Cortinarius longistipitatus, a new species in subgenus Telamonia, section Cinnabarini, from Pakistan

Abstract

A new species of Cortinarius, C. longistipitatus, in subgenus Telamonia sect. Cinnabarini, is described and illustrated based on collections from northern Pakistan. The dark brown to blackish brown coloration of the pileus, the extraordinary long, equal to bulbous stipe, the red universal veil remnants on the stipe base and its occurrence in conifer forests make it a remarkably distinct species in the field. The internal transcribed spacer region (ITS) and large subunit (LSU) of the nuclear ribosomal RNA gene was amplified. The evolutionary relationship of the species was inferred by means of Maximum Likelihood phylogenetic analysis which revealed that C. longistipitatus is distinct from other Cortinarius species.