canopy. N. ovata × N. rhombicaulis has also been recorded from the mountain. In addition, Bruce Salmon and Ricky Maulder found N. mikei × N. ovata and N. gymnamphora × N. ovata on Mount Pangulubao. Some authors consider N. xiphioides to be distinct from N. gymnamphora and so this hybrid is sometimes listed as N. ovata × N. xiphioides. Andreas Wistuba observed several natural hybrids with N. flava, including N. flava × N. ovata. Most specimens were juvenile rosette plants. Notes a.The original Latin description reads: Folia mediocria, sessilia. lamina angusta lanceolata, spathulata, apicemversus acuminata. Bass subcordata semiamplexicaulis. Vagina O. Ascidia rosularum ovato conica, alis 2 fimbriatis, peristomio operculum versus elevato acuminato expanso 15-40 mm lath, coatis 0,5-1,5 mm distantibus, dentibus 5x longioribus quam latis. Operculo cordato-ovato, facie inferiore prope basin apendice lateraliter applanata obsito. Ascidia superiora magnitudine mediocria infundibuliformia, costis 2 prominentibus. Peristomio operculum versus acuminato in collum breve elongato, applanato, antice 2-5 mm, operculum versus 5-20 mmlato. Costis distantibus 0,5 -1 mm, dentibus 5 x longioribus quam latis. Operculo cordato-ovato, facie inferiore prope basin apendice lateraliter applanata obsito. Inflorescentia racemus longus, pedicellis inferioribus 10-15 mm longis, fere omnibus 2-floris. Indumentum in partibus vegetativis parcissimum. References Bauer, U., C.J. Clemente, T. Renner & W. Federle 2012. Form follows function: morphological diversification and alternative trapping strategies in carnivorous Nepenthes pitcher plants. Journal of Evolutionary Biology 25(1): 90–102. Hernawati & P. Akhriadi 2006. A Field Guide to the Nepenthes of Sumatra. PILI-NGO Movement, Bogor. Meimberg, H., A. Wistuba, P. Dittrich & G. Heubl 2001. Molecular phylogeny of Nepenthaceae based on cladistic analysis of plastid trnK intron sequence data. Plant Biology 3(2): 164–175. Meimberg, H. 2002. Ph.D. thesis, Ludwig Maximilian University of Munich, Munich. Meimberg, H. & G. Heubl 2006. Introduction of a nuclear marker for phylogenetic analysis of Nepenthaceae. Plant Biology 8(6): 831–840. External links Nepenthes ovata in its natural habitat Carnivorous plants of Asia ovata Plants described in 1994