Phragmites australis, Bergen NH, Uilenvanger: anamorph; the acervuli that erupt through the epidermis have a strong resemblance with rust telia

conidium

parasite

Teleomorph: 3 mm long black stromata below the epidermis of the leaf sheats, that split open longitudinally. They contain a series of perithcia cavities. Ascospores 5-6 x 17-24 µm, hyaline, 1=septare. the anamorf forms elongated leaf spots with 1 mm long acervuli; conidia globular, finely verrucculose, ø 10-16 µm.

hostplants

Poaceae, oligophagous

Arundo; Phragmites australis; Triticum.

Obrsit exclusively mentions Phragmites.

synonyms

Hadrotrichum phragmitis Fuckel, 1865.

references

Barr (1972a), Brandenburger (1985a: 822), Chlebicki & Treigiene (1995a), Ellis & Ellis (1997a: 512), Klenke & Scholler (2015a), Kozłowska, Mułenko, Anusiewicz & Wołkowycki (2019a), Obrist (1959a).