Phragmidium tuberculatum Julius Müller, 1885
on Rosa
Rosa spec. (cult.), Bergen NH
underside
the aecia are orange yellow, hypophyllous, each on a small yellowed spot
each aecium is surrounded by a circle of curved paraphyses
the paraphyses
the aeciospores are tuberculate
telium, hylophyllous, like the aecia
teliospore with a clear, sharp apiculus
gall
no alternation of host plant. Spermogonia epiphyllous, honey coloured. Aecia orange, hypophyllous, with deep red spots at the corresponding upperside. Aecia often also on the stems and petioles, then causing swellings. Aecia without a peridium but with a dense circle of hyaline, sausage-shaped curved paraphyses; spores produced in chains, densely verrucose. Uredinia hypophyllous, small, 0.2 mm, equally encircled by paraphyses, spores single, pedicellate. Telia hypophyllous black; spores long pedicellate, elliptic, dark brown, transversely divided into 5-7 verrucose cells, abruptly terminated by well-defined, pale or hyaline apiculus of up to 22 µm length.
host plants
Rosaceae, monophagous
Rosa acicularis, agrestis, arvensis, canina, chinensis, corymbifera, dumalis, gallica, glauca, majalis, micrantha, montana, multiflora, phoenicea, pouzinii, pulverulenta, rubiginosa, rugosa, sempervirens, spinosissima, stylosa, tomentosa, villosa.
On cultivated roses the commonest Phragmidium.
references
Bahcecioglu & Kabaktepe (2012a), Bahçecioğlu, Kabaktepe & Yildiz (2006a), Beltran Tejera (1976a), Brandenburger (1972a), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Ellis & Ellis (1997a), Gäumann (1959a), Gjaerum (1982a), Gjaerum & Dennis (1976a), Gjaerum & Sunding (1986a), González-Fragoso (1925a), Helfer (2005a), Henderson (2000a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a, 019a), Kruse & Jage (2014a) Llorens i Villagrasa (1984a), Losa España (1942a, 1944a), Negrean (1997a), Petrova & Denchev (2004a), Poelt & Zwetko (1997a), Preece & Hick (1994a), Redfern & Shirley (2011a), Ritz, Maier, Oberwinkler & Wissemann (2005a), Sadravi, Ono, Pei & Rahnama (2007a), Savchenko, Heluta, Wasser & Nevo (2014c), Savchenko, Wasser, Heluta & Nevo (2019a), Schmid-Heckel (1985a), Scholler & Schubert (1993a), Termorshuizen & Swertz (2011a), Tóth (1994a), Vanderweyen & Fraiture (2007a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).