Two additions to the fungi imperfecti.

On February 8, 1946, plant quarantine inspectors intercepted in the cargo of an American steamer from China a portion of a dried tuber of Colocasia esculenta. Although the material appeared to be in a state of advanced desiccation, the fungus on it grew readily when transferred to corn-meal and malt agars. On corn meal it produced circular to irregular colonies which were white and cottony, with growth which was not heavy or dense. Within a week the fungus fruited abundantly over the surface of the colony, producing at length long chains of conidia which in mass were "dark greenish olive" to "olivaceous black." 1 Conidia size, shape, and color in culture were identical with that observed on the original specimen. The fungus was tentatively determined as Dendryphium sp. An examination of the species of Dendryphium in the Mycological Collections of the Bureau of Plant Industry, Soils, and Agricultural Engineering revealed the presence of a culture of Dendryphiumtz sp. determined by V. K. Charles and A. E. Jenkins in 1920 which had been isolated from dead cotton roots in Texas by J. J. Taubenhaus. This specimen is identical with the fungus on Colocasia. A third collection of the fungus was made in April, 1946, on Irish potato tuber intercepted from Mexico. This hyphomycete is here described as new.