PENICILLIUM TRICOLOR, A NEW MOLD SPECIES FROM CANADIAN WHEAT

A new Penicillium species, P. tricolor, morphologically similar to P. aurantiogriseum and allied species, was isolated from red spring wheat and durham wheat grains in Saskatchewan and Manitoba. Penicillium tri color is classified in Penicillium subg. Penicillium and is characteri zed by the following combination of diagnostic characters: tuberculate conidiophore stipes, greyish turquoise smooth conidia, orange-brown e xudate droplets and colony reverse, and production of the mycotoxins x anthomegnin, viomellein, vioxanthin, terrestric acid, and the alkaloid s rugulosuvine, leucyltryptophanyldiketopiperazine, verrucofortine, pu beruline, and asteltoxin.