Abstract
We describe three new species of Fulvifomes from Thailand, all of which grow on Xylocarpus granatum, a major mangrove tree species in southeastern Asia. Fulvifomes xylocarpicola sp. nov. is characterized by the perennial and sessile basidiocarps, woody context without a distinct crust, pores 4-6/mm, a dimitic hyphal system both in the context and trama, broadly ellipsoid basidiospores measuring 4-5.5 x 3.5-4.5 mu m, and occurrence on the stem of X. granatum. Fulvifomes siamensis sp. nov. is characterized by the perennial and sessile basidiocarps, woody context without a crust, pores 7-8/mm, a monomitic hyphal system in the context, subglobose basidiospores measuring 4.5-6 x 4-5 mu m, and occurrence on the root or butt of X. granatum. Fulvifomes halophilus sp. nov. is characterized by perennial, sessile basidiocarps, leathery to corky context with a crust near the pileus surface, pores 5-8/mm, a subdimitic hyphal system in the context, subglobose basidiospores measuring 4-5.5 x 3.5-5 mu m, and occurrence on the root or butt of X. granatum. Fulvifomes mangrovicus comb. nov. is proposed for Fomes mangrovicus. A key to the worldwide species of Fulvifomes is provided. (C) 2014 The Mycological Society of Japan. Published by Elsevier B.V. All rights reserved.