Abstract
The moss flora of Zambales Mountain Range of Luzon Island, Philippines is updated based on recent and herbarium collections and is found to consist of 268 species in 126 genera. The Zambales collections yield Ectropothecium sp., a probable new species and six new records for the Philippine moss flora: Ectropothecium callichroides, E. filicaule, E. planulum, Neckeromnion calcutense, Papillidiopsis stissophylla, and Splachnobryum oorschotii. Likewise, Gammiella tonkinensis, Gymnostomiella longinervis, Leucobryum arfakianum, and Rhaphidostichum bunodicarpum are new records for Luzon Island. Additionally, the affinity of mosses in Zambales Mountain Range to other known floristically distinct areas and islands in the archipelago is discussed.