, a new caricicolous rust fungus producing spermogonial and aecial stages on in Japan.

, a new species of caricicolous rust fungus was described based on morphological characteristics and nuclear rDNA sequences from Japan. The heteroecious life cycle of was elucidated via field observations, inoculation experiments and molecular analyses. This rust fungus produces uredinial and telial stages on and spermogonial and aecial stages on .