Puccinia centaureae-rhapontici Mayor, 1918

Fungi, Basidiomycota. Pucciniomycetes, Pucciniales, Pucciniaceae

op Rhaponticum

on Rhaponticum

Rhaponticum centauroides, uit González Fragoso (1924a): telium (doorsnede), teliosporen, urediniosporen

Puccinia centaureae-rhapontici: telium and spores

Rhaponticum centauroides, from González Fragoso (1924a): telium (section), teliospores, urediniospores

gal: Geen waardwisseling; geen aecia. Eerst gevormde uredinia bovenzijdig, kastanjebruin, in kringen op scherp begrensde, ca 5 mm grote gele vlekken. De latere onderzijdig, nog geen halve mm, donkerbruin. Urediniospore2 met 2 poren, op de euqator. Telia donkerbruin; teliosporen 2-cellig, boven- en onderzijde afgerond, geen insnsoering, wand dicht-wrattig; steel afvallend, hyalien, 20 µm lang.

gall: No host plant alternation; no aecia. The uredinia that are formed first epiphyllous, chestntut brown, in circles on sharply delimited, c. 5 mm wide pale spots. The later ones hypophyllous, less than 0.5 mm, dark brown. Urediniospores with 2, equatorial pores. Telia dark brown; teliospores 2-cellen, rounded at top and bottom, not constricted, wall densely verrucose, pedicel deciduous, hyaline, 20 µm long.

waardplanten: Asteraceae, monofaag

hostplants: Asteraceae, monophagous

Rhaponticum centauroides, scariosum.

synoniemen: Puccinia grossii Font Quer, 1923.

synonyms: Puccinia grossii Font Quer, 1923.

literatuur:

references:

Brandenburger (1985a: 669), Buhr (1964b), Gäumann (1959a), González Fragoso (1924a), Klenke & Scholler (2015a).

29/12/2016