A new moss checklist of Negara Brunei Darussalam

Abstract

A new moss checklist with updated nomenclature is given for the small country of Brunei Darussalam located in the northern part of Borneo. A total of 103 species in 50 genera are now collected and reported. The country's moss flora is still very much undercollected, judging from our present results: (i) the absence of cosmopolitan and common paleotropical species such as Bryum apiculatum Schwägr., Callicostella papillata (Mont.) Mitt., Funaria hygrometrica Hedw., lsopterygium minutirameum (Müll. Hal.) A. Jaegr., Octoblepharum albidum Hedw. and Philonotis hastata (Duby) Wijk and Margad.; (ii) the absence of widespread families such as Pottiaceae and Ditrichaceae; and (iii) the under-representation of speciose genera such as Ectropothecium, Macromitrium, Thuidium and Trichosteleum, with only one species collected. The incompleteness of our knowledge of the moss flora makes it impossible to assess the country's endangered moss species.