closely allied to the extremely polymorphic N. maxima, which is widespread across Sulawesi, New Guinea, and the Maluku Islands. It differs from this species in its wingless, infundibular and relatively small upper pitchers, ovate lower pitchers, and hastate lid. While some forms of N. maxima also produce entirely infundibular aerial traps, these are not usually as abruptly contracted (and therefore wine glass-shaped) as in N. eymae, and may or may not have fringed wings. Where the two species grow side-by-side, introgression may blur these morphological boundaries and make circumscription difficult. Like N. eymae, N. maxima and N. klossii (another closely related species) also commonly have two lid appendages. Nepenthes fusca of Borneo may produce aerial pitchers resembling those of N. eymae, although its lower pitchers are considerably narrower and cylindrical in shape. The lower pitchers of N. eymae could potentially be confused with those of another Bornean endemic, N. veitchii, although otherwise these species have little in common, particularly with respect to the upper pitchers. Notes a.Jan Schlauer's Carnivorous Plant Database lists the specimen number as 83140a and the collection date as September 29, 1983. b.Other published specimens of N. eymae include Lack & Grimes 1786 (includes a climbing stem with an upper pitcher) and Cheek s.n. (includes a lower pitcher). Both of these specimens, along with Eyma 3968, are illustrated in a line drawing by Camilla Speight in Martin Cheek and Matthew Jebb's 2001 monograph, "Nepenthaceae". References Further reading Mansur, M. 2001. Koleksi Nepenthes di Herbarium Bogoriense: prospeknya sebagai tanaman hias. In: Prosiding Seminar Hari Cinta Puspa dan Satwa Nasional. Lembaga Ilmu Pengetahuan Indonesia, Bogor. pp. 244–253. McPherson, S.R. & A. Robinson 2012. Field Guide to the Pitcher Plants of Sulawesi. Redfern Natural History Productions, Poole. 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. Molekular-systematische Untersuchungen an den Familien Nepenthaceae und Ancistrocladaceae sowie verwandter Taxa aus der Unterklasse Caryophyllidae s. l.. 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. Meimberg, H., S. Thalhammer, A. Brachmann & G. Heubl 2006. Comparative analysis of a translocated copy of the trnK intron in carnivorous family Nepenthaceae. Molecular Phylogenetics and Evolution 39(2): 478–490. Oikawa, T. 1992. Nepenthes eymae Kurata. In: