Six new taxa of Biscogniauxia are described from Taiwan, including four new
species: B. ambiens, B. cylindrispora, B. formosana, and B. latirima; and
two new varieties: B. albosticta var. orientalis and B. formosana var. kent
ingensis. Their cultural and anamorphic data are also provided. A descripti
on is provided for B, doidgeae based on its type. Cultural and anamorphic d
ata are given for B. philippinensis var. microspora. A key to the 57 known
species of Biscogniauxia in the world is also given.