Aspleniaceae and Polypodiaceae from the coastal regions of Riau, Indonesia and their palynological study

The fern inventorization in the coastal area of Riau, Indonesia have never been reported. This study aimed to identify Aspleniaceae and Polypodiaceae species from the coastal region of Riau and examined their morphology and palynology. Samples were collected from the field using exploration method and were then prepared for palynologycal study. Spore observation was carried out using Scanning Electron Microcopy. A total of 7 species were identified in this study (3 Aspleniaceae species and 4 Polypodiaceae species), with 2 species are new record in the peridoflora checklist from Riau, i.e. Asplenium longissimum and Asplenium glaucophyllum. We observed monolete spore from all of the examined species.