Cantharomyces platystethi Thaxt.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 322-323

Cantharomyces platystethi Thaxt.

MB#175399

Fig. 77G

Proceedings of the American Academy of Arts and Sciences 35: 415 ( Thaxter 1900). –

Type: “ On abdomen of Platystethus cornutus Grav. , British Museum, No. 449, Kilburn , England ”; FH. [United Kingdom]

Diagnostic features

Cells III and the first two of the appendage form a divergent axis in relation to the perithecium and its stalk. Appendage basal cell longer than broad, including in the middle a small, lateral, lens-shaped, antheridium, which doesn’t contact with upper and lower septa ( Fig. 77G , an). Appendage branched above its second cell. [Detailed descriptions: Thaxter 1908; Santamaria 2003]

Distribution and hosts

Cantharomyces platystethi occurs on different species of Platystethus (Col. Staphylinidae Oxytelinae ) from United Kingdom (type), Morocco ( Maire & Werner 1937), Japan ( Terada 1977), Spain ( Santamaria & Girbal 1987), India ( Kaur & Mukerji 1996a), China ( Zhang et al. 2001), Sweden ( Huggert 2010), Turkey ( Rossi 2016), and Belgium ( De Kesel et al. 2020).

Collections examined from Denmark

On Platystethus cornutus (Gravenhorst, 1802) (Col. Staphylinidae Oxytelinae ) DENMARK – Lolland, Falster, Møn (LFM) • Riserup ; 54°53.732′ N, 11°49.746′ E; PF88; 2 Aug. 1872; coll. unknown Dry0115; det. unknown; ZMUC C-F-124182 .

On Platystethus nodifrons Mannerheim, 1830 (Col. Staphylinidae Oxytelinae ) DENMARK – Nordøstjylland (NEJ) • Vendsyssel ; no coordinates; Jun. 1872; coll. unknown DrY0116; det. unknown; ZMUC C-F-124183 .

Remarks

First record from Denmark. The Danish thalli are in poor condition although perfectly identifiable; the samples come from two dried beetles from two very old Museum collections (year 1872).

Figures

Fig. 77. Cantharomyces spp. A–C. C. numidicus Maire. A, C. Mature thalli. B. Appendage basal cell in detail. – D–F. C. orientalis Speg. Mature thalli. – G. C. platystethi Thaxt. Mature thallus with labelled antheridium (an). Scale bars: 50 µm. Photographs from slides ZMUC C-F-122850 (A), ZMUC C-F- 122935 (B–C), ZMUC C-F-122482 (D), ZMUC C-F-122831 (E), ZMUC C-F-123217 (F), ZMUC C-F- 124182 (G).