Erysiphe vernalis Karsten, 1873
Fungi, Ascomycota, Leotiomycetes, Erysiphales, Erysiphaceae
on Alnus
gall
mycelium cobweb-like on young twigs and female catkins. Cleistothecia with 8-15 asci, containing 8 spores. Appendages few, attachted below the equator, 2-5 x the diameter. They are mycelioid, septate, unbranched.
hostplants
Betulaceae, monophagous
Alnus incana, viridis.
notes
Scandinavian species (Finland, Sweden).
references
Brandenburger (1985a: 49), Braun (1995a), Braun & Cook (2012a), Klenke & Scholler (2015a).
31/03/2017