Lignicolous marine fungi from Yokosuka, Japan

Forty-eight fungi (34 Acomycota, 13 anamorphic fungi and one Basidiomycota) were collected from 141 driftwood samples collected from one sandy and one rocky beach around Yokosuka city in two seasons (summer and winter). Of these, 28 (58%) fungi are new records for Japan including 16 (33%) potentially new taxa. Thirty-six and 26 fungi were recorded from Hakkeijima and Umikaze beaches, respectively, in both seasons. Ceriosporopsis halima and Corollospora maritima were the dominant taxa at both locations. Common fungi include: Clavatospora bulbosa, Corollospora portsaidica, Lignincola laevis and Naufragella spinibarbata. Fungi recorded from the two beaches were markedly different, with only 14 species common to both sites. Members of the order Halosphaeriales with 30 species (representing 62.5% of the fungi) were the dominant mycota at the two sites. Anamorphic fungi included eight hyphomycetes and one coelomycete, a Phoma species. Potentially new species were sequenced (partial LSU and SSU rDNA) to determine their identity.