Pyrenophora trichostoma (Fries) Fuckel, 1870

on grasses, etc.

Elytrigia repens, Belgium, prov. Antwerp, Meerhout, Schepenenbroek, 21.v.2021 © Carina Van Steenwinkel

dissected perithecium

asci

ascus, opening

ascospore

another image

grass, Belgium, prov. Antwerp, Kasterlee, Tikkebroeken, 15.iii.2022 © Carina Van Steenwinkel

ascus

ascospore

parasite

Perithecia ≤ 0.5 mm, immersed in dead tissue, around the mouth opening siff, dark brown, septate setae. Ascospores pale golden brown, smooth, 17-25 x 40-55 µm, 3 transverse and 1-2 longitudinal septa.

host plants

polyphagous

Agrostis alpina; Ammophila arenaria; Anisantha sterilis; Brachypodium sylvaticum; Briza media; Bromus; Calamagrostis; Carex ferruginea; Dactylis glomerata; Elytrigia repens, Festuca pulchella, rubra, violacea; Hordeum vulgare subsp. distichon; Phleum hirsutum; Poa nemoralis; Puccinellia distans; Secale cereale; Trisetum flavescens; Triticum aestivum.

references

Chlebicki & Lembicz (2001a), Dennis (1983a), Ellis & Ellis (1997a: 466), Hyde, de Silva, Jeewon, ao (2020a), De Meulder (2008d), Müller (1951a).