Cladosporium hypophyllum Fuckel, 1870

on Ulmus

Cladosporium hypophyllum

from Bensch, Braun, Groenewald & Crous (2012a); K Bensch del.; scale bar = 10 µm

gall

no actual leaf spots but a hypophyllous olivaceous greyish cover. Mycelium external (perhaps not actually a parasite?) Colonies hypophyllous, olivaceous brown, sometimes covering large areas of the leaf. Conidiophores solitary or in small groups, never fasciculate. Conidia in chains, 2-5 x 4-17 µm, 0-1-septate, pale olivaceous.

hostplants

Ulmaceae, monophagous

Ulmus minor.

references

Bensch, Braun, Groenewald & Crous (2012a).

mod 3.vi.2018