Nepenthes reinwardtiana

Nepenthes reinwardtiana
Nepenthes reinwardtiana
Nepenthes reinwardtiana pitchers
Conservation status
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Nepenthaceae
Genus: Nepenthes
Species: N. reinwardtiana
Binomial name
Nepenthes reinwardtiana
Miq. (1852)
Synonyms

Nepenthes reinwardtiana (pronounced /nɨˈpɛnθiːz ˌraɪnwɔrtiˈɑːnə/, after Caspar Georg Carl Reinwardt), Reinwardt's Pitcher-Plant,[1] is a Nepenthes species found on the islands of Borneo and Sumatra.[2] Although some sources have included Peninsular Malaysia[3][4][5][6] and Singapore[4][7] within the range of this species, these records appear to be erroneous.[8][9]

Nepenthes reinwardtiana has an unusually wide altitudinal distribution of 0–2200 m,[2] being both a "lowland" and "highland" plant. There are many different colour forms, ranging from green to dark red. This species is known for the two "eye spots" on the inside surface of its pitchers.

Contents

Taxonomy and systematics

Upper pitchers of a plant identified as N. naquiyuddinii

Nepenthes naquiyuddinii

Nepenthes naquiyuddinii[note a] (pronounced /nɨˈpɛnθiːz ˌnækɨjʊˈdɪni.aɪ/) was described in 2006 by J. H. Adam and Hafiza A. Hamid.[10][11] The taxon is only known from Keningau-Kimanis Road and the foot of Mount Trus Madi, both in Sabah, Borneo, where it grows at an elevation of 1400 to 1424 m in open secondary vegetation.[10]

Although acknowledging close affinities between N. naquiyuddinii and N. reinwardtiana, Adam and Hafiza stated that the "two species exhibit many morphological differences and therefore they cannot be united into the same species".[10] However, some authors consider these differences too small for species status and treat N. naquiyuddinii as a heterotypic synonym of N. reinwardtiana.[12] Alternatively, N. naquiyuddinii may represent a natural hybrid involving N. fusca and N. reinwardtiana, the only species that are sympatric with it.[13]

Phylogeny

In 2001, Charles Clarke performed a cladistic analysis of the Nepenthes species of Sumatra and Peninsular Malaysia using 70 morphological characteristics of each taxon. The following is a portion of the resultant cladogram, showing part of "Clade 6". The sister pair of N. angasanensis and N. mikei has 79% support.[14]


unnamed

N. gracilis



N. reinwardtiana



unnamed


N. tobaica


     79%

N. angasanensis



N. mikei






Intraspecific taxa

  • Nepenthes reinwardtiana var. samarindaensis J.H.Adam & Wilcock (1993)[15]

Natural hybrids

N. fusca × N. reinwardtiana
N. reinwardtiana × N. stenophylla

The following natural hybrids involving N. reinwardtiana have been recorded.

Notes

a.^ The species was named after the Universiti Kebangsaan Malaysia Pro-Chancellor, Yang Amat Mulia Tunku Laxamana Tunku Dato' Seri Utama Naquiyuddin Ibni Tuanku Ja'afar.[10]

References

  1. ^ Phillipps, A. & A. Lamb 1996. Pitcher-Plants of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
  2. ^ a b c d McPherson, S.R. 2009. Pitcher Plants of the Old World. 2 volumes. Redfern Natural History Productions, Poole.
  3. ^ Macfarlane, J.M. 1908. Nepenthaceae. In: A. Engler. Das Pflanzenreich IV, III, Heft 36: 1–91.
  4. ^ a b Danser, B.H. 1928. The Nepenthaceae of the Netherlands Indies. Bulletin du Jardin Botanique de Buitenzorg, Série III, 9(3–4): 249–438.
  5. ^ Holttum, R.E. 1940. Malayan pitcher-plants. Malayan Nature Journal 1: 35–44.
  6. ^ Shivas, R.G. 1984. Pitcher Plants of Peninsular Malaysia & Singapore. Maruzen Asia, Kuala Lumpur.
  7. ^ Green, S. 1967. Notes on the distribution of Nepenthes species in Singapore. The Gardens' Bulletin Singapore 22: 53–65.
  8. ^ Adam, J.H., C.C. Wilcock & M.D. Swaine 1992. The ecology and distribution of Bornean Nepenthes.PDF Journal of Tropical Forest Science 5(1): 13–25.
  9. ^ Clarke, C.M. 2006. Introduction. In: Danser, B.H. The Nepenthaceae of the Netherlands Indies. Natural History Publications (Borneo), Kota Kinabalu. pp. 1–15.
  10. ^ a b c d Adam, J.H. & Hafiza A. Hamid 2006. Pitcher Plants (Nepenthes) Recorded from Keningau-Kimanis Road in Sabah, Malaysia.PDF (2.40 MiB) International Journal of Botany 2(4): 431-436. ISSN 1811-9700 doi:10.3923/ijb.2006.431.436
  11. ^ Fong, L.F. 2007. New pitcher species. The Star, May 11, 2007.
  12. ^ Rice, B.A. 2006. Do you want to tell me about a species I missed? The Carnivorous Plant FAQ.
  13. ^ a b c Phillips, A., A. Lamb & C.C. Lee 2008. Pitcher Plants of Borneo. Second Edition. Natural History Publications (Borneo), Kota Kinabalu.
  14. ^ a b c d e f Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
  15. ^ Adam, J.H. & C.C. Wilcock 1993. A new variety of Nepenthes reinwardtiana Miquel from Kalimantan, Borneo. Edinburgh Journal of Botany 50(1): 99–104.
  16. ^ a b c d e f Clarke, C.M. 1997. Nepenthes of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
  17. ^ (Indonesian) Dariana 2010. Keanekaragaman Nepenthes dan pohon inang di Taman Wisata Alam Sicikeh-Cikeh Kabupaten Dairi Sumatera Utara. M.Sc. thesis, University of North Sumatra, Medan.

Further reading


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