Podosphaera alpina (Blumer) Braun & Takamatsu, 2000

on Saxifraga

gall

mycelium amphigenous, also on other parts of the plant, white, later forming brown to almost black films or crusts. Conidia formed in chains, with fibrosin bodies. Cleistothecia contain a single ascus with 6- spores. Appendages in variable numbers, sub-equatorial, 0.5-6 x the diameter; they are brown, septate, mostly unbranched.

host plants

Saxifragaceae, monophagous

Saxifraga oppositifolia, rotundifolia.

synonyms

Sphaerotheca alpina Blumer, 1933.

references

Braun (1995a), Braun & Cook (2012a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (2015a), Leysen (2017a).