The coastal ferns Asplenium decurrens and Asplenium difforme (Aspleniaceae) on the south coast of New South Wales
- The occurrence of the coastal ferns Asplenium decurrens and Asplenium difforme (family Aspleniaceae) on the south coast of New South Wales are assessed and discussed. The Illawarra coast was the zone of overlap for these two coastal fern species and they reached their geographical limits in the Kiama area, with Asplenium decurrens reaching its northern limit of distribution and Asplenium difforme reaching its southern limit. All substantiated records of these ferns are documented and assessed. Both species require conservation consideration on the NSW south coast. For Asplenium decurrens the evidence suggests that New South Wales should follow Victoria and list this species as threatened under the Biodiversity Conservation Act 2016 (NSW). For Asplenium difforme local conservation action is needed at its most southern limit at Kiama.