Euphoriomyces magnicellulatus Santam.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 61

Euphoriomyces magnicellulatus Santam.

MB#128408

Fig. 10A

Revista Iberoamericana de Micología 8: 48 (Santamaria 1991). –

Type: “ España. Girona: Riells i Viabrea , 16-I-88, DG62, leg. S. Santamaría, sobre los élitros y pronoto de Hydnobius multistriatus Gyll. [SS777a] (Holotypus)”; FH.

Diagnostic features

Receptacle consisting of 6–9 superposed cells. All cells flattened except for the upper cell of the receptacle which is rectangular, twice or more times as long as broad, and laterally bears the perithecium ( Fig. 10A , *). All cells of the receptacle, except for cell I and 1–2 cells above, dividing bilaterally to form secondary appendages, some of them giving rise to terminal, short antheridia. Cell VI triangular in section, forming an oblique base for the perithecium. [Detailed descriptions: Santamaria 2003; Majewski 2006]

Distribution and hosts

Only known from Spain (type), Poland ( Majewski 2006), and Bulgaria ( Rossi et al. 2019a), typically on Hydnobius , but also reported on Leiodes (Col. Leiodidae ).

Collections examined from Denmark

On Hydnobius multistriatus (Gyllenhal, 1813) (Col. Leiodidae )

DENMARK – Østjylland (EJ) • Hestehave ; 56°17.015′ N, 10°28.162′ E; NH93; 6 Sep. 1922; V. Hansen DrY0066; V. Hansen det.; ZMUC C-F-124132 • Silistria ; 56°7.023′ N, 10°13.638′ E; NH72; 5 Sep. 1922; V. Hansen DrY0067; V. Hansen det.; ZMUC C-F-124133 .

On Hydnobius punctatus (Sturm, 1807) (Col. Leiodidae )

DENMARK – Nordøstjylland (NEJ) • Hvorup, Nørresundby ; 57°5.130′ N, 9°55.659′ E; NJ52; Sep. 1891; J.P. Johansen DrY0065; J.P. Johansen det.; ZMUC C-F-124131 .

Remarks

First record from Denmark. The distribution of this species is patchy, from Southern to Northern Europe, probably by lack of exploration, but the record from Denmark is not surprising because of its previous record from neighbouring Poland.

Figures

Fig. 10. Euphoriomyces spp. A. E. magnicellulatus Santam. Paired mature thalli, with elongated cell of receptacle (*). – B–F. E. smicri Santam. sp. nov. B–C. Immature thalli showing antheridia (arrows), primary appendage (pa), primary septum (a), and uppermost receptacular axial cell (*). D. Mature thallus showing cells VII, probably m (m?) and trichogyne stump (ts). E. Detail of the perithecial apex from F, with trichogyne stump (ts). F. Mature thallus with a labelled perithecial initial (arrow). Scale bars: A = 50 µm; B–D, F = 20 µm; E = 10 µm. Photographs from slides ZMUC C-F-124132 (A), and ZMUC C-F-122821 (holotype) (B–F).