Compsomyces lestevae Thaxt.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 42-44

Compsomyces lestevae Thaxt.

MB#209523

Fig. 5A–B

Proceedings of the American Academy of Arts and Sciences 35: 439 ( Thaxter 1900, as lestevi). –

Type: [Not designated] [Ind. loc.] “ On Lesteva sicula Erich , British Museum, Nos. 452 and 453, Paisley and Red Hill, England. On abdomen and elytra”; FH.

Diagnostic features

Each row of perithecial outer wall cells consists of four unequal cells ( Fig. 5A , arrows). Primary appendage with a base consisting of 2–3 large and inflated cells, bearing a solitary, short antheridium in the uppermost of these cells ( Fig. 5A–B , an). [Detailed descriptions: Thaxter 1908; Majewski 1994b; Santamaria 2003]

Distribution and hosts

On Lesteva (= Lesta Blackwelder, 1952 ) (Col. Staphylinidae Omalinae) from Europe: France, Italy, Poland, Spain, Sweden, United Kingdom ( Santamaria et al. 1991), Belgium ( De Kesel & Gerstmans 2011), the Netherlands ( Haelewaters et al. 2012); and Africa: Algeria ( Maire 1916a).

Collections examined from Denmark

On Lesteva hanseni Lohse, 1953 (Col. Staphylinidae Omalinae)

DENMARK – Nordøstsjaelland (NEZ) • Eskemose ved Sydøstbredden af Sjaelsø ; 55°51.557′ N, 12°26.533′ E; UB49; 10 Apr. 2020; JP 1599; JP det.; ZMUC C-F-124357 .

On Lesteva pubescens Mannerheim, 1830 (Col. Staphylinidae Omalinae)

DENMARK – Østjylland (EJ) • Klostermølle ; 56°2.432′ N, 9°41.629′ E; NH41; 18 Jan. 2015; JP 455; JP det.; ZMUC C-F-122940 .

On Lesteva punctata Erichson, 1839 (Col. Staphylinidae Omalinae)

DENMARK – Nordøstsjaelland (NEZ) • Stampeskov ved Rådvad ; 55°48.332′ N, 12°33.138′ E; UB48; 14 Apr. 2013; JP 787; JP det.; ZMUC C-F-123282 .

On Lesteva sicula Erichson, 1840 (Col. Staphylinidae Omalinae)

DENMARK – Østjylland (EJ) • Klostermølle ; 56°2.432′ N, 9°41.629′ E; NH41; 18 Jan. 2015; JP 454; JP det.; ZMUC C-F-122939 • Vest for Ørnsø ved Silkeborg ; 56°9.126′ N, 9°30.588′ E; NH32; 10 Nov. 2018; JP 1228; JP det.; ZMUC C-F-123755 • Viemose ved Ringkloster ; 56°0.632′ N, 9°57.400′ E; NH50; 12 Mar. 2017; JP 533; JP det.; ZMUC C-F-123017 . – Nordøstsjaelland (NEZ) • Nord for Risø ; 55°42.184′ N, 12°6.692′ E; UB17; 14 Dec. 2013; R. Aagaard Jensen 620; JP det.; ZMUC C-F-123108 . – Nordvestjylland (NWJ) • Gammelgård på Fur ; 56°50.314′ N, 8°58.971′ E; MH99; 22 Nov. 2013; JP 420; JP det.; ZMUC C-F-122904 • Nord for Landting ved Vinderup ; 56°30.049′ N, 8°45.384′ E; MH86; 19 Jan. 2015; JP 556; JP det.; ZMUC C-F-123042 . – Nordvestsjaelland (NWZ) • Flasken nord for Reersø ; 55°31.965′ N, 11°9.831′ E; PG35; 26 Jan. 2014; JP 602; JP det.; ZMUC C-F-123091 . – Sydsjaelland (SZ) • Tryggevaelde Å ved Varpelev ; 55°21.055′ N, 12°15.877′ E; UB23; 6 Jan. 2018; JP 969; JP det.; ZMUC C-F-123476 .

Remarks

First record from Denmark. The new finding could easily be anticipated because Denmark is in the middle of other European countries where C. lestevae has already been reported.

Figures

Fig. 5. Compsomyces spp. A–B. C. lestevae Thaxt. A. Mature thallus showing antheridium (an) and perithecial wall cells (arrows). B. Immature thallus showing antheridium (an). – C–E. C. verticillatus (Thaxt.) Thaxt. C–D. Mature thalli. E. Detail of perithecium labelling eight wall cells (arrows). Scale bars: A–D = 50 µm; E = 20 µm. Photographs from slides ZMUC C-F-122939 (A–B), and ZMUC C-F- 124184 (C–E).