Tavaresiella hebri T.Majewski

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 276-278

Tavaresiella hebri T.Majewski

MB#112656

Fig. 65A–B

Acta Mycologica 16: 148 ( Majewski 1981). –

Type: “ On Hebrus ruficeps Thoms. (Heteroptera, Hebridae ): Dlugie near Izbica Kujawska (Wloclawek voivodeship), muddy borders of shallow ditches at a meadow on the Northern end of Dlugie Lake, 22.5.1976, leg. T. Majewski (… 1590 – holotype …)”; KRAM–F. [ Poland]

Diagnostic features

Cell I forming a thin, straight, externally darkened projection ( Fig. 55A–B , arrows). Primary appendage consisting of a somewhat flattened basal cell giving rise to an inner antheridial branch and a simple outer branch. Inner branch formed by an elongated main cell ( Fig. 55A–B , *) bearing on the outside a row of sessile antheridia or simple branchlets supporting antheridia. [Detailed descriptions: Benjamin 1993; Majewski 1994b]

Distribution and hosts

Confined to the true bug Hebrus ruficeps ( Hemiptera Hebridae ) from Poland (type), Spain ( Santamaria 1993a), and Costa Rica ( Goldmann & Weir 2018).

Collections examined from Denmark

On Hebrus ruficeps Thomson, 1871 (Heteroptera; Hebridae ) DENMARK – Lolland, Falster, Møn (LFM) • Hjelm Kobbel ; 54°54.863′ N, 12°14.918′ E; UA28; 28 Aug. 2019; JP 1504; JP det.; ZMUC C-F-124091 . – Sydsjaelland (SZ) • Bårse ; 55°7.680′ N, 11°56.494′ E; PG81; 24 Aug. 2019; JP 1503; JP det.; ZMUC C-F-124090 .

Remarks

First record from Denmark. A second species of Tavaresiella , i.e., T. santamariae , was reported from Europe only on Hebrus pusillus (Fallén) .

Figures

Fig. 65. A–B. Tavaresiella hebri T.Majewski. Two mature thalli with labelled I, II, III cells, elongated main cell of inner appendage branch (*), and darkened projection from cell I (arrows). – C–G. Amorphomyces ventricosus Santam. sp. nov. C. Lower area of perithecium in detail to focus on cells n and some of the wall cells (w n). D–F. Female mature thalli. G. Male thallus with labelled cells I, II and antheridium (an). Scale bars: A–B, D–F = 50 µm; C, G = 25 µm. Photographs from slides ZMUC C-F-124090 (A–B), ZMUC C-F-123457 (D–G) (holotype).

Fig. 55. A–B. Rossiomyces falcatus (T.Majewski) R.K.Benj. A. Mature thallus. B. Immature thallus showing labelled cells I, II, III, primary septum (a), trichogyne (tr), and spinous process from the original spore apex (sx). – C–D. Sphaleromyces lathrobii Thaxt. C. Mature thallus showing protrusion of cell III (arrow). D. Mature thallus from Spain showing labelled cells I, II and III. – E–G. Stichomyces conosomatis Thaxt. Mature thalli. Scale bars: 50 µm. Photographs from slides ZMUC C-F-122733 (A–B), ZMUC C-F-124186 (C), BCB-SS1543a (D), ZMUC C-F-122729 (E, G), ZMUC C-F-122630 (F).