Puccinia fragosoana Beltrán, 1921

on Imperata

gall

no host alternation, uredinia and telia. Uredinia amphigenous, dark brown, on yellow spots, often in length rows. Urediniospores 16-27 x 24-45 µm, verrucose, with 4-5 germination pores; wall apically thickened to 8 µm. Numerous clavate paraphyses, stalk up to 60 µm, head diameter up to 20 µm; stalk hyaline, head yellowish to brown. Telia blackish brown, amphigenous, on yellow spots. Spores 2-celled, oval, 14-22 x 24-37 µm; pedicel attached laterally, thick, hyaline, up to 48 µm.

uredinia, telia

Poaceae, monophagous

Imperata cylindrica.

references

Baka, Alwadie & Mostafa (2004a), Baka & Rabei (2013a), Brandenburger (1985a: 844), Gäumann (1959a), González Fragoso (1924a), Savchenko, Heluta, Wasser & Nevo (2014d), Savchenko, Wasser, Heluta & Nevo (2019a).

mod 21.xii.2019