of the receptacle which, therefore, cannot be the cell III. Probably, cell III corresponds to the 4 th cell of the receptacle ( Fig. 11C , III?). A photo of this species is given here for the first time.

Figures

Fig. 11. A–B. Euphoriomyces unilateralis T.Majewski.A. Paired thalli. B. Thallus with two perithecia, the lower immature, the upper overmature. – C. Phaulomyces euaestheti (Thaxt.) I.I.Tav., mature thallus with two perithecia and with the probable cell III labelled (III?). – D–E. Phaulomyces octotemni (T.Majewski) I.I.Tav. D. Paired thalli. E. Five thalli with a labelled antheridium (an) on the right immature thallus. Scale bars: A–B = 20 µm; C–E = 50 µm. Photographs from slides ZMUC C-F-123798 (A–B), ZMUC C-F-122484 (C), ZMUC C-F-124330 (D), ZMUC C-F-124329 (E).