Tropical Marine Fungi*

Abstract.MarineAscomycetes, BasidiomycetesandDeuteromyceteswere collected in tropical and subtropical regions (Australia, Belize, Fiji, Hawaii, Marshall Islands, Mexico, New Zealand, Palau, Thailand), and the known range of distribution for these fungi was extended. Exclusively tropical are 27 taxa, 9 are probably restricted to the tropics also, and 11 are cosmopolitan. Distribution maps are given for 5 taxa. New species (4), varieties (3), and combinations (2) ofAscomycetesare proposed, and keys to the taxa ofHalosarpheiaandLulworthiaare presented. Most of the species are decomposers of mangrove parts or of detritus in sandy beaches. Nine new host plants were found. MarineAscomyceteswere discovered for the first time living in shells of foraminifera.