1) Fungus genus 2) Genus puccinia 3) Type genus of the ceae 
Puccinia is a genus of fungi. All species in this genus are obligate plant pathogens and are known as rusts. The genus contains about 4000 species. Examples of Puccinia rusts and the diseases they cause: The rust species Puccinia obtegens has shown some promise for controlling Canada thistle, but it must be used in conjunction with other control m...
Puccinia is a genus of rust fungi, with numerous species.
[n] - type genus of the Pucciniaceae
genus Puccinia noun type genus of the Pucciniaceae; a large genus of parasitic fungi including many that are destructive to various economic plants