Puccinia isiacae (von Thümen) Winter, 1887

broadly polyphagous

Puccinia isiacae: spermonogium (section)

Bryonia dioica, uit González Fragoso (1924a): unusually long paraphyses protrude from the opening

Puccinia isiacae: aecium (section)

aecium, section

gall

spermogonia pale yellow, in circles, epiphyllous, numerous, immersed, diameter up to 4o µm, with paraphyses protruding ip to 40 µm. Aecia in groups on pale or yellow leaf spots, mainly hypophyllous. The peridium generally is cupulate. Fresh aecia are snow white.

spermogonia, aecia

Alliaria petiolata; Anethum graveolens;
Arabis glabra; ? Atropa bella-donna;
Barbarea vulgaris;
Beta vulgaris;
Biscutella coronopifolia, laevigata;
Brassica oleracea;
Bryonia dioica;
Buglossoides arvensis;
Bupleurum rotundifolium;
Calendula stellata;
Camelina alyssum, sativa;
Capsella bursa-pastoris;
Cardaria draba;
Cerastium glomeratum;
Cleome spinosa;
Convolvulus althaeoides;
Cucumis sativus;
Cynanchum acutum;
Cynoglossum cheirifolium, clandestinum, officinale;
Descurainia sophia;
Diplotaxis viminea, virgata;
Dodartia orientalis;
Echium plantagineum;
Erodium;
Eruca vesicaria;
Erucastrum leucanthum, nasturtiifolium;
Eryngium planum;
Erysimum cheiranthoides;
Euclidium syriacum;
Galeopsis tetrahit;
Hymenolobus procumbens;
Isatis tinctoria;
Lamium galeobdolon, purpureum;
Lepidium campestre, cartilagineum, latifolium, perfoliatum, ruderale, vesicarium; Ligustrum ovalifolium, vulgare;
Linaria reflexa;
Mercurialis annua;
Myagrum perfoliatum;
Myosotis arvensis;
Nicotiana tabacum;
Noccaea jankae;
Pimpinella; Pseudoturritis turritis;
Raphanus sativus;
Reseda alba, phyteuma;
Rorippa palustris;
Silene vulgaris;
Sinapis alba, arvensis;
Sonchus tenerrimus;
Spinacia oleracea, tetrandra;
Stellaria media; Syringa;
Thlaspi arvense, ceratocarpon;
Tropaeolum majus;
Valerianella locusta, uncinata;
Veronica arvensis, hederifolia, serpyllifolia;
Zygophyllum atriplicoides, fabago.


on Phragmites

gall

Uredinia on the leaves and leaf sheaths, reddish brown, in large confluent groups; urediniospores echinulate, with 3 pores, on a long pedicel. Telia like the uredinia, but blackish brown. Teliospores two-celled, slender-pyriform; wall smooth, apically thickened, no papilla. Pedicel to over 200 µm, persistent, hyaline, often attached obliquely.

uredinia, telia

Poaceae, monophagpus

Phragmites australis & subsp. chrysanthus (Arundo isiaca).

synonyms

P. obtusata Otth, 1898; Puccinia trabutii Roumeguère & Saccardo, 1881.

notes

species of southern Europe. Conspicuous by its brightly white aecia. On common reed confusion is possible with P. magnusiana, but the pedicels of the teliospores are much longer and hyaline.

references

Alaei, De Backer, Nuytinck ao (2009a), Baka (2004a), Baka, Alwadie & Mostafa (2004a), Buhr (1964b), Gäumann (1959a), Gönczö & Révay (1981a), González Fragoso (1924a), Klenke & Scholler (2015a), Mayor (1967a), Negrean & Denchev (2000a), Savchenko, Heluta, Wasser & Nevo (2014d), Tomasi (2014a).

mod 28.vi.2019