Phragmidium fusiforme Schröter, 1870

on Rosa

Phragmidium fusiformeL teliospores

Rosa pendulina, from González-Fragoso (1925a): teliospores

gall

no alternation of hostplant. Spermogonia mostly epiphyllous, between epidermis and cuticula. Aecia hypophyllous, orange, extensive pads, without a peridium but with a coronet of hyaline, sausage-shaped curved paraphyses; spores produced in chains, separated by intercalar cells, spinulose. Uredinia like the aecia but smaller, spores single, pedicellate. Teliospores develop in the uredinia: long pedicellate, fusiform (tapering towards the apiculus), dark brown, transversely divided into c.10-12, coarsely verrucose cells, top cell gradually tapering into an apiculus.

hostplants

Rosaceae, monophagous

Rosa acicularis, gallica, glauca, majalis, mollis, pendulina, pulverulenta, villosa.

references

Blumer (1946a), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Ellis & Ellis (1997a), Gäumann (1959a), González-Fragoso (1925a), Helfer (2005a), Henderson (2000a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Negrean (1996b), Petrova & Denchev (2004a), Poelt & Zwetko (1997a), Redfern & Shirley (2011a), Ritz, Maier, Oberwinkler & Wissemann (2005a) DNA, Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a).

27/05/2017

mod 11.xi.2017