Milesina carpatorum Hylander, Jørstad & Nannfeldt, 1953

on Dryopteris

gall

spermogonia and aecia unknown. Uredinia hypophyllous, pustulate, covered with a brown epidermis, in which a pore develops; spores short club shaped, remotely spinulose, on a short, plump pedicel, c. 20 x 14 µm. From September on the uredinia produce a white mass of spores during damp weather Telia at the underside of brown parts of the hibernated fronds. The spores are formed in the epidermis cells; they are irregular in shape, thin-walled, 1-60 celled.

host plants

Dryopteridaceae, monophagous

Dryopteris filix-mas.

Gäumann additionally cites D. carthusiana.

synonyms

Milesia carpatica (Wróblewski) Faull, 1932.

notes

Much rarer than M. kriegeriana, distinguished by the smaller urediniospores.

references

Brandenburger (1985a: 6), Bubner, Buchheit, Friedrich ao (2019a), Eichhorn (1941a), Ellis & Ellis (1997a), Gäumann (1959a), Henderson (2000a), Klenke & Scholler (2015a), Poelt & Zwetko (1997a), Tănase & Negrean (2007a), Termorshuizen & Swertz (2011a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

mod 4.v.2019