Help with authority name in Puccinia

Alec McClay alec at ARC.AB.CA
Tue Nov 14 13:39:56 CST 2000

The rust attacking Canada thistle (Cirsium arvense) is listed in most of
the literature that I have seen as Puccinia punctiformis (Strauss) Roehl.
However in the CABI database of fungal names the authority is given as
Puccinia punctiformis Dietel & Holw. (1813). Can anyone tell me which is
Alec McClay
Research Scientist, Biological Control of Weeds

alec at           Alberta Research Council
Phone (780) 632-8207     Bag 4000, Vegreville
Fax   (780) 632-8612     Alberta T9C 1T4, Canada

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