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on Iris

gall

uredinia cinnamon coloured, bladder-like, opening with a slit; spores with 3 or 4, mostly equatorial, germination pores, 21-27 x 25-33 µm. Telia black, hypophyllous, linear, often confluent; spores 2-celled, 13-20 x 30-57 µm; wall smooth, in top cell apically thickened to 12 µm.

uredinia, telia

Iridaceae, monophagous

Iris.

synonyms

closely related, possibly conspecific, with P. iridis.

references

Brandenburger (1985a: 78, 741).