Leptographium engelmannii, a synonym of Leptographium abietinum, and description of Leptographium hughesii sp.nov.

Leptagraphium abietinum occurs in North America on various members of the Pinaceae, especially spruce (Picea spp.), usually in association with bark beetles (Coleoptera: Scolytidae). It is characterized by noticeably curved, clavate conidia. All the isolates were from species of Pinaceae in North America except two isolates examined by Kendrick, originating from Parashorea plicata imported to England from Borneo and from Melia sp. imported into New Orleans,U.S.A. After examination of the isolate from Borneo and a similar isolate from Vietnam, we have concluded that these do not represent L. abietinum. They are described as a new species, Leptographium hughesii. Leptographium engelmannii, described from Engelmann spruce in Colorado, U.S.A., is indistinguishable from L abietinum and is considered a synonym of the latter species.