Laboulbenia thaxteri Cépède & F.Picard

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 208-209

Laboulbenia thaxteri Cépède & F.Picard

MB#142449

Fig. 44H–I

Bulletin Scientifique de la France et de la Belgique 42: 260 ( Cépède & Picard 1908). – Type: [Type lost?!] “ TachYpus flavipes L., surtout sur le dessus du corps. Andrésy (Seine-et-Marne), collection Surcouf ”. [ France]

Diagnostic features

Cell V obtriangular, large, half of the length of cell IV, not connected with cell III. Outer appendage unbranched, with the lower cells inflated, and separated with somewhat dark and constricted septa. Inner appendage unbranched, consisting of three cells, the basal, the suprabasal, and a terminal large antheridium. Basal cell of inner appendage much smaller than basal cell of outer appendage. [Detailed descriptions: Bechet & Bechet 1984; Majewski 1994b; Santamaria 1998]

Distribution and hosts

Occurs on Asaphidion (= Tachypus Stephens, 1828 ) (Col. Carabidae ) from Europe: Spain, France, United Kingdom, Belgium, Italy, Switzerland, Austria, Poland, Greece, Romania, Latvia, Lithuania ( Majewski 2008), Russia ( Huldén 1985), Denmark ( Høier 2009), Sweden ( Huggert 2010), and Bulgaria ( Rossi et al. 2019a); and from Northern Africa: Algeria ( Maire 1920).

Collections examined from Denmark

On Asaphidion curtum (Heyden, 1870) (Col. Carabidae ) DENMARK – Lolland, Falster, Møn (LFM) • Krenkerup Haveskov ; 54°46.408′ N, 11°39.955′ E; PF77; 12 May 1993; S. Langemark & O.E. Meyer 102; JP det.; ZMUC C-F-122577 • ibid.; S. Langemark & O.E. Meyer 902; JP det.; ZMUC C-F-123400 • ibid.; 7 Jun. 1993; S. Langemark & O.E. Meyer 897; JP det.; ZMUC C-F-123395 • ibid.; 28 Jul. 1993; S. Langemark & O.E. Meyer 920; JP det.; ZMUC C-F-123418 . – Nordøstsjaelland (NEZ) • Stenholtsvang ; 55°57.439′ N, 12°21.204′ E; UC30; 28 Oct. 2017; JP 614; JP det.; ZMUC C-F-123102 .

Remarks

First record from Denmark. Its presence in Denmark is not surprising considering its existence in neighbouring countries.

Figures

Fig. 44. Laboulbenia spp. A–E. L. stenolophi Speg. Mature thalli except fig. D which represents a detail of the inner appendage. A and C show the perithecial ventral prominence formed by the junction of outer wall cell tiers w1 and w2 (arrows). B. Cell IV subdivision is shown (arrow). A–B. From Stenolophus mixtus. C. From Stenolophus teutonus. D–E. From Acupalpus flavicollis. – F–G. L. stilicicola Speg. F. Mature thallus. G. Upper part of an immature thallus showing an elongate trichogyne (tr). – H–I. L. thaxteri Cépède & F.Picard. Mature thalli. Scale bars: A–C, E–I = 50 µm; D = 25 µm. Photographs from slides ZMUC C-F-122606 (A), ZMUC C-F-123150 (B), ZMUC C-F-122707 (C), ZMUC C-F-122974 (D–E), ZMUC C-F-123727 (F–G), ZMUC C-F-123102 (H–I).