Phellinus coronadensis: a new species from southern Arizona, USA

Abstract

Phellinus coronadensis is characterized and described morphologically as a new species from southern Arizona, USA. This fungus was previously reported as P. torulosus based on morphological similarities of the basidiomes and type of wood decay. However, P. coronadensis is restricted to two mountain ranges in southern Arizona and found almost exclusively on living southwestern white pine (Pinus strobiformis). Phellinus torulosus is found primarily in Europe and parts of Asia and is primarily associated with hardwood hosts. Based on sequence analysis of small subunit mitochondrial ribosomal DNA (mt-SSU), we determined that P. coronadensis is in a different lineage from P. torulosus and apparently more closely related to the P. pini complex. The taxon associated with southwestern white pine, being distinct and not yet having been validly named, is proposed as a new species here.

• Phellinus
• wood decay fungi

We are grateful to the following herbaria and individuals for providing specimens: BPI, CFMR, R. L. Gilbertson, L. Ryvarden, A. J. Masuke, and T. Hattori. We thank Karen Nakasone for assistance with the Latin diagnosis. This work was partially supported by cooperative agreement between the USDA Forest Products laboratory and DMR.