Hyponectria Sacc., Michelia 1(no. 2): 250 (1878)

MycoBank number: MB 2448; Index Fungorum number: IF 2448; Facesoffungi number: FoF 06186; 30 morphological species (Species Fungorum 2020); 1 species and 3 unnamed species with sequence data.

Type speciesHyponectria buxi (Alb. & Schwein.) Sacc.

NotesHyponectria was revised and described in Maharachchikumbura et al.  (2016b). Hyponectria has solitary or mostly gregarious, immersed ascomata with a central ostiole, visible as orange to brown dots on the host surface, cylindric-clavate to clavate, short pedicellate asci with a J-, apical ring and hyaline, ellipsoidal or oblong, aseptate ascospores, without a mucilaginous sheath (Maharachchikumbura et al. 2016b). Hyponectria buxi is illustrated in this entry.

Figure 125 Hyponectria buxi (Material examined – UK, Surrey, Mickleham, on leaves of Buxus sp., 1927, E.W. Mason no. 365, IMI 16895, IMI52229, IMI49466). a Herbarium specimen. b Ascomata on the upper leaf surface. c Ascomata on the lower leaf surface. d Close up of ascoma. e Close up of ascomata under microscope. f J-, reaction of apical ring in Melzer’s reagent. g Cells of peridium. h Section of ascomata. i-k Asci. l-q Ascospores. Scale bars: b-c = 500 μm, d = 200 μm, e, h = 50 μm, f, i-k = 10 μm, g = 20 μm, l-q = 5 μm.


  • Hyponectria buxi