Puccinia elymi Westendorp, 1851

on Thalictrum

gall

Aecia yellow, at the underside of the leaf in thickened spots that are purplish brown above, yellow with a brown margin below.

spermogonia, aecia

Ranunculaceae, monophagous

Thalictrum aquilegiifolium, minus.


on Elymus, Hordelymus, Leymus

Puccinia elymi: teliospores

Leymus arenarius, from González-Fragoso (1925a): teliospores

gall

uredinia at the upperside of the leaf, often in lines of c. 3 mm, orange to cinnamon brown; no paraphyses; spores 22-25 x 28-35 µm, wall apically thickened; 8-10 (11) germination pores, each one capped by a low papilla. Telia hypophyllous, grey, covered by the epidermis, surrounded, and divided into compartments, by rows of brown paraphyses. Teliospores (1)3(4)-celled; wall smooth, apically thickened; pedicel brown, persistent, short.

uredinia, telia

Poaceae, narrowly oligophagous

Elymus sibiricus; Hordelymus europaeus; Leymus arenarius, mollis.

synonyms

Rostrupia elymi (Westendorp) Lagerheim, 1889.

references

Buhr (1965a) Dauphin & Aniotsbehere (1997a), Ellis & Ellis (1997a), Gäumann (1959a), González-Fragoso (1925a), Henderson (2000a, 2004a), Klenke & Scholler (2015a), Kruse & Jage (2014a), Scholler, Reinhard & Schubert (1996a), Termorshuizen & Swertz (2011a), Vanderweyen & Fraiture (2011a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

22/04/2017

mod 20.xi.2017