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 Uredo karetu
BiostatusPresent in region - Indigenous. Endemic
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Caption: FIG. 115. Uredo karetu G.H. Cunn. Uredospores from Hierochloe redolens (Forst. f.) R.
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Article: Cunningham, G.H. (1924). The Uredinales, or rust-fungi, of New Zealand: supplement to Part 1; and Part 2. Transactions and Proceedings of the New Zealand Institute 55: 1-58 Wellington:.
Description: II. Uredosori hypophyllous, seated on dark-coloured spots visible on the upper surface, linear,
1 mm. long, seldom confluent, pulverulent, orange-yellow, surrounded by the ruptured
epidermis. Spores subglobose or obovate, 34-45 X 30-35 mmm.; epispore tinted yellow,
finely and moderately echinulate, 2-2-5 m. thick, cell-contents yellow, granular; germ-pores
scattered, numerous (8-12), obscure.
Notes: The host is indigenous, and is abundant in moist places throughout; it occurs also in Fuegia,
Tasmania, and Victoria. (Cheeseman, 1906, p. 855.) This rust is characterized by the large
size of the spores, thick, finely-echinulate epispore, and numerous scattered obscure germ-pores. Puccinia Hierochloae S. Ito, a species belonging to the P. coronata group on account
of the coronate apex of the teleutospores, differs in the uredospore stage from that described
above, the uredospores of this species being much smaller (16-27 X 12-18 mmm.). It was first
described from Japan by Ito (1909).
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