Puccinia poae-nemoralis Otth, 1871

on Berberis

gall

Aecia hypophyllous, tiny (< 0.4 mm); peridium without clear, outwards curved, segments. At this stage P. brachypodii, poae-nemoralis, and pygmaea are indistinguishable.

hostplants

Berberidaceae, monophagous

Berberis vulgaris.


on grasses

Puccinia poae-nemoralis on Poa pratensis

Poa pratensis, Denekamp, lg. Singraven

Puccinia poae-nemoralis on Poa pratensis

all lower leaves in this population were occupied by uredinia

Puccinia poae-nemoralis: uredinia on Poa pratensis

uredinia

Puccinia poae-nemoralis: paraphyses protection

the outer layer of the uredinia consists of the heads of the numerous parahyses

Puccinia poae-nemoralis: uredinium-paraphyses

the paraphyses often are constricted below the head

Puccinia poae-nemoralis: urediniopsporePuccinia poae-nemoralis: urediniopspore

two images of the same urediniospore

Puccinia poae-nemoralis on Poa pratensis

Poa pratensis, Nieuwendam: uredinia on the leaf sheaths

Puccinia poae-nemoralis
 on Poa pratensis

even in the inflorescence

gall

Uredinia never in long stripes, yellowish or orange brown, with many hyaline paraphyses that bear a distinct head and often are sharply bent just below; spores with 10-12 indistinct germination pores. Telia rare, hypophyllous, small, blackish brown, long covered by the epidermis, with brown paraphyses.

uredinia, telia

Poaceae, oligophagous

Alopcurus pratensis; Calamagrostis arundinacea; Catabrosa aquatica; Danthonia decunbens; Festuca halleri, ovina, stricta subsp. sulcata, versicolor; Lolium perenne; Miilium effusum; Ochlopoa annua; Piptatherum paradoxum; Poa angustifolia, compressa, nemoralis, palustris, pratensis, trivialis; Schedonorus arundinaceus.

synonyms

Puccinia brachypodii var. poae-nemoralis (Otth) Cummins & Greene 1966; P. milii Eriksson, 1895; P. poae-sudeticae Jørstad, 1932; P. thalictri-poarum Fischer & Mayor, 1925.

references

Blumer (1946a), Brandenburger (1985a), Chlebicki & Lembicz (2001a), Gäumann (1959a), Gjaerum & Dennis (1976a), González Fragoso (1924a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kruse (2014a), Kyiashchenko (2011a), Liu & Hamilton (2010a, 2013a), Ludwig (1974a), Marková & Urban (1988a), Mułenko, Sałata & Wołczańska (1995a), Saba & Khalid (2013a), Preece & Hick (1994a), Scholler, Reinhard & Schubert (1996a), Ruszkiewicz-Michalska (2006a), Scheuer & Bechter (2012a), Termorshuizen & Swertz (2011a), Vanderweyen & Fraiture (2011a), Woods, Stringer, Evans & Chater (2015a).

27/05/2017

mod 18.vii.2017