Euphoriomyces octotemni T.Majewski, Acta Mycologica 9(2): 232 ( Majewski 1973c Laboulbeniomycetes (Fungi, Ascomycota) of Denmark Santamaria, Sergi Pedersen, Jan European Journal of Taxonomy 2021 2021-11-26 781 1 425 4FXCZ (T. Majewski) I. I. Tav. [522,1066,264,292] Laboulbeniomycetes Laboulbeniaceae Phaulomyces Fungi Laboulbeniales 66 67 Ascomycota species octotemni  MB#105670  Fig. 11D–E    Mycologia Memoirs9: 273 ( Tavares 1985). – Basionym:    Euphoriomyces octotemniT.Majewski, Acta Mycologica9(2): 232 ( Majewski 1973c) [MB#313989]. –    Type: “ On  Octotemnus glabriculusGyll.(Col., Cisidae): Berezki, Ustrzyki Dolnecounty (Bieszczady Mts.), in small polypores on lying trunks of trees in a beech wood on the right bank of Wolosatystream (  650 m),  12.9.1972leg. T. Majewski( TM. … 1040– holotype)”; KRAM. [Host family is a Ciidae, not Cisidae]    Diagnostic features Third cell of the receptacle ± isodiametric, sometimes slightly flattened. One, more rarely two, perithecia for each thallus; bent towards the appendage.Appendage very elongate if undamaged, up to 250 µm long, 3–4 times as long as thalli. [Detailed description: Majewski 1994b]    Distribution and hosts Only known on the species typehost from Poland( type) and Spain( Santamaria 1995b).    Collections examined from Denmark  On  Octotemnus glabriculus(Gyllenhal, 1827)(Col. Ciidae)   DENMARK–  Østjylland(EJ)• Almose i Fjeld Skov; 56°24.698′ N, 10°27.948′ E; NH95;  23 Nov. 2019;  JP1569; JPdet.; ZMUC C-F-124329, C-F-124330. –   Lolland, Falster, Møn(LFM)• Keldskov; 54°39.977′ N, 11°33.286′ E; PF66;  15 Oct. 2019;  JP1515; JPdet.; ZMUC C-F-124270. –   Nordøstsjaelland(NEZ)• Hørsholm Arboret; 55°52.017′ N, 12°30.373′ E; UB49;  13 Nov. 2019;  JP1544; JPdet.; ZMUC C-F-124304, C-F-124305.    Remarks First record from Denmark. Although the host is common and widespread in Denmark, the fungus seems to be quite rare. Exactly as occurs with  P. euaesthetithere are problems with understanding where the primary septum is located. The successive formation of first and second perithecia if any, is driven likewise in both species. According to literature, antheridia are unknown in  P. octotemni. Nevertheless at least in one of the studied immature thalli we suspect the presence of one flask-shaped antheridium on the first cell of the appendage ( Fig. 11E, an), similarly to described for  P. euaestheti. 4988641134 On Octotemnus glabriculus Gyll. 1972-12-09 KRAM T. Majewski Ustrzyki Dolne 650 Wolosaty 66 67 TM. … 1040 1 Berezki holotype 4988640726 2019-11-23 JP Denmark JP 56.411633 Fjeld Skov 1 10.4658 Almose 66 67 ZMUC C-F-124329, ZMUC C-F-124330 1 Ostjylland 4988641636 2019-10-15 JP Denmark JP 54.666283 Keldskov 1 11.554767 66 67 ZMUC C-F-124270 1 Lolland, Falster, Mon 4988640887 2019-11-13 JP Denmark JP 55.86695 Horsholm Arboret 1 12.506217 66 67 ZMUC C-F-124304, ZMUC C-F-124305 1 Nordostsjaelland