Golovinomyces monardae (Nagy) Scholler, Braun & Schmidt, 2016

on Lamiaceae, (Verbenaceae)

Golovinomyces monardae on Mentha spec.

Mentha spec., Belgium, prov. Antwerp, Turnhout, Frans Segersreservaat, 19.viii.2018 © Carina Van Steenwinkel

Golovinomyces monardae on Mentha spec.

also the underside of the leaf bears a few cleistothecia

Golovinomyces monardae: cleistothecia

cleistothecia

Golovinomyces monardae: cleistothecium

cleistothecium

Golovinomyces monardae: appendages

appendages

Golovinomyces monardae: asci

asci

gall

mycelium amphigenous, mainly epiphyllous and along the main veins. Appressoria nipple-shaped, best developed in July and August. Conidia in short chains, without fibrosin bodies. Foot-cell of conidiophore 40-100 µm long, mostly distinctly curved. Cleistothecia with 5-15 asci, with 2 (up to 4) 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.

hostplants

Lamiaceae, Nepetoideae; Verbenaceae; narrowly polyphagous:

Melissa officinalis; Mentha aquatica, arvensis, x dalmatica, x gentilis, longifolia, x piperita, pulegium, spicata, suaveolens, x verticillata, x villosa, x villoso-nervata; Monarda citriodora, didyma, fistulosa, punctata, russeliana; Origanum majorana, vulgare; Rosmarinus officinalis; Thymus comosus, dacicus, x dimorphus, odoratissimus, pallasianus, praecox, pulcherrimus, pulegioides & subsp. pannonicus, roegneri, serpyllum; Verbena bonariensis.

references

Jage, Klenke, Kruse ao (2016a), Jage, Scholler & Klenke (2010a), Kruse (2019a), Kruse, Thiel, Frauenberger ao (2019a), Scholler, Schmidt, Siahaan ao (2016a).

mod 2.ix.2019