Melampsora laricis-tremulae Klebahn, 1897

on Larix

gall

see Caeoma laricis.

spermogonia, aecia

Pinaceae, monophagous

Larix decidua, kaempferi, sibirica.


on Populus

gall

uredinia hypophyllous, not causing leaf spots, 0.5 mm, yellow, flat. Throughout the uredinium stand paraphyses on a thin stem that rather gradually widens into a club-like head with uniformly thickened wall. Urediniospores oval, with spines all over. Telia 0.5 mm, often in groups, brown, subepidermal; teliospores columnar.

uredinia, telia

Salicaceae, narrowly monophagous

Populus alba, x canescens, tremula.

synonyms

see the discusson under M. pinitorqua.

references

Blumer (1946a), European and Mediterranean Plant Protection Organization (2009a), Gäuman (1959a), Klenke & Scholler (2015a), Kruse (2014a), Longo, Naldini, Paolillo ao (1997a), Poelt & Zwetko (1997a), Termorshuizen & Swertz (2011a), Vialle, Frey, Hambleton ao (2011a).

mod 14.viii.2018