Laboulbenia slackensis Cépède & F.Picard

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 201-202

Laboulbenia slackensis Cépède & F.Picard

MB#239158

Fig. 43C–D

Compte Rendu, Association Française pour l’Avancement des Sciences (part 2): 780 ( Cépède & Picard 1907). – Type: [Type lost!] “ Pogonus chalceus Marsh. Bords de la Slack, Ambleteuse (Pas-de-Calais)”. [ France]

Diagnostic features

Cell V trapezoidal to obtriangular, similar in size and shape to cell IV. Septum IV–V vertical, connected with septum III–IV. Basal cell of outer appendage shorter than cell IV, slightly inflated outward and twice as long as the basal cell of inner appendage, separated from the outer branch by a thick, black and constricted septum ( Fig. 43D , arrow). Appendages, if undamaged, exceeding the tip of the perithecium. Dorsal side of the receptacle straight to slightly concave.[Detailed descriptions: Balazuc 1974e; De Kesel 1989; Majewski 1994b; Santamaria 1998]

Distribution and hosts

Occurs on the genus Pogonus (Col. Carabidae ) from Europe: Belgium, France, Germany, Greece, Italy, Poland, Spain ( Santamaria et al. 1991), the Netherlands ( Meijer 1975), and United Kingdom (Weir 1996); Africa: Morocco ( Maire 1916a), Algeria ( Maire 1920), and Comores (Balazuc 1982); and Asia: Japan ( Terada 1998a).

Collections examined from Denmark

On Pogonus chalceus (Marsham, 1802) (Col. Carabidae ) DENMARK – Fyn (F) • Ristinge ; 54°49.793′ N, 10°38.242′ E; PF07; ca 1870; Schiødte Dry0153; Schiødte det.; ZMUC C-F-124219 . – Sydjylland (SJ) • Råhede ; 55°16.263′ N, 8°39.392′ E; MG72; 31 May 2013; JP 154; JP det.; ZMUC C-F-122634 .

Remarks

First record from Denmark. Sister species of L. littoralis which occurs on Cafius (Col. Staphylinidae ). Both species were distinguished by biometric, morphological and ecological characteristics by De Kesel & Haelewaters (2014a).

Figures

Fig. 43. Laboulbenia spp. A–B. L. rougetii Mont. & C.P.Robin. A. Mature thallus. B. Two young thalli showing antheridia (an). – C–D. L. slackensis Cépède & F.Picard. In D, the black and constricted septum separating the basal cell of outer appendage from outermost branch is labelled (arrow). – E–F. L. sphaerii Santam. E. A pair of two immature thalli. F. Mature thallus from holotype. Both images with undivided cells III and IV being labelled. Scale bars: 50 µm. Photographs from slides ZMUC C-F-124117 (A–B), ZMUC C-F-124219 (C), ZMUC C-F-122634 (D), ZMUC C-F-124098 (E), BCB SS1047b (holotype) (F).