REINWARDTIA Vol 12, Part 5, pp: 339 – 342 339 NEPENTHES NAGA, A NEW SPECIES OF NEPENTHACEAE FROM BUKIT BARISAN OF SUMATRA Received July 10, 2007; accepted March 27, 2008. PITRA AKHRIADI Herbarium Universitas Andalas (ANDA), Biologi FMIPA UNAND Padang, Indonesia. E-mail: sumatrannepenthes@yahoo.com HERNAWATI Herbarium Universitas Andalas (ANDA), Biologi FMIPA UNAND Padang, Indonesia. ALFINDRA PRIMALDHI Division Nepenthes Indonesia, Malang, Indonesia. MUHAMMAD HAMBALI Division Nepenthes Indonesia, Malang, Indonesia. ABSTRACT AKHRIADI, P., HERNAWATI, PRIMALDHI, A. & HAMBALI, M. 2009. Nepenthes naga, a new species of Nepenthaceae from Bukit Barisan of Sumatra. Reinwardtia 12(5): 339 – 342. ⎯ A new species of Nepenthes from North Sumatra is described as Nepenthes naga Akhriadi, Hernawati, Primaldhi & Hambali. The key characters for this species are a triangular dichotomous appendage resembling a snake's tongue inserted sub-apically on the undersurface of the lid, and the undulate lid margin. Keywords: Nepenthes, Nepenthaceae, Sumatra, snake-tongue ABSTRAK AKHRIADI, P., HERNAWATI, PRIMALDHI, A. & HAMBALI, M. 2009. Nepenthes naga, sebuah jenis baru Nepenthaceae dari Bukit Barisan Sumatera. Reinwardtia 12(5): 339 – 342. ⎯ Sebuah jenis baru Nepenthes dari Sumatra Utara dipertelakan sebagai Nepenthes naga Akhriadi, Hernawati, Primaldhi & Hambali. Karakter kunci dari jenis ini adalah adanya apendiks bercabang dua yang menyegi-tiga menyerupai lidah ular yang muncul sebelum ujung dari permukaan bawah tutup kantong dan pinggir tutup kantong yang mengombak. Kata kunci: Nepenthes, Nepenthaceae, Sumatera, lidah ular INTRODUCTION The species of Nepenthes L. (Nepenthaceae) are popular plants with the unique character of pitchers that inserted from leaf apex through the tendril and are of interest to plant researchers, nurseries and hobbyists. In the last seven years about 10 new species of Nepenthes have been published especially from Sumatra and Kalimantan (Indonesian Borneo). Both of islands assumed as the mainland with the large number of Nepenthes species where some new species had been described continuously. During 2004 and 2007, five new species have been described from Sumatra and Borneo. From Borneo: N. chaniana Clarke, Lee & McPherson (2006), and from Sumatra N. flava Wistuba, Nerz & Fleischm. (2007), N. jamban Lee, Hernawati & Akhriadi (2006), N. lingulata Lee, Hernawati & Akhriadi (2006), and N. rigidifolia Akhriadi, Hernawati & Tamin (2004). Several Nepenthes experts have claimed that Sumatra is a hotspot of Nepenthes evolution (e.g. Wistuba et al., 2007). With 36 Nepenthes species described since Linnaeus in Sumatra, the island has become the island with the largest number of species, followed by Borneo with 34 species. Clarke and Lee (pers. comm.) also suggest that there are several new species yet to be found and described in Sumatra. One new species collected during an expedition by Indonesian Nepenthes hobbyists between March and July 2007, is here described: Nepenthes naga Akhriadi, Hernawati, Primaldhi & brought to you by CORE View metadata, citation and similar papers at core.ac.uk provided by E-Journal Portal - Research Center for Biology - Indonesian Institute of Sciences (LIPI) /...