Puccinia calcitrapae DC.    

Kingdom: Fungi
Phylum: Basidiomycota
Subphylum: Pucciniomycotina
Class: Pucciniomycetes
Order: Pucciniales

British distribution: Widespread, frequent.
World distribution: Europe, Asia, North America.

Puccinia calcitrapae on Cirsium hterophyllum

An autoecious rust on a number of species of thistle and allied plants in the family Asteraceae (Compositae). Shown here are the uredinia and telia on the underside of a leaf of Melancholy Thistle (Cirsium heterophyllum).

Puccinia calcitrapae on Cirsium hterophyllum
Puccinia calcitrapae: urediniospores and teliospores

Photographed material from Ballinluig, Perthshire, 1987.
For an explanation of the terms used in this account, go to the profile of the Pucciniales.

© A.J. Silverside
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