Abstract
Nepenthes spp. is a typical plant of Southeast Asia especially Indonesia which has a special leaf modification called a pitcher. The largest number of Nepenthes spp. species in Indonesia is on the island of Sumatra. The purpose of this reseach was to identify and analyze cluster Nepenthes spp. from South Sumatra based on morphological characteristics. The specimens were collected from the forest of Tekorejo Village, Air Itam Village and cultivation location in Palembang city of South Sumatra. Identification of morphological characters performed on the characteristics of root, stem, leaves, and pitcher. The morphological data is used for cluster analysis using NTSYS software version 2.02. The identification results showed 9 variants of Nepenthes spp. which belong to the species N. mirabilis, N. gracilis, and N. sumatrana. Dendogram analysis results form two main clusters with a similarity value of 22%. The first cluster consists of N. mirabilis and N. sumatrana. The second cluster consists of N. gracilis. Based on the results of this study can be concluded that the species Nepenthes spp. South Sumatra is N. mirabilis, N. gracilis, and N. sumatrana. The results of this study will be dedicated to updating information about the existence of Nepenthes spp. from South Sumatra and his cluster.
Highlights
Indonesia is a country that has richness and distinctiveness of biodiversity
A total of 9 variants Nepenthes spp.found in Tekorejo Village (TR), Air Itam Village (AI), and cultivation location in Palembang city (BP) of South Sumatera
The results of this study indicate the separation between groups of species N. mirabilis, N. gracilis, and N. sumatrana
Summary
Indonesia is a country that has richness and distinctiveness of biodiversity. The biodiversity consists of food crops, ornamental plants, vegetables, medicinal plants, and others. The variety of character possessed by a plant shows variations that can be explored and studied more deeply (IBSAP, 2015) Some of these plant species are stored in forest areas in South Sumatra province. Nepenthes spp. known as carnivorous plants (Anniwat et al, 2009) originating from the Nepenthaceae family (Bunawan et al, 2017) This plant has a special leaf modification called a pitcher with varying shapes, sizes, and shades of color (Buch, et al, 2015). Along with the threat of extinction of Nepenthes spp. in South Sumatra, the diversity and grouping of Nepenthes spp. which can survive to be known before the ongoing species extinction. This diversity and grouping can be determined by morphological characteristics. This study is useful to provide information on the species of Nepenthes spp. and its grouping in South Sumatra follows the morphological character
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