Experimental Insights into Ex Situ Moss Conservation: A Case Study on Anacamptodon splachnoides

A rare and threatened pleurocarpous amblystegiaceaen dendrothelmatic moss, Anacamptodon splachnoides, was the subject of in vitro establishment and propagation. Tests on growth and rapid propagation were applied with the aim of preparing plant material for outdoor ex situ conservation and reintroduction into nature. This integrative conservation approach provides novel methodologies applicable to conservation programmes and management strategies, while also providing fundamental insights into the species’ biology. It further enables research on the species without harming its native populations, allowing for the exploration of questions raised during this investigation, such as spore biology and sex expression. A. splachnoides acts as both a shelter and signal species for a special microhabitat type, which also supports other rare organisms, and prolonged drought seems to affect reproduction, spore dispersal, and germinability more strongly than gametophore survival.