Amphisphaeriales » Hyponectriaceae

Hyponectria

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

Xylariomycetidae, Amphisphaeriales, Hyponectriaceae, Hyponectria

Index Fungorum number: IF 2448; Facesoffungi number: FoF 02112; 30 morphological species (Species Fungorum 2020); 1 species and 3 unnamed species with sequence data.

 

Pathogenic or saprobic on leaves of Buxus sp. Sexual morph: Ascomata immersed, depressed globose, observable as orange to brown dots on the host surface, typically gregarious or solitary, coriaceous, ostiolate. Ostiole aperiphysate. Peridium one stratum of 2 layers of cells of textura angularis with thickened, brown walls cells around the ostiole. Paraphyses not observed. Asci 8-spored, unitunicate, cylindric-clavate to clavate, short pedicellate, with an indistinct, J-, apical ring. Ascospores hyaline, overlapping biseriate or obliquely uniseriate, ellipsoidal or oblong, straight or inequilateral, 1-celled, contents minutely guttulate, lacking a sheath. Asexual morph: Undetermined (adapted from Maharachchikumbura et al. 2016).

 

Type species: Hyponectria buxi (Alb. & Schwein.) Sacc., Michelia 1(no. 2): 250 (1878)

 

Notes: Hyponectria was revised and described in Maharachchikumbura et al. (2016). 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. 2016). Hyponectria buxi is illustrated in this entry.

 

 

Species illustrated in this entry:

Hyponectria buxi (Alb. & Schwein.) Sacc.

 

 

References:

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2016 – Families of Sordariomycetes. Fungal Diversity 79, 1–317

 

 

 

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