Golovinomyces hydrophyllacearum (Braun) Heluta, 1988
on Nemophila, Phacelia
mycelium amphigenous, almost persistent. Conidia in chains, elliptic, without fibrosin bodies. Cleistothecia with 6-15 asci that contain 2 (rarely 3) spores. Appendages numerous, attached on and above the equator, 1-3.5 x the diameter; they are rather stiff and straight, unbranched, septate, brown for much of their length.
North American species, in Europe known only from the ornamental Nemophila menziesii. Phacelia, that is much used in Europe because of its nectar production, is still a potential host plant.
Ale-Agha, Boyle, Braun ao (2008a), Braun & Cook (2012a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (2015a).