Laboulbeniomycetes (Fungi, Ascomycota) of Denmark Santamaria, Sergi Pedersen, Jan European Journal of Taxonomy 2021 2021-11-26 781 1 425 4X9V2 T. Majewski [582,1006,1634,1661] Laboulbeniomycetes Laboulbeniaceae Siemaszkoa Fungi Laboulbeniales 71 72 Ascomycota species ramificans  MB#363463  Fig. 13D–G    Polish Botanical Studies2: 224 ( Majewski 1991). –    Type: “ On  Ptenidium turgidumThomson. Bt. Bialowieza National Park, sect. 256,  18.6.1989( 4489– holotype)”; KRAM. [ Poland]    Diagnostic features Receptacle consisting of (4–)5–6 superposed cells (cell I included). Appendage ramified into several branches above 2 nd–5 thcell; some of the branches bear narrowly elongated, flask-shaped antheridia ( Fig. 13E–F, arrows). Cells of the base of the appendage typically inflated ( Fig. 13D, *). Perithecium appears to be terminal on the receptacle axis. Perithecial apex asymmetric, with a protruding lip. [Detailed description: Majewski 1994b]    Distribution and hosts Only known from Poland( type) on species of the genus  Ptenidium(Col. Ptiliidae).    Collections examined from Denmark  On  Ptenidium turgidumThomson, 1855(Col. Ptiliidae)   DENMARK–  Nordøstjylland(NEJ)• Vesterskoveni Tofte Skov; 56°50.346′ N, 10°13.361′ E; NJ70;  7 Aug. 2013;  JP318; JPdet.; ZMUC C-F-122797. –   Nordøstsjaelland(NEZ)• Stampeskovved Rådvad; 55°48.367′ N, 12°33.322′ E; UB48;  23 Mar. 2017;  JP239; JPdet.; ZMUC C-F-122719. –   Sydsjaelland(SZ)• Enemaerketved Naesbyholm; 55°22.429′ N, 11°36.776′ E; PG63;  17 Nov. 2019;  JP1562; JPdet.; ZMUC C-F-124322.    Remarks First record from Denmarkand first since it was originally described. Unusual short thalli have been collected under the head of one host specimen, and we have decided to assign them to  S. ramificansbecause of characters of the perithecial apex and the base of the appendage ( Fig. 13D). A photo of this species is given here for the first time. 4988641539 On Ptenidium turgidum Thomson. 1989-06-18 KRAM Poland Bt. Bialowieza National Park 71 72 4489 1 holotype 4988641051 2013-08-07 NEJ JP Denmark JP 56.8391 Tofte Skov 1 10.222683 Vesterskoven 73 74 ZMUC C-F-122797 1 Nordostjylland 4988642241 2017-03-23 JP Denmark JP 55.806118 Radvad 1 12.5553665 Stampeskov 73 74 ZMUC C-F-122719 1 Nordostsjaelland 4988640603 2019-11-17 ZMUC JP Denmark JP 55.373817 Naesbyholm 1 11.612933 Enemaerket 73 74 ZMUC C-F-124322 1 Sydsjaelland