Puccinia leontodontis Jacky, 1899

on Leontodon, Scorzoneroides

gall

No host plant alternation; aecia are missing. Spermogonia honey-coloured, mostly amphigenous. The first uredinia that are formed (in June) are dark brown, mainly hypophyllous, develop on galled parts of the leaf that at the upperside bears purple or brow spots; from July the uredinia are cinnamon-coloured. Urediniospores 22-30 x 24-35 µm, spinulose, 2 germination pores in the top half of the spore, each surrounded by a smooth zone. Telia blackish brown, amphigenous. Teliospores 21-24 x 30-40 µm, elliptic, 2-celled, verruculose; pedicel short, hyaline.

hostplants

Asteraceae, narrowly oligophagous

Leontodon berinii, biscutellifolius, crispus, hirtus, hispidus &ammp; subsp. hasilis + montanus, hyoseroides, incanus, saxatilis & subsp. rothii, tenuiflorus; Scorzoneroides autumnalis, helvetica, montana, muelleri, pyrenaica.

synonyms

sometimes taken as a variety of P. hieracii.

references

Blumer (1946a), Brandenburger (1985a), Buhr (1964b), Doppelbaur & Doppelbaur (1973a), Gäumann (1959a), Gjaerum (1982a), González Fragoso (1924a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kruse (2014a), Kruse & Jage (2014a), Losa Quintana (1972a), Termorshuizen & Swertz (2011a).

27/05/2017

mod 16.vii.2017