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Uromyces haumata (G.Cunn.) McKenzie & Padamsee 2024

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Uromyces haumata (G.Cunn.) McKenzie & Padamsee in McKenzie et al., New Zealand J. Bot. [electronic] [45] (2024)
Uromyces haumata (G.Cunn.) McKenzie & Padamsee 2024

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Endemic
Wild
New Zealand
Political Region

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McKenzie & Padamsee
G.Cunn.
(G.Cunn.) McKenzie & Padamsee
2024
[45]
ICN
species
Uromyces haumata

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haumata

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Hosts: Dauthonia Cunninghamii Hook. f. Base of Stocking Glacier, Mt. Cook, Canterbury, 1,000 m., 1/28. G.H.C. Tasman Moraine, Mt. Cook, Canterbury, 800 m., 1/28. G.H.C. Type. Danthonia flavescens Hook. f. Little Peel, Canterbury, 1,000 m., 1/28. G.H.C.
II. Uredosori hypophyllous, seated on discoloured spots visible on the upper surface, scattered and elliptical when up to 3 nun. long, or aggregated into linear series 1 cm: or more in length, pulverulent, pallid ferruginous brown, partly covered by the ruptured epidermis. Spores subglobose, or shortly elliptical, 36-42 x 32-36 mmm. ; epispore pallid chestnut-brown, 2 mmm. thick, moderately and finely verruculose; germ pores scattered, 7-11, obscure.
Both hosts are endemic and widely distributed (Cheesem. 1925, p. 172)
The spores are larger than those described by McAlpine (1906) for Uromyces Danthoniae from Australia, but otherwise show a general resemblance, especially in the numerous scattered germ pores. The species shows also a general resemblance to Uredo toetoe G. H. Cunn. on Arundo conspicua, but is separated by the much larger spores.
Campbell Island, boardwalk to Mt.Azimuth, on Chionochloa antarctica (Hook. f.) Zotov[Poaceae], March 14, 2000, E.H.C. McKenzie (PDD 73025– II).
Uromyces macnabbii is known only from New Zealand on several species of Chionochloa. This is the first record on C. antarctica.

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398e9307-08e8-42ce-96e8-53907f3a8497
scientific name
Names_Fungi
13 August 2024
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