Paragnomonia Senan. & K.D. Hyde, Mycosphere 8(1): 198 (2017)

Index Fungorum number: IF552723; 1 species with sequence data.

Etymology: In reference to the similarity to Gnomonia.

Type species – Paragnomonia fragariae (Kleb.) Senan. & K.D. Hyde

Pathogenic on plants. Sexual morph: Ascomata immersed, on roots and petioles, only neck visible when associated with the host, solitary, globose to subglobose, black, coriaceous, papillate, ostiolate. Papilla central, straight to curved. Peridium comprising the outer layer of large, brown cells of textura angularis and the inner layer of compressed, hyaline cells of textura angularis. Asci fusiform to obovoid, with short pedicel and J- apical ring. Ascospores obliquely uniseriate, fusiform, straight to curved, 1-median-septate, not constricted at the septum, with 4–6 guttules in each cell, sometimes more than 6-guttulate. Appendages apical and basal, hyaline. Asexual morph: Conidiomata tiny, pycnidia, solitary, immersed to erumpent, black. Conidiophores reduced to conidiogenous cells. Conidiogenous cells elongate, conical, unbranched, hyaline. Conidia oval to ellipsoid, aseptate, 2-guttulate, hyaline (description based on Alexopoulos & Cation 1952).

NotesParagnomonia fragariae was isolated from dead petioles and leaves of strawberry and causes strawberry decline.

Species

  • Paragnomonia fragariae