Plant Parasites of Europe

leafminers, galls and fungi

Hyalopsora polypodii

Hyalopsora polypodii (Persoon) Magnus, 1901

on Cystopteris

Hyalopsora polypodii: urediniospores

Cystopteris fragilis, from González-Fragoso (1925a): urediniospores


only uredinia and telia are known. Uredinia amphigenous, small pustules, initially covered by the epidermis and peridium later naked, fresh golden yellow. Telia hypophyllous, yellowish brown; the teliospores are formed within the epidermal cells of the host plant, in groups of 2-7.

host plants

Woodsiaceae, monophagous?

Cystopteris fragilis & subsp. alpina, montana.

Gäumann additionally mentions Athyrium filix-femina and Woodsia glabella, obtusa, belonging to the same plant family, but that is not repeated by later authors.


Mycodiplosis buhri.


the spermogonia and aecia of this species are unknown; it is expected that they develop on Abies (Klenke & Scholler).


Bahçecioğlu & Kabaktepe (2012a), Brandenburger (1985a: 6), Eichhorn (1941a), Ellis & Ellis (1979a), Gäumann (1959a), Gjaerum (1986a), González-Fragoso (1925a), Henderson (2000a), Hick & Preece (1990a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kruse (2019a), Ludwig (1974a), McTaggart, Geering & Shivas (2014a), Maier, Begerow, Weiß & Oberwinkler (2003a), Poelt (1986a), Poelt & Zwetko (1997a), Ruszkiewicz-Michalska (2006a), Schmid-Heckel (1985a), Skuhravá, Skuhravý & Meyer (2014a), Termorshuizen & Swertz (2011a) Tóth (1994a), Unamuno (1941b), Vanderweyen & Fraiture (2007a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

Last modified 30.vii.2022