Gesasha (Halosphaeriales, Ascomycota), a new genus with three new species from the Gesashi mangroves in Japan

Authors: Abdel-Wahab, Mohamed A.; Nagahama, Takahiko

Source: Nova Hedwigia, Volume 92, Numbers 3-4, May 2011 , pp. 497-512(16)

Publisher: E. Schweizerbart'sche Verlagsbuchhandlung

Abstract:

A new genus, Gesasha Abdel-Wahab & Nagahama, and three new species therein are described and illustrated from Gesashi mangroves, Okinawa, Japan. Molecular phylogenetic analyses of the partial SSU and LSU rDNA placed the three new species into a clade distantly related to morphologically similar fungi with a high statistical support in the Halosphaeriales, Sordariomycetidae, Sordariomycetes, Ascomycota. The new genus is characterized by hyaline to light-brown, immersed to erumpent coriaceous ascomata, persistent asci with a thickened apical pore with a cytoplasmic retraction below the ascus apex and uni or bi-celled, globose to widely ellipsoidal ascospores with or without ephemeral, amorphous polar to sub-polar appendages.

Keywords: ANIPTODERA; HALOSARPHEIA; MARINE FUNGI; PHYLOGENETICS; SUBTROPICAL

Document Type: Research article

DOI: http://dx.doi.org/10.1127/0029-5035/2011/0092-0497

Publication date: 2011-05-01

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