Species richness of bryophytes at Khao Ngon Nak, Krabi Province

Abstract

The investigation of bryophytes at Khao Ngon Nak mountain, Hat Noppharat Thara - Mu Ko Phi Phi National Park, Krabi Province, was carried out from March 2018 to October 2019. Bryophyte specimens were collected from various forest types and microhabitats. The life-forms of bryophytes were noted. In total, 145 species 2 subspecies 4 varieties in 55 genera and 19 families of bryophytes were recognized. Among these, 88 species in 31 genera and 9 families were liverworts, while 57 species 2 subspecies 4 varieties in 24 genera and 10 families were mosses. The most common family of liverworts was Lejeuneaceae, whereas Calymperaceae was the richest family of mosses. In addition, Acromastigum echinatum (Gottsche) A. Evans, A. inaequilaterum (Lehm. & Lindenb.) A. Evans, Cololejeunea pseudostipulata Schiffn.,  Pycnolejeunea cavistipula (Steph.) Mizut. and Riccardia baumannii Hürl. were reported as new recorded species of liverworts for Thailand. In the present study, most bryophytes were corticolous species growing on tree trunks. Five life forms of bryophytes were found, namely: mats, turfs, wefts, cushions and fans. The most common type was mats.