Orphanomyces arcticus (Rostrup) Saville, 1974
on Carex
gall
sori as black stripes or crusts on young leaves; the fungus is systemic, infected plants do not flower. Spores not united in balls, their surface with a reticulate structure.
host plants
Cyperaceae, monophagous
Carex brunnescens, canescens, davalliana, glareosa, halleriana, lachenalii, macloviana, maritima, stenophylla.
synonyms
Ustilago arctica (Rostrup) Lindeberg, 1959.
references
Buhr (1964b), Klenke & Scholler (2015a), Tomasi (2012a, 2014a), Vánky (1994a).