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on Adenostyles, Hasteola, Parasenecio

gall

the teliospsores are arranged like basalt columns, on top covered by a layer of a waxy substance. Initially they are one-celled, but in the end meiosis takes place, resulting in a chain of four haploid cells. Each one germinates under formation of a sterigma, on top of which eventually a spore will be formed (Mims & Richardson).

The uredinia and telia of Coleosporium species morphologically are indistinguishable. For pictures see for instance C. melampyri and >C. tussilaginis,

uredinia, telia

Asteraceae, oligophagous

Adenostyles alliariae, alpina & subsp. pyrenaica, leucophylla; Hasteola suaveolens; Parasenecio hastatus.

synonyms

Coleosporium tussilaginis f. sp. senecionis-silvaticae Boerema & Verhoeven, 1972.

references

Blumer (1946a), Brandenburger (1985a: 23), Gäumann (1959a), González-Fragoso (1925a), Helfer (2013), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kruse (2019a), Maier, Begerow, Weiß & Oberwinkler (2003a), Mims & Richardson (2005a), Pellicier (2001a), Poelt & Zwetko (1997a), Schmid-Heckel (1985a).