Phyllactinia takamatsui

Phyllactinia takamatsui is a species of powdery mildew in the family Erysiphaceae. It is found in North America and Eurasia, where it affects the genus Cotoneaster.

Description

The fungus forms a weak, very thin, often smooth coating on the undersides of leaves of Cotoneaster. Phyllactinia pyri-serotinae is also reported from this genus.

Taxonomy

The fungus was formally described in 2016 by Khodaparast and Mohammadi. The type specimen was collected in Iran. The species is named after Japanese mycologist Susumu Takamatsu.