Milesina murariae (Magnus) Grove, 1921

on Abies ?

gall

unknown.

---

on Asplenium

Asplenium ruta-muraria, Belgium, prov Liège, Kelmis, Vallée de la Gueule en amont de Plombières, 17.iv.2020 © Carina Van Steenwinkel

urediniospores

detail

spores in this material 17-24 x 25-40 µm.

gall

uredinia green, hypophyllous, pustulate, covered with a brown epidermis, in which a pare develops; spores short club shaped, remotely spinulose, on a short, plump pedicel. The uredinia ripen in late autumn and winter, releasing a white mass of spores, especially in 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, 1-15-celled.

uredinia, telia

Aspleniaceae, narrowly monophagous

Asplenium ruta-muraria.

synonyms

Milesia murariae.

references

Brandenburger (1985a: 5), Bubner, Buchheit, Friedrich ao (2019a), Eichhorn (1941a), Ellis & Ellis (1997a), Gäumann (1959a), González-Fragoso (1925a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kruse (2019a), Negrean (1996b), Poelt (1986a), Poelt & Zwetko (1997a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).