Puccinia

1.The ryegrass rust (Puccinia coronate) may infect many grasses, particulary ryegrass.

黑麦草冠病是由禾冠所致，除危害黑麦草外还可侵染多种禾本科牧草。

2.An example is Puccinia graminis, the stem rust of cereals and grasses, which overwinters on the barberry.

例如生活禾草上，引起麦类秆病的禾，必须蘗属植物上越冬。