Hyalopsora aspidiotus (Peck) Magnus, 1901
on Abies
gall
spermogonia on yellow spots of first-year needles. Aecia on yellowing needles. Aeciospores 21-14 x 16-19 µm, contents yellow, wall hyaline, thin, warty.
spermogonia, aecia
Pinaceae, monophagous
Abies alba, balsamea.
on Gymnocarpium
gall
uredinia hypophyllous, yellow, initially covered by the epidermis and the peridium, naked later. Urediniospores with a striking variation in thickness of the wall. Teliospores are formed in clusters of 2-7 within the epidermis cells of the host plant.
uredinia, telia
Woodsiaceae, monophagous
Gymnocarpium dryopteris, robertianum.
references
Brandenburger (1985a: 7, 14), Dietrich (2013a), Doppelbaur (1973a), Gäumann (1959a), González-Fragoso (1925a), Henderson (2000a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2019a), Ludwig (1974a), Poelt (1986a), Poelt & Zwetko (1997a), Ruszkiewicz-Michalska (2006a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Wilson & Henderson (1966a).