Phragmidium mucronatum (Persoon) von Schlechtendal, 1824

on Rosa

Phragmidium mucronatum on Rosa canina

Rosa canina, Zwanenwater: upperside of an infested leaf

Phragmidium mucronatum telia on Rosa canina

even with a hand lense the teliospores at the underside of the leaf a visible

Phragmidium mucronatum: teliospores

the teliospores have a finely warty surface, and bear a sharply defined apiculus

Phragmidium mucronatum: teliospores

Rosa centifolia. uit González-Fragoso (1925a): teliosporen

gall

no alternation of host plant. Spermogonia near the aecia, between epidermis and cuticula. Aecia hypophyllous, orange, without a peridium but with a circle of hyaline, sausage-shaped curved paraphyses; spores produced in chains, sparsely spinulose. 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 c.6, coarsely verrucose cells, abruptly terminated by an apiculus; the spore pedicels swell when in contact with water.

host plants

Rosaceae, monophagous

Rosa agrestis, alba, arvensis, blanda, caesia, californica, canina, carolina, centifolia, corymbifera, dahurica, x damascena, dumalis, “eglanteria”, foetida, gallica, glauca, gorenkensis, inodora, majalis, marginata, micrantha, mollis, muscosa, orientalis, parviflora, pulverulents, rubiginosa, rugosa, “scandens”, sempervirens, setigera, spinosissima, subcanina, tomentosa, turcica, villosa, virginiana.

synonyms

Phragmidium bullatum Westendorp, 1854; Ph. disciflorum (Tode) James, 1895; Ph. subcorticium (Schrank) Winter, 1881.

predators

Mycodiplosis coniophaga, ceomatis.

references

Bahcecioglu & Kabaktepe (2012a), Blumer (1946a), Buhr (1965a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Doppelbaur (1973a), Ellis & Ellis (1997), Erdoğdu, Hüseyin & Suludere (2010a), Gäumann (1959a), Gjaerum (1986a, 1987a), Gjaerum & Dennis (1976a), González-Fragoso (1925a), Helfer (2005a), Henderson (2000a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (215a), Korytnianska & Popova (2012a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a, 2019a), Llorens i Villagrasa (1984a), Losa España (1942a), Negrean (1997a), Petrova & Denchev (2004a), Poelt & Zwetko (1997a), Preece & Hick (1994a), Redfern & Shirley (2011a), Riegler-Hager (2002b), Ritz, Maier, Oberwinkler & Wissemann (2005a), Roques, Cleary, Matsiakh & Eschem (2017a), Roskam (2009a), Ruszkiewicz-Michalska (2006a), Savchenko, Heluta, Wasser & Nevo (2014c), Săvulescu & Rayss (1935a), Scheuer & Bechter (2012a), Spooner & Butterfill (1999a), Termorshuizen & Swertz (2011a), Tomasi (2003a), Tóth (1994a), Unamuno (1941b, 1942a), Vanderweyen & Fraiture (2007a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

mod 23.viii.2019