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

Melampsoridium hiratsukanum: details

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

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), Lilja, Rytkönen, Hantula, Müller, Parikka & Kurkela (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).

mod 11.xi.2017