Dioicomyces anthici Thaxt.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 280-281

Dioicomyces anthici Thaxt.

MB#248070

Fig. 66A–E

Proceedings of the American Academy of Arts and Sciences 37: 33 ( Thaxter 1901b). –

Type: “ USA: Fresh Pond, Cambridge (Mass.), on Anthicus floralis, Oct. 1900 ”; FH [ FH–3488 ] [lectotype designed by Santamaria 2002: 619]

Dioicomyces formicillae Thaxt. ( Thaxter 1912a: 169, as D. formicellae ) [MB#149873]

Dioicomyces angularis Thaxt. ( Thaxter 1912a: 171) [MB#236037]

Dioicomyces falcatus Speg. ( Spegazzini 1917: 522) [MB#246417]

Dioicomyces infuscatus Speg. ( Spegazzini 1917: 526) [MB#149845]

Dioicomyces pallidus Speg. ( Spegazzini 1917: 527) [MB#240603]

Dioicomyces refractus Speg. ( Spegazzini 1917: 528) [MB#240387]

Dioicomyces uncinatus Speg. ( Spegazzini 1917: 532) [MB#240872]

Dioicomyces guatemalensis Thaxt. ( Thaxter 1931: 64) [MB#266608]

Diagnostic features

Female thalli with conical or elongate-oblong primary appendage, having a ± pointed and inwardly curved apex. Perithecium ovoid, showing one strongly convex side whereas the opposite side is straight to slightly concave. [Detailed descriptions: Thaxter 1908; Majewski 1994b; Santamaria 2002; Santamaria 2003]

Distribution and hosts

Widespread and known from all continents except Oceania. Occurs on Anthicus Paykull, 1798 and allied genera (Col. Anthicidae ) ( Santamaria 2002; Majewski 2008; Bernardi et al. 2014). Also in Korea ( Lee et al. 2011).

Collections examined from Denmark

On Omonadus formicarius (Goeze, 1777) (Col. Anthicidae ) DENMARK – Østjylland (EJ) • Høgdal ; 56°6.449′ N, 9°36.941′ E; NH31; 28 Jan. 1990; V. Mahler Dry0041; V. Mahler det.; ZMUC C-F-124107 . – Nordøstsjaelland (NEZ) • Amager ; 55°37.023′ N, 12°36.367′ E; 26 Sep. 1920; V. Hansen Dry0037; V. Hansen det.; ZMUC C-F-124103 • Jaegerspris Nordskov ; 55°54.438′ N, 11°58.702′ E; PH80; 19 Aug. 1965; F. Bangsholt Dry0040; F. Bangsholt det.; ZMUC C-F-124106 • Ledøje ; 55°42.571′ N, 12°17.695′ E; UB37; 19 Aug. 2018; JP 1172; JP det.; ZMUC C-F-123697 • Østerlide ; 55°49.832′ N, 12°29.432′ E; UB49; 25 Aug. 1945; Johs. Petersen Dry0039; Johs. Petersen; ZMUC C-F-124105 • Skaerød ; 56°0.673′ N, 12°9.646′ E; UC21; 14 Jan. 2018; JP 957; JP det.; ZMUC C-F-123463 . – Sydjylland (SJ) • Havnen i Åbenrå; 55°2.479′ N, 9°25.429′ E; NF29; 27 Sep. 2009; JP 62; JP det.; ZMUC C-F-122537 , C-F-122538 , C-F-122539 . – Sydsjaelland (SZ) • Naestved ; 55°13.968′ N, 11°45.755′ E; PG72; 10 Jul. 1922; Høeg Dry0038; Høeg det.; ZMUC C-F-124104 .

Remarks

First record from Denmark. This is a very variable species, with numerous variations connected to one another through an inseparable mess of intermediate forms ( Santamaria 2002). The absence of protuberances on the perithecial body and of outgrowths near or at the perithecial apex is a first clue to classify this perhaps collective species.

Figures

Fig. 66. Dioicomyces spp. A–E. D. anthici Thaxt. A–C. Mature female thalli. In A, cells I, II and III are labelled. D–E. Male thalli. – F–I. D. myrmecophilus T.Majewski. F–H. Mature female thalli showing a finger-like perithecial outgrowth in G (arrow), and a blunt prominence near the perithecial tip in H (arrow). I. Male thallus. Scale bars: A–H = 50 µm; I = 25 µm. Photographs from slides ZMUC C-F-123463 (A–B, D–E), ZMUC C-F-122537 (C), ZMUC C-F-122601 (F–I).