Melampsoridium hiratsukanum Ito, 1927
on Larix
gall
spermogonia mostly hypophyllous, honey yellow. Aecia hypophyllous too, cylindrical, up to 2 mm high, colourless; spores orange.
spermogonia, aecia
Pinaceae, monophagous
Larix decidua, gmelinii, kaempferi.
on Alnus
pore of the uredinium, and urediniospore of M. hiratsukanum (a, b), compared with the same in M. betulinum (c, d). Scale lines a,c = 10 µm, b, d = 1 µm. From Tykhonenko (2011a).
gall
uredinia like those of M. betulinum, but the spores are spinulose also at their apex. Moreover, the cells around the pore of the uredinium through which the spores are released form an long acute point. Infected leaves are curled inwards.
uredinia, telia
Betulaceae, monophagous
Alnus cordata, glutinosa, incana & subsp. rugosa, orientalis.
Mainly on A. incana, causing severe defoliation.
references
Bahçecioğlu & Kabaktepe (2012a), Beenken & Senn-Irlet (2016a), Brandenburger (1985a: 50), Gäumann (1959a), Gjærum, Lye & Solheim (2004a), Hantula & Scholler (2013a), Jage, Kruse, Kummer ao (2013a), Jalkanen (2016a), Klenke & Scholler (2015a), Kruse (2014a, 2019a), Lilja, Rytkönen, Hantula ao (2011), Moricca & Maresi (2010a), Markovskaja (2013a), McKenzie, Padamsee & Dick (2013a), Mułenko, Piątek, Wołczańska ao (2010a), Negrean & Anastasiu (2006a), Piątek, Ronikier & Miśkiewicz (2001a), Riegler-Hager, Scheuer & Zwetko (2003a), Sert & Sümbül (2005a), Szabó (2002a), Termorshuizen & Swertz (2011a), Tykhonenko (2011a), Tykhonenko, Heluta & Dudka (2016a), Wilson & Henderson (1966a), Wołczańska (1999a), Woods, Stringer, Evans & Chater (2015a).