Thripomyces italicus Speg.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 34

Thripomyces italicus Speg.

MB#235252

Fig. 3F

Anales del Museo Nacional de Historia Natural de Buenos Aires 27: 72 ( Spegazzini 1915b). –

Type: “Frecuente sobre el pecho entre las bases de las patas de una especie indeterminada de Hydraena , común en las zanjas cerca de Conegliano. Julio y Nov. 1913 ”; LPS. [ Italy]

Diagnostic features

Receptacle base consisting of 4–6 short, flat and broad cells ( Fig. 3F , *). Thallus length up to 640 µm. Perithecium with a slender and acute apex. [Detailed description: Thaxter 1931]

Distribution and hosts

Only known from the type in Italy and from Spain ( Santamaria 1993a), infecting Hydraena Kugelann, 1794 (Col. Hydraenidae ).

Collections examined from Denmark

On Hydraena riparia Kugelann, 1794 (Col. Hydraenidae )

DENMARK – Sydsjaelland (SZ) • Denderup Sø i Denderup Vaenge ; 55°15.075′ N, 11°57.366′ E; PG82; 5 May 2016; JP 499; JP det.; ZMUC C-F-122983 .

Remarks

First record from Denmark. Probably this species is more common than suggested by the scarce number of available records. Perhaps overlooked because of the unusual shape of the thalli which look like tissue strands, an aspect very infrequent in Laboulbeniales .

Figures

Fig. 3. A. Eusynaptomyces enochri Scheloske; reduced form showing the lateral outgrowth (arrow). – B–D. Eusynaptomyces hydrobii (T.Majewski) I.I.Tav.; mature thalli. – E. Rhynchophoromyces anacaenae Scheloske; mature thallus with broken appendage. –F. Thripomyces italicus Speg.; mature thallus showing the characteristic broadened cells at the base of the receptacle (*). Scale bars: 50 µm. Photographs from slides ZMUC C-F-122569 (A), ZMUC C-F-123552 (B–D), ZMUC C-F-123749 (E), and ZMUC C-F- 122983 (F).