Golovinomyces hydrophyllacearum (Braun) Heluta, 1988

on Nemophila, Phacelia

notes

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.

hostplants

Boraginaceae, oligophagous

Nemophila menziesii; Phacelia.

notes

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.

references

Ale-Agha, Boyle, Braun ao (2008a), Braun & Cook (2012a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (2015a).

mod 25.viii.2018