Puccinia holcina Eriksson, 1899

on Holcus

gall

Host alternation not known, only uredinia and telia. Uredinia yellowish brown, in groups, mainly epiphyllous; spores ± globular, 15-20 x 18 x 24 µm, with probably 7-9 inconspicuous germination pores. Telia small, blackish brown, covered by the epidermis, in rows on the leaf sheaths; they contain brown paraphyses. Teliospores two-celled (but one-celled spores are not rare), clavate, 15-28 x 32-56 µm; wall smooth, thin (only apically a bit thicker); pedicel short.

hostplants

Poaceae, monophagous

Holcus annuus & subsp. setiglumis, lanatus, mollis & subsp. reuteri.

synonyms

often considered conspecific with P. hordei.

references

Alaei, De Backer, Nuytinck, ao (2009a), Brandenburger (1985a: 815), Doppelbaur & Doppelbaur (1973a), Gäumann (1959a), González Fragoso (1924a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Liu, Szabob, Hambleton, ao (2013a), Scholler, Reinhard & Schubert (1996a), Scholler & Schubert (1993a), Termorshuizen & Swertz (2011a), Vanderweyen & Fraiture (2011a).