Taphrina carnea Johanson, 1886

on Betula

gall

leaf with several conspicuous, red or yellow, somewhat thickened bulges. At maturity the surface is lined with a layer of 30-90 µm high asci. The asci are placed directly on the leaf, without a base cell.

host plants

Betulaceae, monophagous

Betula pendula, pubescens.

synonyms

Taphrina janus (Thomas) Giesenhagen, 1892; T. lata Palm, 1918; Exoascus janus Thomas, 1897.

references

Bataille (1936a), Brandenburger (1985a: 53), Buhr (1964b), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Dietrich (2013a), Klenke & Scholler (2015a), Mix (1949a, 1956a)

mod 24.v.2019