Fusarium kyushuense sp. nov. from Japan

Four trichothecene-producing strains originally isolated from diseased wheat and a vinyl plate in Kyushu and Shikoku, Japan are described and illustrated as a new species, Fusarium kyushuense. This species does not produce chlamydospores, which is the key morphological character which distinguishes it from F. sporotrichioides with which it has been mistaken. Fusarium kyushuense is also differentiated from another morphologically similar species, F. arthrosporioides, by absence of sclerotia and by differences in conidiogenesis of obovate conidia. In F. arthrosporioides conidia are partly holoblastic from the aerial conidiophores and mostly phialidic from the sporodochial conidiophores, while in F. kyushuense conidia are mostly holoblastic and only produced from aerial conidiophores