Urocystis mustaphae Maire, 1914

on Clematis

gall

pustules on leaves, petioles and stems, containing a black powdery mass of spore balls. The spore balls consist of 1-8 spores, usually completely wrapped in a layer of smaller sterile cells.

hostplants

Ranunculaceae, narrowly monophagous

Clematis alpina & sibirica.

synonyms

Urocystis atragenes (Liro) Zundel, 1953.

references

Buhr (1964b), Klenke & Scholler (2015a), Vánky (1994a).

mod 27.vii.2018