Liverworts (Marchantiophyta) of Ireng-ireng forest Bromo Tengger Semeru National Park, east Java Indonesia

Abstract

The liverwort diversity of Java Island totaled 480 species and was mainly dominated by specimens from West Java. However, exploration of this plant group was still insufficient in East Java. Ireng-ireng forest, a tropical mountain forest located in the Bromo Tengger Semeru National Park (BTS National Park) east Java Indonesia, is an area with a high potency of liverworts diversity. The aim of this research was to explore the liverwort diversity originating from the Ireng-ireng forest in BTS National Park. The study investigated liverworts across the elevation gradient of tropical mountain forests in the Ireng-ireng forest. A total of 24 liverwort species were identified, belonging to 18 genera and 11 families. The family with the highest number of species in the study area was Lejeuneaceae.