| dc.description.abstract | This study aims to reveal the diversity, distribution, and morphological as
well as anatomical characteristics of the Pandanaceae family on Nias Island,
North Sumatra. The exploration results identified ten species of Pandanaceae
distributed across five administrative regions, occupying various habitats
including sandy coastal areas, coastal swamps, inland swamps, lowland forests,
and montane forests. Freycinetia angustifolia has the most restricted distribution,
occurring only in North Nias Regency and West Nias Regency. Environmental
factors such as high rainfall, air humidity, temperature, and soil characteristics
influence the presence of Pandanaceae species in the region. The observed
morphological characters include growth form, stem structure, leaves,
inflorescences, and fruits, while anatomical characters focus on stomatal type,
frequency, index, and size on both the adaxial and abaxial surfaces. The stomatal
types identified were anomocytic in most Pandanaceae species and tetracytic in
Freycinetia angustifolia. Variations in stomatal frequency, index, and size
indicate the influence of light intensity and habitat conditions on the physiological
adaptations of each species. The findings of this study provide essential baseline
information for conservation efforts, ecological understanding, and taxonomic
grouping of Pandanaceae on Nias Island. | en_US |
