Golovinomyces salviae (Jaczewski) Scholler, Braun & Schmidt, 2016

on Salvia

Salvia cf x sylvestris, Belgium, prov. Antwerp, Meerhout © Carina Van Steenwinkel

infected leaf

another leaf, underside

cleistothecium

ascus

conidia chain

conidia

gall

mycelium hypophyllous or amphigenous, conspicuous, sometimes causing red upperside spots. Appressoria nipple-shaped, sometimes a bit lobed. Conidia in short chains, without fibrosin bodies. Foot-cell of conidiophore 30-100 µm long, practically straight. Cleistothecia with 5-13 asci, with 2 spores. Appendages numerous, mycelioid, septate, more or less brown, 0.5 – 2.5 x the cleistothecial diameter, attached to the lower half of the cleistothecium.

host plants

Lamiaceae, Nepetoideae, narrowly monophagous:

Salvia coccinea, farinacea, glutinosa, jurisicii, nemorosa & subsp. tesquicola, nutans, pratensis, sclarea, x sylvestris, tomentosa, transsylvanica, verbenaca, verticillata, virgata, viridis.

synonyms

Erysiphe salviae (Jaczewski) Blumer, 1933.

references

Hafellner (1980a), Jage, Scholler & Klenke (2010a), Kruse, Thiel, Frauenberger ao (2019a), Losa Quintana (1972b), Mayor (1967a), Scholler, Schmidt, Siahaan ao (2016a).