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 Siemaszkoa fennica Huldén MB#108513 Fig. 12A–E Karstenia 23: 63 ( Huldén 1983 ) . – Type : “Slide L. Huldén 25. On Ptenidium laevigatum Erichson ( Coleoptera , Ptiliidae ). Collecting data of the host: Finland . Ab : Uusikaupunki , leg. Söderman ( holotype )”; MZH . Diagnostic features Receptacle consisting of 8–12 superposed cells (cell I included). Appendage simple or sparsely branched (usually broken with age); the 2–4 lower cells are antheridia showing a short lateral efferent neck on their upper, inner corners ( Fig. 12D , arrows). Perithecium seems to be terminal on the receptacle axis. Perithecial apex asymmetric, showing a protruding lip. [Detailed descriptions: Majewski 1991 , 1994b ; Huggert 2010 ] Distribution and hosts Siemaszkoa fennica was described from Finland and later found in Poland ( Majewski 1991 ), United Kingdom (Weir 1996), Spain , Italy ( Santamaria & Rossi 1999 ), Sweden ( Huggert 2010 ), and the Netherlands (Haelewaters et al. 2014). It occurs on species of Ptenidium Erichson, 1845 (Col. Ptiliidae ). Collections examined from Denmark On Ptenidium intermedium Wankowiez, 1869 (Col. Ptiliidae ) DENMARK Østjylland (EJ) • Grejsdal syd for Hornstrup ; 55°44.791′ N , 9°33.051′ E ; NG37; 8 Mar. 2014 ; JP 754 ; JP det.; ZMUC C-F-123248 . – Fyn (F) • Kohaveskov ved Landkildegård ; 55°22.750′ N , 10°27.979′ E ; NG93; 21 Nov. 2013 ; JP 182 ; JP det.; ZMUC C-F-122661 Rishave ; 55°33.475′ N , 10°24.013′ E ; NG85; 19 Apr. 2018 ; JP 1065 ; JP det.; ZMUC C-F-123582 . – Sydsjaelland (SZ) • Storskov syd for Sparresholm ; 55°13.234′ N , 11°57.463′ E ; PG82; 17 Feb. 2019 ; JP 1392 ; JP det.; ZMUC C-F-123935 . On Ptenidium laevigatum Erichson, 1845 (Col. Ptiliidae ) DENMARK Sydjylland (SJ) Lakolk ; 55°8.325′ N , 8°29.618′ E ; MG61; 31 May 2013 ; JP 295 ; JP det.; ZMUC C-F-122774 Toftlund ; 55 ° 11.779′ N , 9 ° 3.837′ E ; NG01; 8 Mar. 2020 ; JP 1602 ; JP det.; ZMUC C-F-124358 . – Sydsjaelland (SZ) • Enemaerket ved Naesbyholm ; 55°22.429′ N , 11°36.776′ E ; PG63; 17 Nov. 2019 ; JP 1561 ; JP det.; ZMUC C-F-124321 Gammel Kalvehave ; 54°59.745′ N , 12°8.232′ E ; UA19; 23 Sep. 2018 ; JP 1178 ; JP det.; ZMUC C-F-123702 . Fig. 12. Siemaszkoa spp. A –E . S. fennica Huldén. A –B . Mature thalli. C . Unusual thallus with two perithecia. D . Detail of a mature thallus showing antheridia (arrows). E . Short thallus from legs. – F–I . S. flexa (T.Majewski) I.I.Tav. & T.Majewski. F –G . Mature thalli. H . Detail of foot. I . Detail of an immature thallus showing antheridia (arrows). Scale bars: A–C, E–G = 50 µm; D, H–I = 20 µm. Photographs from slides ZMUC C-F-122949 (A), ZMUC C-F-123248 (B), ZMUC C-F-123466 (C), ZMUC C-F-123309 (D), ZMUC C-F-123582 (E), ZMUC C-F-123632 (F–G), ZMUC C-F-123583 (H–I). On Ptenidium pusillum (Gyllenhal, 1808) (Col. Ptiliidae ) DENMARK Østjylland (EJ) • Almose i Fjeld Skov ; 56°24.698′ N , 10°27.948′ E ; NH95; 23 Nov. 2019 ; JP 1550 ; JP det.; ZMUC C-F-124311 Hald Ege ; 56°24.287′ N , 9°20.550′ E ; NH25; 19 Oct. 2013 ; JP 793 ; JP det.; ZMUC C-F-123288 Kjellerup ; 56°17.589′ N , 9°26.117′ E ; NH23; 21 Oct. 2017 ; JP 584 ; JP det.; ZMUC C-F-123070 ibid.; 56°17.614′ N , 9°26.106′ E ; NH23; 18 Nov. 2017 ; JP 815 ; JP det.; ZMUC C-F-123309 . – Lolland, Falster, Møn (LFM) • Busene Have syd for Busene ; 54°56.738′ N , 12°31.666′ E ; UA49; 8 Oct. 2017 ; JP 579 ; JP det.; ZMUC C-F-123065 Krenkerup Haveskov ; 54°46.408′ N , 11°39.955′ E ; PF77; 29 Nov. 2014 ; JP 464 ; JP det.; ZMUC C-F-122949 . – Nordøstsjaelland (NEZ) • Kalvehave i Gribskov ; 56°0.411′ N , 12°20.660′ E ; UC31; 23 Mar. 2019 ; JP 1430 ; JP det.; ZMUC C-F-123977 Klinten ved Selsø ; 55°44.158′ N , 11°59.634′ E ; PG88; 11 Mar. 2007 ; JP 517 ; JP det.; ZMUC C-F-123000 Skaerød ; 56°0.673′ N , 12°9.646′ E ; UC21; 14 Jan. 2018 ; JP 960 ; JP det.; ZMUC C-F-123466 Stampeskov ved Rådvad ; 55°48.332′ N , 12°33.138′ E ; UB48; 14 Apr. 2013 ; JP 791 ; JP det.; ZMUC C-F-123286 ibid.; 23 Mar. 2017 ; JP 465 ; JP det.; ZMUC C-F-122950 ibid.; 55°48.367′ N , 12°33.322′ E ; UB48; 24 Feb. 2019 ; JP 1345 ; JP det.; ZMUC C-F-123884 . – Nordvestsjaelland (NWZ) • Flasken nord for Reersø ; 55°31.965′ N , 11°9.831′ E ; PG35; 26 Jan. 2014 ; JP 601 ; JP det.; ZMUC C-F-123090 . – Sydjylland (SJ) Sølsted Mose ; 55°1.829′ N , 8°50.351′ E ; MF89; 2 Jun. 2013 ; JP 484 ; JP det.; ZMUC C-F-122968 . – Sydsjaelland (SZ) • Krobaek i Sjolte Skov ; 55°10.772′ N , 12°0.863′ E ; UB11; 17 Feb. 2019 ; JP 1376 ; JP det.; ZMUC C-F-123917 Holmegårds Mose ; 55°17.685′ N , 11°47.928′ E ; PG73; 31 Mar. 2019 ; JP 1422 ; JP det.; ZMUC C-F-123968 Sorø , Kristiansminde ; 55°25.115′ N , 11°35.209′ E ; PG64; 15 Aug. 2013 ; JP 395 ; JP det.; ZMUC C-F-122878 Villa Gallina i Hesede Skov ; 55°16.335′ N , 11°56.850′ E ; PG82; 8 Mar. 2015 ; JP 481 ; JP det.; ZMUC C-F-122965 . On Ptenidium turgidum Thomson, 1855 (Col. Ptiliidae ) DENMARK Østjylland (EJ) Kjellerup ; 56°17.282′ N , 9°26.197′ E ; NH23; 16 Oct. 2014 ; JP 322 ; JP det.; ZMUC C-F-122800 . Remarks First record from Denmark . Extremely reduced thalli with only two cells above cell I have been found growing on legs of its hosts ( Fig. 12E ). A photo of this species is given here for the first time.