Siemaszkoa fennica Huldén

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 68-70

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 .

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.

Figures

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).