Diphymyces niger (T.Majewski) I.I.Tav.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 234-235

Diphymyces niger (T.Majewski) I.I.Tav.

MB#105264

Fig. 52A–B

Mycologia Memoirs 9: 203 ( Tavares 1985). – Basionym: Corethromyces niger T.Majewski, Acta Mycologica 9(1): 114 ( Majewski 1973a) [MB#311808]. –

Type: “ On Ptomaphagus sericatus (Chaud.) (Col. Catopidae ): Ojców near Kraków Saspowska valley , 8.6.1971, leg. A. Kosior ( TM. 919 – holotype)”; KRAM. [ Poland]

Laboulbenia ptomaphagi Huggert ( Huggert 1973: 249) [MB#316150]

Diagnostic features

Thallus stocky, up to 80–90 µm long; entirely dark brown with the exception of paler appendage and cell I. Appendage profusely branched. Perithecial tip bearing one stout, tooth-like prominence ( Fig. 52B , arrow). [Detailed descriptions: Majewski 1994b; Santamaria 2003]

Distribution and hosts

On members of the genus Ptomaphagus (Col. Leiodidae ) from Poland, France, Spain, United Kingdom, Czech Republic, Russia, Finland, Denmark, Sweden ( Majewski 2008), Italy ( Balazuc 1973b), Bulgaria and Slovenia ( Rossi et al. 2019a).

Collections examined from Denmark

On Ptomaphagus sericatus (Chaudoir, 1845) (Col. Leiodidae ) DENMARK – Lolland, Falster, Møn (LFM) • Møns Klint, Syd ; 54°56.985′ N, 12°32.270′ E; UA49; 3 Aug. 2019; JP 1489; JP det.; ZMUC C-F-124075 .

On Ptomaphagus subvillosus (Goeze, 1777) (Col. Leiodidae ) DENMARK – Sydsjaelland (SZ) • Østerskov ved Langebaek ; 54°59.572′ N, 12°6.715′ E; UA19; 3 Jan. 2019; JP 1294; JP det.; ZMUC C-F-123826 .

Remarks

The recently collected specimens confirm the previous record from Denmark ( Huggert 1973).

Figures

Fig. 52. A–B. Diphymyces niger (T.Majewski) I.I.Tav. Mature thalli. Some cells are labelled in B, as I, II, III and VI, as well as the stout, tooth-like prominence, on the perithecial tip (arrow). – C–G. Dipodomyces phloeocharidis T.Majewski.C. Mature thallus showing cells I, II, III, the primary septum (a), and the main axis of the primary appendage consisting of three superposed cells (*). D. Mature thallus. E. Reduced male thallus with apparently two functional antheridia. F–G. Immature thalli showing the original spore apex as a spinous process (sx) and trichogyne (tr). – H–I. DistolomYces forficulae (T.Majewski) I.I.Tav. Mature thalli. Scale bars: A–D, F–H = 50 µm; E, I = 25 µm. Photographs from slides ZMUC C-F-123826 (A), ZMUC C-F-124075 (B), ZMUC C-F-122514 (C–G), ZMUC C-F-124076 (H–I).