Nepenthes maxima explained

Nepenthes maxima (; from Latin: maximus "greatest"), the great pitcher-plant,[1] is a carnivorous pitcher plant species of the genus Nepenthes. It has a relatively wide distribution covering New Guinea, Sulawesi, and the Maluku Islands. It may also be present on Wowoni Island.[2]

Nepenthes maxima belongs to the loosely defined "N. maxima complex", which also includes, among other species, N. boschiana, N. chaniana, N. epiphytica, N. eymae, N. faizaliana, N. fusca, N. klossii, N. platychila, N. stenophylla, and N. vogelii.[3]

Variability

This species exhibits great variability across its range, particularly in the plasticity of its pitchers.[4] Plants growing in drier, somewhat seasonal parts of New Guinea generally produce elongated pitchers with narrow peristomes and well-developed waxy zones, while those inhabiting perhumid areas often have a reduced waxy zone and enlarged peristome. This is thought to be because the peristome, when fully wetted, is more effective at trapping prey than the waxy zone, but performs poorly in drier conditions.[5] [6]

File:Nepenthes maxima Anggi3.jpgFile:Nepenthes maxima Anggi4.jpgFile:Nepenthes maxima Anggi5.jpgFile:Nepenthes maxima Anggi1.jpg
Lower and upper pitchers of various forms of N. maxima from around the Anggi Lakes, West Papua, New Guinea
Certain forms of N. maxima produce distinctly wavy laminar margins, a trait particularly common in plants from Sulawesi.[7] In extreme examples, even the decurrent wings of the leaf—which can extend down the entire length of the stem's internode—may be highly undulate.[8] Such rippled patterns result from increased cell growth near the edges of the leaf, which causes its thin, planar surface to buckle as it assumes the conformation with the lowest energy state.[9]

Infraspecific taxa

In 2009, a cultivar from Lake Poso in Sulawesi was named Nepenthes maxima 'Lake Poso'.[10] In 2016, this taxon was described as a species in its own right, N. minima.[11]

Natural hybrids

Further reading

External links

Notes and References

  1. Phillipps, A. & A. Lamb 1996. Pitcher-Plants of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
  2. Sunarti, S., A. Hidayat & Rugayah 2008. Keanekaragaman tumbuhan di hutan Pegunungan Waworete, Kecamatan Wawonii Timur, Pulau Wawonii, Sulawesi Tenggara. [Plants diversity at the mountain forest of Waworete, East Wawonii District, Wawonii Island, Southeast Sulawesi.] Biodiversitas 9(3): 194–198.
  3. Robinson, A.S., J. Nerz & A. Wistuba 2011. Nepenthes epiphytica, a new pitcher plant from East Kalimantan. In: McPherson, S.R. . Redfern Natural History Productions, Poole. pp. 36–51.
  4. Marwinski, D. 2014. Eine Expedition nach West-Papua oder auf den Spuren von Nepenthes paniculata. Das Taublatt 78: 11–44.
  5. Clarke, C. 2013. What Can Tree Shrews Tell Us about the Effects of Climate Change on Pitcher Plants? [video] TESS seminars, 25 September 2013.
  6. Moran, J.A., L.K. Gray, C. Clarke & L. Chin 2013. Capture mechanism in Palaeotropical pitcher plants (Nepenthaceae) is constrained by climate. Annals of Botany 112(7): 1279–1291.
  7. Anonymous
  8. Bourke, G. 2010. Web site: Plant profile: Nepenthes maxima. . 2012-10-21 . https://web.archive.org/web/20130409110826/http://captiveexotics.com.au/wp-content/uploads/2009/12/Captive-Exotics-Newsletter-Vol-1-No-1-May-2010.pdf . 2013-04-09 . dead . Captive Exotics Newsletter 1(1): 9–10.
  9. Sharon, E., M. Marder & H.L. Swinney 2004. Leaves, flowers and garbage bags: making waves. American Scientist 92(3): 254–261.
  10. Evans, D.P. 2009. New Cultivars: Nepenthes maxima 'Lake Poso'. Carnivorous Plant Newsletter 38(1): 18–22.
  11. Cheek, M. & M.H.P. Jebb (2016). Nepenthes minima (Nepenthaceae), a new pyrophytic grassland species from Sulawesi, Indonesia. Blumea 61: 181–185.
  12. McPherson, S.R. 2009. Pitcher Plants of the Old World. 2 volumes. Redfern Natural History Productions, Poole.
  13. McPherson, S.R. & A. Robinson 2012. Field Guide to the Pitcher Plants of Sulawesi. Redfern Natural History Productions, Poole.