List of Nepenthes species from the Philippines

Nepenthaceae

Edited by Pieter B. Pelser, 22 November 2016

1. Nepenthes abalata Jebb & Cheek, Nordic Journal of Botany 31 (2013) 153; --Type: McGregor 32313 (holo: US, iso: B, K, PNH), Panay, Antique Prov., Marilison
   ( =Mararison) Island. --Nepenthes blancoi Blume sensu Macfarl. in Engl., Pflanzenreich 36 (1908) 40, PJS 33 (1927) 129. PANAY: Antique (Marasison Isl.), PALAWAN (Cuyo Isl., Culion Isl.). 
2. Nepenthes abgracilis Jebb & Cheek, Phytotaxa 151 (2013) 29; --Type: Ramos & Pascasioin BS 34501B, (UC, holo; K, photo), Mindanao: Surigao Province, Apr-1919. MINDANAO: Surigao. Forested submontane ridges, probably ultramafic, 670 m a.s.l. (Cheek & Jebb, 2013).
3. Nepenthes aenigma Nuytemans,W.Suarez & Calaramo, Plants 5 (2016) 23; --Type: M. Calaramo 2288 (HNUL, holo & iso), Luzon: Ilocos Norte. LUZON: Ilocos Norte. Conservation status: DD (Gronemeyer et al. 2016). 
4. Nepenthes alata Blanco, Fl. Filip. (1837) 805; --Merr., EPFP 2 (1923) 214; --Macfarl., PJS 33 (1927)  136; --Neotype: Fenix BS 26726 (US, photo, K, neo; 
   BO, SING, isoneo), Luzon: Ilocos Norte, Burgos, male fl . 23 – 25 Nov 1916. --Nepenthes brachycarpa Merr., PJS 10 c (1915) Bot. 306; --Type: Merrill 9588 (L, NY, iso), Palawan: Silanga, May 1913. --Nepenthes blancoi Blume, Ann. Mus. Bot. Lugd.-Bat. 2 (1852) 10; --Type: Williams 1012 (US, K, PNH, neo; PNH destroyed, NY, isoneo), Luzon: Benguet, Trinidad; Note by Pelser (11-May-13): it can be questioned if the neotype is conspecific with Blanco's plant, because Blanco's description was very brief and general and the neotype was selected from a different area than that mentioned by Blanco (Agoo, Pangasinan). LUZON (mainly north of Manila, Cordillera Central): Benguet, Bontoc, Ilocos Norte, Nueva Viczcaya, Mountain prov., Ifugao, Zambales (Mt Pinatubo), Quezon (Sierra Madre, San Luis). 
5. Nepenthes alzapan Jebb & Cheek, Phytotaxa 100 (2013) 59; --Type: Ramos & Edanõ 45690 (holo, K; iso, NY, UC, US), Luzon, Tayabas Prov., Mt Alzapan, malefl. 7 June 1925. LUZON: Tayabas (Mt. Alzapan). Submontane mossy forest, 1800 m a.s.l. Only known from the types (four sheets), representing three individual plants at most. Possibly extinct.
6. Nepenthes argentii Jebb & Cheek, Blumea 42 (1997) 19; Fl. Males. ser. 1, 15 (2001) 34, Fig.1; --Type: Argent & Reynoso 89119 (K, holo; iso PNH), Sibuyan: Mt Giting-giting, above Magdiwang on ridge leading to Mayo’s Peak, 1400m, 27-Aug-1989. SIBUYAN (Mt Guiting-guiting). Subalpine shrubbery with smooth wind-clipped canopy 30cm tall on a ridge of ultramafic rocks, 1400m. 
7. Nepenthes armin Jebb & Cheek, Blumea 59 (2014) 147; --Type: Argent & Reynoso 8936 (K, holo; E, PNH, iso), Sibuyan: Magdiwang, 16-Aug-1989. Endemic to the Philippines. SIBUYAN. Critically Endangered (D), Cheek & Jebb (2014).
8. Nepenthes attenboroughii AS Robinson, S McPherson, VB Heinrich, Bot. J. Linn. Soc. 159(2) (2009) 196, Fig. 1-2, map; --Type: A. Robinson AR001 (PPC, holo), PALAWAN: Mt Victoria. On granular, inorganic, ultramafic substrates at 1650 m. 
9. Nepenthes barcelonae Tandang & Cheek, Phytotaxa 222 (2015) 146; --Type: Tandang 1727 with Pelser & Barcelona (PNH, holo; K, iso), Luzon: Sierra Madre Mountain range, Aurora Province, 22-Feb-2014. Endemic to the Philippines. LUZON: Aurora. 
10. Nepenthes bellii Kondo, Bull. Torrey Bot. Club 96 (1969) 653; --M Jebb & Cheek, Fl. Males. ser. 1,  15 (2001) 38, Fig. 3; --Type: Kondo 11514 (NCU, holo; iso KC, Nagoya, n.v.), Mindanao: Surigao  del Norte prov., between Jayanggabon & Carrascal, 800m, 14-Apr-1968. --Nepenthes globamphora S Kurata & Toyoshima, Gard.Bull. Sing. 26 (1972) 155, t. 1, Fig. 1; --Type: S Kurata & M Toyoshima 1128 (Nippon Dental College, holo), Mindanao: Surigao del Sur prov., Mt  Legaspi, E slope, 22-Aug-1965. DINAGAT (photos by Danilo Tandang), MINDANAO: Surigao del Norte, Surigao del Sur. Marshy forests, possibly on ultramafic substrate, 250-800m. 
11. Nepenthes burkei Mast., Gard. Chron. 3, 6 (1889) 492, 566, Fig. 69; --Merr., EPFP 2 (1923) 214;  --Macfarl., PJS 33 (1927) 134; --Sh. Kurata & Toyoshima, Gard. Bull. Sing. 26 (1972) 155; --M  Jebb & Cheek, Blumea 42 (1997) 28; Fl. Males. ser. 1, 15 (2001) 47; --Type: J Veitch & Sons, sn  (K, lecto) cultivated from material collected by David Burke from Mindoro. --Nepenthes burkei var. excellens Marshall, J. Roy. Hort. Soc.12: (1890) cxiv. --Nepenthes burkei var. prolifica Mast., Gard. Chron. 3. ser.8 (1890) 184. MINDORO: Mindoro Oriental (Mt Halcon), PANAY: Antique (Mt Madia-as). Mossy forests, 1000-1600m. 
12. Nepenthes ceciliae Gronem., Coritico, Micheler, Marwinski, Acil & V.B.Amoroso, New Nepenthes 1 (2011) 413; --Type: F.Coritico & V.Amoroso s.n. (CMUH 00007378, holo), Mindanao, Bukidnon, Mount Kiamo, trail from Barangay Kibalabag (Malaybalay City), 16-May-2011. MINDANAO.
13. Nepenthes cid Jebb & Cheek, Phytotaxa 151 (2013) 30; --Type: Cid 8 (L, holo; K, photo; PNH, iso), Mindanao: Bukidnon, Dalvangan, 26-Dec-1952. MINDANAO: Bukidnon.
14. Nepenthes copelandii Merr. ex Macfarl. in Engl., Pflanzenreich 36 (1908) 51; PJS 33 (1927) 131; --Merr., EPFP 2 (1923) 214; --Type: Copeland 1033 (US), Mindanao: Davao, Mt Apo, Apr 1904. CAMIGUIN, MINDANAO: Davao del Sur (Mt Apo), epiphytic at elevations from 2500-3000 m. Lower pitchers similar to N. alata though comparatively more elongated, upper pitchers strongly infundibular; also differing from it by its epiphytic habit. 
15. Nepenthes cornuta Marwinski, Coritico, Wistuba, Micheler, Gronem., Gieray & V.B.Amoroso, Plants 3 (2014) 289; --Type: T. Gronemeyer & F. Coritico s.n. (CMUH00008547, holo), Mindanao: Bukidnon, Pantaron mountain range, Malaybalay City, Brgy. St. Peter, 15-Aug-2012. MINDANAO: Bukidnon.
16. Nepenthes deaniana Macfarl. in Engl., Pflanzenreich 36 (1908) 57; --Merr., EPFP 2 (1923) 215; --Macfarl., PJS 33 (1927) 134; --Type: FB 3891 Curran (PNH, holo, destroyed), Palawan: Mt Pulgar  summit, 1300m. PALAWAN (Mt Pulgar; Cabatuan River). Reportedly very common at the 1300 m summit of Mt Pulgar. Holo destroyed at PNH in February 1945, and according to Jebb & Cheek (2001) no extant replicate has been found. This species belongs to the N. villosa group but is immediately distinguished from the Philippine (Palawan) representatives (N. mantalingajanensis and N. mira) by its non-climbing habit, glabrous stems which spread by shoots, much smaller pitchers, relatively narrower peristomes and one-flowered pedicels.
17. Nepenthes extincta Jebb & Cheek, European Journal of Taxonomy 69 (2013) 14; --Type: Fumihiro Konta 12365 (BISH, holo), Mindanao: boundary of Surigao del Sur and Surigao del Norte, Red Hills, SE of Claver, near the northeastern coast, 8-Aug-1978. MINDANAO: boudcary of Surigao del Sur & Surigao del Norte.
18. Nepenthes gantungensis S. McPherson, Cervancia, Chi C. Lee, Jaunzems, Mey & A.S. Rob. -- Carniv. Pl. Hab. 2: 1286 (-1295; figs. 750-758). 2010. PALAWAN: Mt. Gantung, 1600-1784 m.
19. Nepenthes graciliflora Elmer, LPB 4 (1912) 1494; --Lectotype: Elmer 12465 (K, lecto; B, BO, E, MO, NY, U, US, W, iso), Sibuyan: Mt Giting-giting, along Pauala river bottom on sand-gravelly soil, 1000ft, May-1910. LUZON: mainly south of Manila, Zambales, Quezon, Laguna (Mt Makiling), Sorsogon, MINDORO, SIBUYAN, PANAY, SAMAR, LEYTE, BOHOL, MINDANAO. Mossy, submontane forest, (300–)800–1280 m. 
20. Nepenthes hamiguitanensis Gronem., Wistuba, V.B.Heinrich, S.McPherson, Mey & V.B.Amoroso, Carniv. Pl. Hab. 2: 1296 (-1305; figs. 759-766). 2010. MINDANAO (Mt. Hamiguitan, Davao Oriental), terrestrial in partly shaded localities from 1200-1600 m; --Type: V.Amoroso & R.Aspiras CMUH00006494. A stabilized natural hybrid of N. micramphora and N. peltata. 
21. Nepenthes justinae Gronem.,Wistuba, Mey, V.B.Amoroso, Plants 5 (2016) 23; --Type: V.B. Amoroso s.n. (CMUH00003606, holo), Mindanao: Davao Oriental, Mt Hamiguitan. MINDANAO: Davao Oriental. Conservation status: VU (Gronemeyer et al. 2016).
22. Nepenthes kitanglad Jebb & Cheek, European Journal of Taxonomy 69 (2013) 10; --Type: Gaerlan, Sagcal & Fernando PPI 3274 (BISH, holo; BRIT, iso), Mindanao: Bukidnon, Intavas, Impasug-ong, Mt Kitanglad, 18-Jul-1991. MINDANAO: Bukidnon.
23. Nepenthes leonardoi McPherson, S., G. Bourke, A. Fleischmann, A. Robinson & M. Jaunzems. Carniflora Australis 8(1):4-9, 2011.
24. Nepenthes leyte Jebb & Cheek, European Journal of Taxonomy 69 (2013) 17; --Type: Argent, Mendum, Fuentes, R., Belonias, B.S. 99214 (K, holo; E, PNH, iso), Leyte: Mt Lobi, near Dagami, 7-Nov-1999. LEYTE.
25. Nepenthes mantalingajanensis J. Nerz & A Wistuba, Das Taublatt 55(3) (2007) 17-25. PALAWAN (Mt Mantalingahan). On ultramafic soils. Separated from N. mira in the size, shape and absence of indumentum on the pitchers, the operculum that is as wide as the mouth, and the extreme rarity (total absence?) of upper pitchers (both lower and upper pitchers are produced at the same time in mature plants of N. mira). 
26. Nepenthes  merrilliana Macfarl., Contr. Bot. Lab. Univ. Penn. 3 (1911) 207, t. 1; --Merr., EPFP 2 (1923) 215; --Macfarl., PJS 33 (1927) 132; --Sh. Kurata & Toyoshima, Gard. Bull. Sing. 26 (1972) 152; --M Jebb & Cheek, Blumea 42 (1997) 62; Fl. Males. ser. 1, 15 (2001) 99; --Type: FB 7545 Hutchinson (PNH, n.v.), Dinagat, altitude 20m, May 1907. --Nepenthes merrillii Elmer, LPB 8 (1915) 2787, sphalm. MINDANAO: Agusan del Norte (Mt Urdaneta), Surigao, DINAGAT. Forests, steep slopes near the coast. Apparently restricted to ultramafics, sometimes epiphytic. 
27. Nepenthes micramphora VB Heinrich, S McPherson, T Gronemeyer & VB Amoroso, Pitcher plants of the old world, 2009. MINDANAO: Davao Oriental (Mt Hamiguitan). In ultramafic substrates. 
28. Nepenthes mindanaoensis Sh. Kurata, J. Insectivorous Plant Soc. 52 (2001) 32, Fig. 2, back cover, Fig. 5-7; --Type: Y Mino 6838 (Nippon Dental College), Mindanao: Surigao del Sur prov., Mt Carrascal, altitude 200-300m, 6 Aug 1999. --Nepenthes alata var. ecristata Macfarl. in Engl., Pflanzenreich 36 (1908) 72; --Merr., EPFP 2 (1923) 214. MINDANAO: Surigao del Sur. Open scrub on ultramafics, abundant on lateritic soil, altitude 200-300m. Separated from N. alata by the long, rather stiff indumentum on the younger leaves, the pitcher lids which possess very poorly developed to non-existent median keels nor basal appendages, and the dimorphic lid glands. 
29. Nepenthes mira M Jebb & Cheek, Kew Bull. 53 (1998) 966; 54 (1999) 891, Fig. 893; Fl. Males. ser. 1, 15 (2001) 102, Fig. 13; --Type: Argent & al. 25438 (K, holo; iso in E, PNH), Palawan: Cleopatra’s Needle, 22 Jan 1998. PALAWAN (Cleopatra’s Needle). Submontane forest and grassland on sandstone, altitude c. 1580m. 
30. Nepenthes mirabilis (Lour.) Druce, Rep. Exch. Cl. Br. Isl. (1916) 637; --Merr., Interpret. Herb. Amboin. (1917) 242; EPFP 2 (1923) 215; --Danser, Bull. Jard. Bot. Buitenz. ser. 3, 9 (1928) 330; --Sh. Kurata, Nepenthes of Mt Kinabalu, Sabah (1976) 56; --M Jebb & Cheek, Blumea 42 (1997) 63; Fl. Males. ser. 1, 15 (2001) 105; --Phyllamphora mirabilis Lour., Fl. Cochinch. (1790) 606; --Nepenthes phyllamphora Willd., Sp. Pl. 4 (1805) 874; --Macfarl., PJS 33 (1927) 135; --Type from Vietnam. Andaman Isls, S China, Taiwan, Thailand, Laos, Cambodia, Vietnam, Sumatra, Peninsular Malaysia, Singapore, Java, Borneo (Sarawak, Brunei, Sabah, Kalimantan), Philippines, Sulawesi, Moluccas (Halmahera, Seram, Ambon, Obi Isls), New Guinea; Louisiade Archipelago, Palau Isls, Australia (Queensland). MINDANAO: Zamboanga, Lanao del Sur (Camp Keithley), Surigao. Swamps and forests, near sea-level to 900m. 
31. Nepenthes mirabilis X N. alata Sh. Kurata & Toyoshima, a natural hybrid. Gard. Bull. Sing. 26 (1972) 157; --Type: Kurata 1111-a (Nippon Dental College, n.v.), Mindanao: Surigao del Sur prov., on a river side near Carrascal Bay, 20m, 9-Aug-1965.
32. Nepenthes nebularum Mansell & Suarez, Carnivorous Plants Newsletter 45 (2016) 133; --Type: Mansell NEB14, ex cult. (BRI AQ522212, holo), Mindanao: 1-Jul-2016. Endemic to the Philippines. MINDANAO: Davao Oriental (Mt Mayo).
33. Nepenthes negros Jebb & Cheek, Nordic Journal of Botany 31 (2013) 619: nom. et stat. nov. for Nepenthes alata var. biflora Macfarl. in Engl., Pflanzenreich 36 (1908) 72; --Merr., EPFP 2 (1923) 214; --Type: Whitford 1537 (according to Jebb & Cheek 2013) or 1723 (according to L.L.Co) (PH, holo; K, iso), Negros: Negros Occidental prov., Mt Silay, May 1906. BILIRAN, NEGROS. Submontane forest, 1350 m a.s.l. 
34. Nepenthes palawanensis McPherson, S., J. Cervancia, C. Lee, M. Jaunzems, A. Fleischmann, F. Mey, E. Gironella & A. Robinson, Carnivorous Plants and their Habitats. Volume 2., 2010. PALAWAN (Sultan Peak), 1100-1236 m
35. Nepenthes pantaronensis Gieray, Gronem., Wistuba, Marwinski, Micheler, Coritico & V.B. Amoroso, Plants 3 (2014) 286; --Type: T. Gronemeyer & F. Coritico s.n. (CMUH00008625, holo), Mindanao: Bukidnon, Pantaron mountain range, Malaybalay City, Brgy. St. Peter, 15-Aug-2012. MINDANAO: Bukidnon.
36. Nepenthes peltata Sh. Kurata, J. Insectivorous Plant Soc. 59(1) (2008) 12-17. MINDANAO: Davao Oriental (Mt Hamiguitan), on ultramafic substrates. 
37. Nepenthes petiolata Danser, Bull. Jard. Bot. Buitenz. ser.3, 9 (1928) 353, Fig. 18; --Sh. Kurata & Toyoshima, Gard. Bull. Sing. 26 (1972) 158; --M Jebb & Cheek, Blumea 42 (1997) 74; Fl. Males. ser. 1, 15 (2001) 120; --Type: Elmer 13705-b (BO, holo), Mindanao: Agusan del Norte prov., Mt Urdaneta, trail from Lake Danao to Masay summit, Sept 1912. MINDANAO: Agusan del Norte (Mt Urdaneta), Surigao del Sur. Montane or submontane forest including Agathis and oak, possibly on ultramafic soil in Surigao, altitude 1500-1600m. 
38. Nepenthes petiolata X N. alata Sh. Kurata & Toyoshima, a natural hybrid. Gard. Bull. Sing 26 (1972) 158; -- Jebb & Cheek, Fl. Males. ser. 1, 15 (2001) 120; --Type: Kurata 1113-a (Nippon Dental College, n.v.), Mindanao: Surigao del Sur prov., Mt Legaspi, E slope, 19 Aug. 1965. --Nepenthes petiolata x N truncata Sh. Kurata & Toyoshima, Gard. Bull. Sing 26 (1972) 158; --Jebb & Cheek, Fl. Males. ser. 1, 15 (2001) 121; --Type: Kurata 1109-a (Nippon Dental College, n.v.), Mindanao: Surigao del Sur prov., Mt Legaspi, E slope, altitude 270m, 19 Aug 1965.
39. Nepenthes philippinensis Macfarl. in Engl., Pflanzenreich 36 (1908) 43; --Merr., EPFP 2 (1923) 215, excl. syn. N. brachycarpa; --Macfarl., PJS 33 (1927) 130; --M Jebb & Cheek, Blumea 54 (1999) 888, Fig. 1; Fl. Males. ser. 1, 15 (2001) 121, Fig. 15; --Type: Curran 3896 (K, lecto), Palawan: Mt Pulgar. --Nepenthes wilkiei M Jebb & Cheek, Kew Bull. 53 (1998) 966; --Type: Mendum et al. 25545 (K, holo; iso in E, PNH), Palawan. PALAWAN (Mt. Pulgar (=Thumb Peak); Victoria Mtns), on scrub over ultramafic soils, altitude 25-1600m. 
40. Nepenthes pulchra Gronem., S.McPherson, Coritico, Micheler, Marwinski & V.B.Amoroso, New Nepenthes 1 (2011) 425; --Type: T.Gronemeyer & F.Coritico s.n. (CMUH 00007379 , holo), Mindanao, Bukidnon, Mount Kiamo, trail from Barangay Kibalabag (Malaybalay City), 16-Aug-2011. MINDANAO.
41. Nepenthes ramos Jebb & Cheek, Willdenowia 43 (2013) 108; --Type: Ramos & Pascasio 34500 (K, holo; AA, PH, US; iso), Mindanao, Surigao, Apr-1919. --Nepenthes kurata Jebb & Cheek, European Journal of Taxonomy 69 (2013) 6; --Type: Mearns & Hutchinson FB 4632 (K, holo; PH, iso), Mindanao: Misamis Occidental, Mt. Malindang, May-1906. CAMIGUIN, MINDANAO: Misamis Occidental, Surigao del Norte. Conservation status: NT (Gronemeyer et al. 2016).
42. Nepenthes robcantleyi Cheek, Nordic J. Bot. 29 (2011) 678; --Type: Cheek 15877 (K, holo; PNH: iso), Mindanao. MINDANAO. 
43. Nepenthes samar Jebb & Cheek, Blumea, 58 (2013) 82; --Type: Gaerlan & Chavez PPI 26416 (BRIT, holo; PNH, iso), Samar. SAMAR. Known from only two collections, most similar to Nepenthes merrilliana. In need of study. 
44. Nepenthes saranganiensis Sh. Kurata, J. Insectivorous Plant Soc. 54(2) (2003) 41-44. SARANGANI. Characterized by its strongly decurrent leaf bases; possibly only a variant of N. alata.
45. Nepenthes sibuyanensis J Nerz, Carniv. Pl. Newsl. 27 (1998) 18, Fig. 1 & 2 & front cover; --Jebb & Cheek, Fl. Males. ser. 1, 15 (2001) 133, Fig. 16; --Type: P Mann & T Smith 051001 (L, holo), Sibuyan: Mt Guiting-guiting, 1300m, growing between Dipteris and high grasses on open slopes, 5-Oct-1996. SIBUYAN: Mt Guiting-guiting, 1300-2058m, grows quite sparsely on open grassy slopes among Dipteris conjugata and high grasses in ultramafic soils. Known only from the type locality. 
46. Nepenthes sumagaya Cheek, Pl. Carnivora 36 (2014) 45; --Nepenthes amabilis Wistuba, Gronem., Micheler, Marwinski, Gieray, Coritico & V.B.Amoroso, Plants 3 (2014) 295, nom. illeg.; --Type: T. Gronemeyer & A. Wistuba s.n. (CMUH00008635, holo; CMUH00008637, iso), Mindanao: Misamis Oriental, Claveria, Mt. Sumagaya, 19-Aug-2012. MINDANAO: Misamis Oriental.
47. Nepenthes surigaoensis Elmer, LPB 8 (1915) 2785; --Type: Elmer 13705 (NY, iso), Mindanao: Agusan del Norte prov., Mt Urdaneta, trail from Lake Danao to Masay summit, altitude 1700m, Sept 1912. MINDANAO: Agusan del Norte (Mt. Urdaneta). Altitude 800-1700 m. Distinguished from N. merrilliana by its strongly decurrent leaf bases, hairy pitchers, more rounded, smaller lower pitchers, winged upper pitchers (although absent in some specimens) and different peristome attachment. 
48. Nepenthes talaandig Gronem., Coritico, Wistuba, Micheler, Marwinski, Gieray & V.B.Amoroso, Plants 3 (2014) 292; --Type: T. Gronemeyer & F. Coritico s.n. (CMUH00008624, holo), Mindanao: Bukidnon, Pantaron mountain range, Malaybalay City, Brgy. St. Peter, 15-Aug-2012. MINDANAO: Bukidnon.
49. Nepenthes tboli Jebb & Cheek, Blumea 59 (2014) 149; --Type: Gaerlan, Sagcal & Romero PPI 13083 (BRIT, holo; L, iso), Mindanao: South Cotabato Prov., T'Boli, Lake Parker, Aug-1993. Endemic to the Philippines. MINDANAO: South Cotabato. Critically Endangered (D), Cheek & Jebb (2014).
50. Nepenthes truncata Macfarl., Contr. Bot. Lab. Univ. Pennsylv. 3 (1911) 209, t. 2; --Merr., EPFP 2 (1923) 215; --Macfarl., PJS 33 (1927) 137; --Jebb & Cheek, Blumea 42 (1997) 89; Fl. Males. ser. 1, 15 (2001) 120; --Type: Allen 191 (?PENN n.v., cited by Jebb & Cheek, 2001), Mindanao: Surigao del Norte prov., near Samsolang, altitude 600m, 1907. MINDANAO: Agusan del Norte (Mt Hilong-hilong), Surigao del Norte (Cansuran; Samsolang). Wet forests, ridges, exposed rock cliff among tall grasses, on ultramafics in Surigao del Norte, altitude 225-600m. 
51. Nepenthes ultra Jebb & Cheek, Blumea 58 (2013) 241; --Type: Ridsdale 1517 (K, holo; A, K, L, PNH, iso), Luzon: Zambales, Santa Cruz, 25 May 1986. LUZON: Aurora, Isabela, Zambales. 
52. Nepenthes ventricosa Blanco, Fl. Filip. (1837) 807; --Merr., EPFP 2 (1923) 215; --Macfarl. in Engl., Pflanzenreich 4, 3 (1908) 54; PJS 33 (1927) 133; --Jebb & Cheek, Blumea 42 (1997) 90; Fl. Males. ser. 1, 15 (2001) 154; --Type: Cuming 947 (MAN?), Luzon: Albay prov. LUZON: Aurora, Cagayan, Ilocos Norte, Ifugao, Nueva Ecija, Nueva Vizcaya, Mountain Province, Bataan, Quezon, Rizal, Camarines, Albay, Sorsogon. Usually on mossy oak forests, 600-1500m. 
53. Nepenthes viridis Micheler, Gronem., Wistuba, Marwinski, W.Suarez & V.B.Amoroso, Das Taublatt 76 (2013) 4; --Type: Micheler & Wistuba CMUH00008636 (CMUH, holo), Dinagat, 23-Aug-2013. Endemic to Philippines. SAMAR, DINAGAT.
54. Nepenthes zygon Jebb & Cheek, Blumea 59 (2014) 151; --Type: Cheek 17059 (K, holo; L, PNH, iso), Mindanao, Mt. Pasian, Sep-2013 (cult.). Endemic to the Philippines. MINDANAO: Agusan del Norte, Davao Oriental. Critically Endangered (D), Cheek & Jebb (2014).

Nepenthes hamiguitanensis

Literature

Cheek, M. 2011. Nepenthes robcantleyi sp. nov. (Nepenthaceae) from Mindanao, Philippines. Nordic Journal of Botany 29: 677-681.

Cheek, M & MHP Jebb. 2001. Nepenthaceae. Flora Malesiana series 1, 15: 1-162

Cheek, M & MHP Jebb. 2013. Identification and typification of Nepenthes blancoi, with N. abalata sp. nov. from the western Visayas, Philippines. Nordic Journal of Botany 31: 151-156.

Cheek, M & MHP Jebb. 2013. Nepenthes ramos (Nepenthaceae), a new species from Mindanao, Philippines. Willdenowia 43: 107-111.

Cheek, M & MHP Jebb. 2013. Nepenthes alzapan (Nepenthaceae), a new species from Luzon, Philippines. Phytotaxa 100: 57-60.

Cheek, M & MHP Jebb. 2013. Nepenthes samar (Nepenthaceae), a new species from Samar, Philippines. Blumea 58: 82-84

Cheek, M & MHP Jebb. 2013. Nepenthes ultra (Nepenthaceae), a new species from Luzon, Philippines. Blumea 58: 241-244

Cheek, M & MHP Jebb. 2013. Typification and redelimitation of Nepenthes alata with notes on the N. alata group, and N. negros sp. nov. from the Philippines. Nordic Journal of Botany 31: 616-622.

Cheek, M & MHP Jebb. 2013. The Nepenthes micramphora (Nepenthaceae) group, with two new species from Mindanao, Philippines. Phytotaxa 151: 25-34

Cheek, M & MHP Jebb. 2013. Recircumscription of the Nepenthes alata group (Caryophyllales: Nepenthaceae), in the Philippines, with four new species. European Journal of Taxonomy 69: 1-23

Cheek, M. 2014, Nomen novum Nepenthes, Planta Carnivora 36: 44-45.

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