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on Hemerocallis

gall

uredinia hypophyllous, soon naked and then bright orange; they may cover almost the entire leaf. Spores 16-21 x 19-25 µm, finely echinulate with 5-6 indistinct germination pores. Telia hypophyllous, long covered by the epidermis, blackish brown, with brown paraphyses; spores 2-celled, 12-15 x 30-30 µm.

uredinia, telia

Xanthorrhoeaceae, monophagous

Hemerocallis fulva, lilioasphodelus.

notes

in regions where winter temperatures do not kill the leaves of the host plant, the fungus can survive as uredinium. In this way it can maintain itself even though no host plant alternation is possible.

A reference to this species by Poelt & Zwetko derived from a mis-identification, but in 2015 the species was recorded from Europe for the first time, from Madeira and the Portugese mainland (Silva ea).

references

Alaei, De Backer, Nuytinck ao (2009a), Gäumann (1969a), Klenke & Scholler (2015a), Negrean & Anastasiu (2006a), Poelt & Zwetko (1997a, Silva, Carvalho, Nunes ao (2016a), Talhinhas, Carvalho, Figueira & Ramos (2019a).