Eupatorium cannabinum, Belgium, prov. Limburg, Weert © Carina Van Steenwinkel

gall

mycelium amphigenous, also on the stems, thin, white, on the upper side of the leaves mostly persistent. Appressoria indistinct to nipple-shaped, mostly single. Conidia oval, formed in chains, without fibrosin bodies. Cleistothecia amphigenous, also on the stems, with 5-15 asci that contain 2(-3) spores. Appendages numerous, equatorial and sub-equatorial, 0.5-2.5 x the diameter; they are mycelioid, simple, hyaline or brown.

host plants

Asteraceae – Eupatoriaeae, oligophagous

Ageratina adenophora, altissima; Conoclinium coelestinum; Eupatorium cannabinum, perfoliatum; Eutrochium fistulosum, maculatum, purpureum.

references

Braun & Cook (2012), Bresinsky (2016a), Jage, Klenke, Kruse ao (2016a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a).