Abstract
Irpex, one of the most common polypore genera, is easily identified by macro- and microscopic characters. During field trips to Korea's Kangwon Province, some Irpex specimens with conspicuous morphological differences from I. lacteus were collected. Cultural characters and molecular evidence differentiated this new strain from I. lacteus, and this taxon is proposed as I. hydnoides sp. nov.
This work was supported by Korea Research Foundation Grant (KRF-2000-DP0413) for the Systematic Study of Corticioid Fungi. Young Woon Lim was supported by the BK21 Research Fellowship from the Ministry of Education and Human Resources Development until he graduated from the School of Biological Sciences, Seoul National University. We also are grateful to Dr. Jacques Mugnier (Rhône-Poulenc, France) for the kind donation of ITS sequences, Dr. David Hibbett (Clark University, MA, U.S.A.) for reading the manuscript and providing helpful suggestions and to Dr. Ronald Petersen (The University of Tennessee, TN, U.S.A.) for helping with the Latin.