Erysiphe kenjiana (Homma) Braun & Takamitsu, 2000

on Ulmus

gall

mycelium amphigenous, mainly epiphyllous, greyish white. Appressoria lobed to multilobed, mostly paired. Conidia formed solitary, elliptic, without fibrosin bodies. Foot cell of conidiophore curved at the base. Cleistothecia 60-110 µm, with 3-6 asci, containing 2(-4) spores. Appendages 7-20, equatorial, 1-1.5 x the diameter; they are stiff, almost straight, aseptate; apex strongly thickened, ± 2 x spirally wound.

host plants

Ulmaceae, monophagous

Ulmus glabra, laevis, minor.

references

Braun & Cook (2012a), Heluta, Takamatsu, Voytyuk & Shiroya (2009b), Klenke & Scholler (2015a).

mod 10.ii.2019