Golovinomyces vincae Braun & Tamamatsu, 2019

on Vinca

Golovinomyces vincae: powdery mildew on Vinca minor

Vinca major, Loenen © Arnold Grosscurt

Golovinomyces vincae: mildew on Vinca major

Vinca major, Belgium, prov. Antwerp, Meerhout © Carina Van Steenwinkel

Golovinomyces vincae: appressorium

appressorium

Golovinomyces vincae: conidia

conidia

parasite

Mycelium amphigenous, forming thin white spots. Appressoria nipple-shaped, solitary. Conidiophores straight, 70-140 µm lang (without conidia). Foot-cell usually sinuous, basal septum at the junction with the mother cell or somewhat elevated; foot-cells followed by 1–3(–4) shorter cells.

host plants

Apocynaceae, monophagous

Vinca difformis, herbacea, major.

synonyms

Golovinomyces orontii: auct.

references

Braun, Shin, Takamatsu ao (2019a), Glawe & Koike (2008a).

mod 17.iii.2019