1880年Saccardo提出两个属名Pyricularia和Dactylaria;引起稻瘟病的真菌曾用过这两个属名。他首先也拼为Pyricularia,后来又改为Piricularia。1881年,Cavara第一个描述稻瘟病菌并定名为P.oryzae。1882年Briosi和Cavara再次发表相同的描述。一种寄生真菌No.188,如P.oryzaeSP.nov,同年在Cavara的著作中再次称为P.oryzae sp.nov。曾经在许多禾本科植物和非禾本科植物寄主上记述这个属名的许多种类。一些研究工作者认为应把他们拼为一种或少数几个种。另一些工作 In 1880 Saccardo proposed two genus names, Pyricularia and Dactylaria; the fungus that caused the blast had used both genus names. He was also spelled Pyricularia first and later Piricularia. In 1881, Cavara first described Magnaporthe grisea and was named P. oryzae. In 1882 Briosi and Cavara once again published the same description. A parasitic fungus No.188, such as P. oryzae SP. Nov, was again called P.oryzae sp. Nov in Cavara’s book the same year. Many species of this generic name have been described on the host of many grasses and non-grasses. Some researchers think they should be one or a few species. Some other work