Podosphaera niesslii (Thümen) Braun & Takamatsu, 2000

on Sorbus

gall

mycelium hypophyllous, inconspicuous. Conidia very scarce, formed in chains, with fibrosin bodies. Cleistothecia with a single ascus, containing 8 spores. Appendages in varying number, sub-equatorial, shorther than the diameter; they are mycelioid, light brown, septate, unbranched.

host plants

Rosaceae, monophagous

Sorbus aria, latifolia, mougeotii.

synonyms

Sphaerotheca niesslii Thümen, 1879.

references

Braun (1995a), Braun & Cook (2012a), Bresinsky (2016a), Klenke & Scholler (2015a), Kruse (2019a), Leysen (2017a).