Nepenthes × hookeriana explained

Nepenthes × hookeriana (; after Joseph Dalton Hooker), or Hooker's pitcher-plant,^[1] is a common natural hybrid involving N. ampullaria and N. rafflesiana. It was originally described as a species.

It is a relatively common natural hybrid found throughout the lowlands of Borneo, Peninsular Malaysia, Singapore, and Sumatra.^{[2] [3] [4]} It is also present on smaller surrounding islands such as Natuna.^[5] Like its parental species, the hybrid generally grows in recently disturbed clearings.

Infraspecific taxa

• Nepenthes hookeri var. elongata Hort.Veitch ex Wilson (1877)^[6] sphalm.typogr.
• Nepenthes hookeriana f. elongata (Hort.Veitch ex Wilson) Divers (1879)

Further reading

• [Anonymous] 1848. New garden plants, published in books. The Gardeners' Chronicle and Agricultural Gazette 1848(6): 87.
• [Anonymous] 1881. Messrs. Veitch's Nepenthes-house. The Gardeners' Chronicle, new series, 16(410): 598–599.
• [Anonymous] 1883. Mr. A. E. Ratcliff's Nepenthes. The Gardeners' Chronicle 20(497): 18–19.
• [Anonymous] 1887. Nepenthes culture. The Gardeners' Chronicle, series 3, 2(41): 442–443.
• Adam, J.H., C.C. Wilcock & M.D. Swaine 1992. Web site: The ecology and distribution of Bornean Nepenthes. . dead . https://web.archive.org/web/20110722233248/http://myais.fsktm.um.edu.my/8918/1/10.pdf . 2011-07-22 . Journal of Tropical Forest Science 5(1): 13–25.
• Adam, J.H. 1997. Web site: Prey spectra of Bornean Nepenthes species (Nepenthaceae) in relation to their habitat. . Pertanika Journal of Tropical Agricultural Science 20(2–3): 121–134.
• Adam, J.H. & C.C. Wilcock 1999. Web site: Palynological study of Bornean Nepenthes (Nepenthaceae). . Pertanika Journal of Tropical Agricultural Science 22(1): 1–7.
• Bednar, B.L. 1985. Web site: Nepenthes ✕ dominii and var. intermedia. . Carnivorous Plant Newsletter 14(4): 105–106.
• Brearley, F.Q. & M. Mansur 2012. Nutrient stoichiometry of Nepenthes species from a Bornean peat swamp forest. Carnivorous Plant Newsletter 41(3): 105–108.
• Burbidge, F.W. 1882. Notes on the new Nepenthes. The Gardeners' Chronicle, new series, 17(420): 56.
• Clarke, C.M. 1997. Nepenthes of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
• Clarke, C.M. 2002. A Guide to the Pitcher Plants of Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
• Clarke, C.M. 2006. Introduction. In: Danser, B.H. The Nepenthaceae of the Netherlands Indies. Natural History Publications (Borneo), Kota Kinabalu. pp. 1–15.
• Dixon, W.E. 1889. Nepenthes. The Gardeners' Chronicle, series 3, 6(144): 354.
• Handayani, T. 1999. Web site: Konservasi Nepenthes di kebun raya Indonesia. . [Conservation of ''Nepenthes'' in Indonesian botanic gardens.] In: A. Mardiastuti, I. Sudirman, K.G. Wiryawan, L.I. Sudirman, M.P. Tampubolon, R. Megia & Y. Lestari (eds.) Prosiding II: Seminar Hasil-Hasil Penelitian Bidang Ilmu Hayat. Pusat Antar Universitas Ilmu Hayat IPB, Bogor. pp. 365–372.
• Handayani, T., D. Latifah & Dodo 2005. Diversity and growth behaviour of Nepenthes (pitcher plants) in Tanjung Puting National Park, Central Kalimantan Province. Biodiversitas 6(4): 248–252 . Cover
• Hwee, K.C. 1996. Carnivorous plants and sites in Singapore. Bulletin of the Australian Carnivorous Plant Society, Inc. 15(4): 12–15.
• Mansur, M. 2001. Web site: Koleksi Nepenthes di Herbarium Bogoriense: prospeknya sebagai tanaman hias. . dead . https://web.archive.org/web/20120319205635/http://elib.pdii.lipi.go.id/katalog/index.php/searchkatalog/downloadDatabyId/1286/1286.pdf . 2012-03-19 . In: Prosiding Seminar Hari Cinta Puspa dan Satwa Nasional. Lembaga Ilmu Pengetahuan Indonesia, Bogor. pp. 244–253.
• Mansur, M. 2007. Keanekaragaman jenis Nepenthes (kantong semar) dataran rendah di Kalimantan Tengah. [Diversity of lowland ''Nepenthes'' (kantong semar) in Central Kalimantan.] Berita Biologi 8(5): 335–341. Abstract
• Mansur, M. 2008. Penelitian ekologi Nepenthes di Laboratorium Alam Hutan Gambut Sabangau Kereng Bangkirai Kalimantan Tengah . [Ecological studies on ''Nepenthes'' at Peat Swamps Forest Natural Laboratory, Kereng Bangkirai Sabangau, Central Kalimantan.] Jurnal Teknologi Lingkungan 9(1): 67–73. Abstract
• Moore, D. 1872. On the culture of Nepenthes at Glasnevin. The Gardeners' Chronicle and Agricultural Gazette 1872(11): 359–360.
• Rahim, S.A., T. Lihan, M. Baba, A. Laming, Z.A. Rahman, W.M.R. Idris, M.B. Gasim, A. Hashim, S.M. Yusof & L.H. Yin 2008. Pengambilan logam berat oleh Nepenthes gracilis dan N. Hookeriana dalam tanih bekas lombong besi dan timah, Pelepah Kanan, Kota Tinggi, Johor. [Heavy metal uptake by ''Nepenthes gracilis'' and ''N. Hookeriana'' in ex-iron and tin mine soil, Pelepah Kanan, Kota Tinggi, Johor.] Sains Malaysiana 37(1): 39–49. Abstract
• Shivas, R.G. 1984. Pitcher Plants of Peninsular Malaysia & Singapore. Maruzen Asia, Kuala Lumpur.
• Slack, A. 1979. Nepenthes x hookeriana. In: Carnivorous Plants. Ebury Press, London. p. 84.
• Teo, L.L. 2001. Study of natural hybridisation in some tropical plants using amplified fragment length polymorphism analysis. M.Sc. thesis, Nanyang Technological University, Singapore.
• Turnbull, J. & A. Middleton 1984. Web site: Tedious trudge through the torturous turmoils of taxonomy. .   Carnivorous Plant Newsletter 13(3): 61–67.
• Yulita, K.S. & M. Mansur 2012. The occurrence of hybrid in Nepenthes hookeriana Lindl. from Central Kalimantan can be detected by RAPD and ISSR markers. HAYATI Journal of Biosciences 19(1): 18–24.
• James Wong and the Malaysian Garden. [video] BBC Two.

Notes and References

1. Phillipps, A. & A. Lamb 1996. Pitcher-Plants of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
2. McPherson, S.R. & A. Robinson 2012. Field Guide to the Pitcher Plants of Borneo. Redfern Natural History Productions, Poole.
3. McPherson, S.R. & A. Robinson 2012. Field Guide to the Pitcher Plants of Peninsular Malaysia and Indochina. Redfern Natural History Productions, Poole.
4. McPherson, S.R. & A. Robinson 2012. Field Guide to the Pitcher Plants of Sumatra and Java. Redfern Natural History Productions, Poole.
5. Mansur, M. 2012. Keanekaragaman jenis tumbuhan pemakan serangga dan laju fotosintesisnya di Pulau Natuna. [Diversity on insectivorous plants and its photosynthetic rate in Natuna Island.] Berita Biologi 11(1): 33–42. Abstract
6. Anonymous