Plant Parasites of Europe

leafminers, galls and fungi

Puccinia fragosoi

Puccinia fragosoi Bubák, 1916

op Allium


spermogonia amphigenous, orange, often visible between the aecia. Aecia hypophyllous, cup-shaped, with a white peridium and an orange mass of spores.

spermogonia, aecia

Amaryllidaceae monophagous

Allium ampeloprasum, fistulosum, flavum, lusitanicum, polyanthum, roseum, schoenoprasum, senescens, sphaerocephalon.


morphologically not with certainty distinguishable from other species on the same host plant.

Puccinia fragosoi: telium (section)

Rostraria cristata, from González Fragoso (1924a): section through a telium with bundles of paraphyses and teliospores (some unicellular)

on Koeleria, Rostraria


uredinia mainly epiphyllous, yellowish brown, erupting through the epidermis, then pulverulent. Urediniospores ± globular, wall verucose with 8-10 germination pores. Telia hypophyllous, black, long covered by the epidermis, divided into compartments by rows of slender, brown, paraphyses. Teliospores 2-celled, not constricted; wall smooth, rather thin except apically at the flattened tip, where even irregular tubercles may develop; pedicel 10-20 µm long, relatively thick, brown, persistent

uredinia, telia

Poaceae, narrowly oligophagous

Koeleria hirsuta, macrantha, vallesiana subsp. castellana; Rostraria cristata, pubescens, rohlfsii.


P. fragosoi is considered a junior synonym of P. hordei by the Index Fungorum (2016).


Brandenburger (1985a: 719, 816), Gäumann (1959a), González Fragoso (1924a), Klenke & Scholler (2015a), Termorshuizen & Swertz (2011a).

Last modified 13.xii.2022