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).