Current status of Asplenium sagittatum (Aspleniaceae) in the Maltese Islands

Abstract

Asplenium sagittatum is a rare, indigenous fern which was assumed extinct in the dated Maltese Red Data book until 2008 when a small number of individuals was rediscovered. New records of this fern are reported, including a large and important population located in the north of mainland Malta. For the first time, the anatomical characters of Maltese material are described and compared with those of material from central Europe. The paper also presents taxonomical clarifications dealing with A. scolopendrium, as also the results of a local Red List assessment for this endangered fern.