Podosphaera volkartii (Fries) Braun & Shishkoff, 2000

on Dryas

gall

mycelium hypophyllous, weakly developed, invisible between the indumentum of the plant. Cleistothecia immersed in the indumentum, with a single ascus, containing 8 spores. Appendages very few or missing missing, rudimentary, myceloid, unbranched.

hostplants

Rosaceae, monophagous

Dryas octopetala.

synonyms

Sphaerotheca volkartii Blumer, 1933.

references

Braun (1995a), Braun & Cook (2012a), Klenke & Scholler (2015a).

mod 6.vi.2018