New Zealand Journal of Botany abstracts

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Puccinia embergeriae sp. nov. on Chatham Islands sow thistle (Embergeria grandifolia) and a note on Miyagia pseudosphaeria on sow thistles (Sonchus spp.) in New Zealand

E. H. C. McKenzie
P. R. Johnston

New Zealand Fungal Herbarium
Landcare Research
Private Bag 92 170
Auckland, New Zealand

Abstract  A new rust fungus, Puccinia embergeriae sp. nov., on Embergeria grandifolia (Sonchus grandifolia) from the Chatham Islands, New Zealand, is described. It is compared with other rust fungi known on Sonchus spp. A recent upsurge of Miyagia pseudosphaeria on Sonchus spp. in New Zealand is discussed, and attributed to the possible introduction of a new pathogenic race of the rust.

Keywords  endangered rust fungus; rust fungi; Uredinales

B03040; Received 26 September 2003; accepted 4 March 2004; Online publication date 21 September 2004
New Zealand Journal of Botany, 2004, Vol. 42: 657-661
0028-825X/04/4204-0661 © The Royal Society of New Zealand 2004

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