Laboulbenia manubriolata Thaxt.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 176

Laboulbenia manubriolata Thaxt.

MB#190687

Figs 37A–B , 105A

Proceedings of the American Academy of Arts and Sciences 51: 44 ( Thaxter 1915). –

Type: “On various parts of a small Carabid allied to Tachys . No. 2081d (Type) on elytra. Samarang. Java ”; FH.

Diagnostic features

Cell II and upper part of cell I tuberculate ( Fig. 37A ). Cell V obtriangular, twice as long as cell IV, not connected with cell III. Outer appendage unbranched, with the basal cell forming a distinctive blunt outgrowth on its outer margin ( Fig. 37A–B , arrows). Inner appendage consisting of 2–3 once divided branches arising directly from the basal cell and terminated by solitary antheridia which in overmature thalli degenerate to develop sterile, variably elongated branches. [Detailed descriptions: Santamaria 1998; Majewski 2006]

Distribution and hosts

On Perigona nigriceps (Col. Carabidae ) (sometimes as Tachys in old literature), an invasive ground beetle introduced by timber trade in Europe: Finland ( Huldén 1983), Portugal ( Santamaria 1998), United Kingdom (Weir 1996), and Poland ( Majewski 2006); Asia: Sri Lanka, Indonesia ( Thaxter 1915), China ( Rossi 1982b), Korea ( Lee 1986), Japan ( Terada 2000), Taiwan ( Terada et al. 2004), Thailand ( Rossi & Bernardi 2018), and Cambodia ( Kong et al. 2020).

Collections examined from Denmark

On Perigona nigriceps (Dejean, 1831) (Col. Carabidae ) DENMARK – Østjylland (EJ) • Kjellerup ; 56°17.644′ N, 9°25.850′ E; NH23; 18 Nov. 2017; JP 824; JP det.; ZMUC C-F-123318 . – Nordøstsjaelland (NEZ) • Naerum ; 55°48.616′ N, 12°32.706′ E; UB48; 13 Nov. 2016; JP 127; JP det.; ZMUC C-F-122604 • ibid.; 23 Mar. 2017; JP 238; JP det.; ZMUC C-F-122718 .

Remarks

First record from Denmark.

Figures

Fig. 37. Laboulbenia spp. A–B. L. manubriolata Thaxt. Mature thalli with labelled outgrowth on basal cell of outer appendage (arrows). –C–D. L. melanaria Thaxt. Mature thalli. – E–I. L. metableti Scheloske. E–G. Mature thalli with protuberant cell VII labelled with arrows in E and G. H–I. Inner appendage in detail with two focus levels, near in H, far in I; “bc ia” is the basal cell of inner appendage, “an” is an antheridium. Scale bars: 50 µm. Photographs from slides ZMUC C-F-122604 (A–B), ZMUC C-F-124124 (C–D), ZMUC C-F-123103 (E), ZMUC C-F-123072 (F), ZMUC C-F-123384 (G), ZMUC C-F-122626 (H–I).

Fig. 105. Habitus of hosts with fungi. Some thalli are zoomed in, and others are encircled. A. Perigona nigriceps with thalli of Laboulbenia manubriolata on dorsal side of the elytra. B. Brachygluta fossulata with a few thalli of Cryptandromyces elegans on the apex of the abdominal segments, on the hind coxa and the tip of the left hind tibia. C. Lathrobium brunnipes with thalli of Rhadinomyces pallidus on various parts of the body. Scale bars: 1 mm. (Photos: Aslak Kappel Hansen).