Puccinia phyllostachydis, Kusano, the bamboo rust, a fungus species of the genus Puccinia
Chrysanthemum white rust is a disease of plants caused by the fungus Puccinia horiana that infects species of the genus Chrysanthemum.
There are numerous strains of the Puccinia psidii rust—some known to be established in Florida, and at least one reported from California and there is concern that strains may exist or develop that could be devastating to ohia (Metrosideros polymorpha), one of Hawaii's dominant native trees, a foundation species for many remaining Hawaiian native ecosystems.
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However currently, the major threat of Puccinia in Hawaii is the massive damage it is doing to Eugenia koolauensis, a federally listed endangered species.
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Puccinia psidii is a rust (a type of plant pathogen) native to Brazil with a very broad host range in the myrtle family (Myrtaceae).