Nepenthes mirabilis

Nepenthes mirabilis
Nepenthes mirabilis
An upper pitcher of Nepenthes mirabilis
Conservation status
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Nepenthaceae
Genus: Nepenthes
Species: N. mirabilis
Binomial name
Nepenthes mirabilis
(Lour.) Druce (1916)
Distribution of N. mirabilis.
Synonyms

Nepenthes mirabilis (pronounced /nɨˈpɛnθiːz mɪˈræbɨlɪs/, from Latin: mirabilis = wonderful), or the Common Swamp Pitcher-Plant,[4] is a tropical carnivorous plant species of the pitfall trap variety. It has by far the widest distribution of any Nepenthes species and is known from the following countries and regions: Borneo, Sumatra, Thailand, Peninsular Malaysia, Sulawesi, Maluku Islands, Myanmar, Cambodia, New Guinea, Australia, Philippines, Indochina, China, Hong Kong, Micronesia, Macau, and Palau. It also exhibits great variabiliy with the most forms and varieties of any species in the genus, the most notable of which is N. mirabilis var. echinostoma, a rare variety endemic to Brunei and Sarawak that possesses an extremely wide peristome.[5]

The conservation status of N. mirabilis is listed as Least Concern on the 2006 IUCN Red List of Threatened Species.[6] In Hong Kong, it is a protected species under Forestry Regulations Cap. 96A.

According to Matthew Jebb and Martin Cheek, the pitchers of N. mirabilis are used as toy phallocrypts in New Guinea.

Contents

Taxonomy

Nepenthes mirabilis is closely related to N. rowanae and N. tenax, the only two Nepenthes species endemic to Australia.

Differences between N. mirabilis and N. rowanae (Clarke & Kruger, 2005)
Character N. mirabilis N. rowanae
Morphology of leaf blade Acute to rounded Contracted towards the apex, then continuing along the tendril as a narrow, acute, extension
Insertion of tendril to leaf blade Simple Peltate
Pitcher wings Simple, bearing multicellular fringe elements Often flattened at front, forming a T-shape in XS, multicellular fringe elements often present
Leaf blade texture Usually chartaceous Strongly coriaceous
Leaf blade attachment to stem Simple, or rarely decurrent for ⅓ the length of the internode Decurrent for at least ½ the length of the internode, usually more
Gland density in lower portion of pitcher 1600-2500 / cm² Approximately 3600 / cm²
Position of pitcher hip in upper pitchers Mid-way, to lower half Upper quarter
Position of pitcher hip in lower pitchers Lower third to quarter Immediately beneath peristome

Infraspecific taxa

Across its range, N. mirabilis exhibits great variability in terms of pitcher morphology and colour. The following forms and varieties of N. mirabilis have been described. With the exception of N. mirabilis var. echinostoma and N. mirabilis var. globosa, these taxa are not considered valid today.

  • Nepenthes mirabilis f. anamensis (Hort.Weiner) Hort.Westphal (1991)
  • Nepenthes mirabilis var. anamensis Hort.Weiner in sched. (1985) nom.nud.
  • Nepenthes mirabilis var. biflora J.H.Adam & Wilcock (1992)
  • Nepenthes mirabilis var. echinostoma (Hook.f.) Hort.Slack ex J.H.Adam & Wilcock (1992)
  • Nepenthes mirabilis var. globosa M.Catal. (2010)[7]
  • Nepenthes mirabilis f. simensis (Hort.Weiner) Hort.Westphal (1991)
  • Nepenthes mirabilis var. simensis Hort.Weiner in sched. (1985) nom.nud.
  • Nepenthes mirabilis f. smilesii (Hemsl.) Hort.Westphal (2000)
  • Nepenthes mirabilis var. smilesii (Hemsl.) Hort.Weiner in sched. (1985)

N. mirabilis var. echinostoma

An upper pitcher of N. mirabilis var. echinostoma

Nepenthes mirabilis var. echinostoma was discovered by Odoardo Beccari in 1865 and described as a species, N. echinostoma, by Joseph Dalton Hooker in 1873.[4] In 1882, Frederick William Burbidge described this unusual variety in The Gardeners' Chronicle as follows:[4][8]

Beccari's singular N. echinostoma (vide Herb. Kew) is a wonderful thing, as yet unintroduced—indeed, I suppose unseen by any save Beccari ! The mouths of the urns remind one of the deflexed teeth of some gigantic moss of the Hypnoid section.

Nepenthes mirabilis var. echinostoma is the only form of this species that occurs in Brunei. It has also been recorded from parts of Sarawak, but appears to be completely absent from Sabah.[4]

N. mirabilis var. globosa

A lower pitcher of a cultivated N. mirabilis var. globosa

Nepenthes mirabilis var. globosa has been recorded from a single undisclosed Andaman Sea island off Phang Nga and from the Thai mainland near the city of Trang.[7][9]

This variety was featured on the cover of the January 2006 issue of the Journal of Insectivorous Plant Society, identified as "Nepenthes sp. from Thailand".[10] The name Nepenthes globosa appeared in print in an article by Shigeo Kurata in the July 2007 issue of the Journal of Insectivorous Plant Society.[2] The same issue also featured an article by Masahiro Tada that referred to the plant as "Nepenthes Viking".[3] Prior to its description by Marcello Catalano in 2010, this taxon was also published under the informal name Nepenthes sp. Phanga Nga in Stewart McPherson's 2009 book, Pitcher Plants of the Old World.[9]

In the horticultural trade, this variety is popularly known as both Nepenthes globosa[9] (pronounced /nɨˈpɛnθiːz ɡloʊˈboʊzə/, from Latin: globosus, "globular") and Nepenthes sp. Viking,[9] after the resemblance the pitchers bear to the prow of a Viking ship.[11]

Pitcher infauna

A great number of infaunal organisms have been found in the pitchers of this species. These include the sarcophagid fly Sarcophaga papuensis and the mite Nepenthacarus warreni, which have both been found in Australian populations of the plant.[12][13] Similarly, the mosquitoes Aedes dybasi and Aedes maehleri reside in the pitchers of N. mirabilis on the islands of Palau and Yap, respectively.[14] Both have unusual life histories and morphological traits associated with this habit.[15][16]

The nematode Baujardia mirabilis has been described from N. mirabilis in Thailand. It is not thought to be an accidental; the pitchers of this species appear to be the nematode's natural habitat. The microecosystems in these pitchers were found to be dominated by mosquito larvae, midges, and B. mirabilis. It is speculated that this nematode might have a phoretic relationship with one or more infaunal insect species.[17]

In southern China, tree frogs have been observed in the pitchers of N. mirabilis. The amphibians do not fall prey to the plant, but rather feed on insects that are caught by the pitchers.[18] They are not affected by the acidic digestive juices (which may have a pH as low as 2), likely due to the mucilagenous outer layer of their skin.[19]

The first record of an aquatic fungus living in the pitcher organ of a carnivorous plant came from a specimen of N. mirabilis growing along the Jardine River in Australia. The mycelial fungus was observerd as both free-living in the trap's fluid and attached to chitinous insect remains.[20][21]

The pitchers of N. mirabilis have also been found to harbour a complex community of bacteria.[22]

Natural hybrids

Nepenthes mirabilis has the greatest number of known natural hybrids of any species in the genus.[9]

References

  1. ^ a b Hooker, J.D. 1873. Nepenthaceae. In: A. de Candolle Prodromus Systematis Naturalis Regni Vegetabilis 17: 90–105.
  2. ^ a b (Japanese) Kurata, S. 2007. ネペンテス ・ ノート (XIV) — Nepenthes globosa のネーミングについて. Journal of Insectivorous Plant Society 58(3): 76.
  3. ^ a b (Japanese) Tada, M. 2007. 日本における Nepenthes Viking の渡来と現状について. Journal of Insectivorous Plant Society 58(3): 75.
  4. ^ a b c d Phillipps, A. & A. Lamb 1996. Pitcher-Plants of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
  5. ^ a b c d e f Clarke, C.M. 1997. Nepenthes of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
  6. ^ Clarke et al. (2000). Nepenthes mirabilis. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 12 May 2006.
  7. ^ a b Catalano, M. 2010. Nepenthes mirabilis var. globosa M. Catal. var. nov.PDF In: Nepenthes della Thailandia. Prague. p. 40.
  8. ^ Burbidge, F.W. 1882. Notes on the new Nepenthes. The Gardeners' Chronicle 17(1): 56.
  9. ^ a b c d e f g h i j k McPherson, S.R. 2009. Pitcher Plants of the Old World. 2 volumes. Redfern Natural History Productions, Poole.
  10. ^ (Japanese) Cover of the January 2006 issue of the Journal of Insectivorous Plant Society. Insectivorous Plant Society.
  11. ^ Guerini, M. 2011. 2010: new species of Carnivorous Plants.PDF Associazione Italiana Piante Carnivore.
  12. ^ Yeates, D.K., H. de Souza Lopes & G.B. Monteith 1989. A commensal sarcophagid (Diptera: Sarcophagidae) in Nepenthes mirabilis (Nepenthaceae) pitchers in Australia. Australian Entomological Magazine 16: 33–39.
  13. ^ Fashing, N.J. 2002. Nepenthacarus, a new genus of Histiostomatidae (Acari: Astigmata) inhabiting the pitchers of Nepenthes mirabilis (Lour.) Druce in Far North Queensland, Australia.PDF (1.64 MB) Australian Journal of Entomology 41(1): 7–17. doi:10.1046/j.1440-6055.2002.00263.x
  14. ^ Sota, T. & M. Mogi 2006. Origin of pitcher plant mosquitoes in Aedes (Stegomyia): a molecular phylogenetic analysis using mitochondrial and nuclear gene sequences. Journal of Medical Entomology 43(5): 795–800. doi:10.1603/0022-2585(2006)43[795:OOPPMI]2.0.CO;2
  15. ^ Bohart, R.M. 1956. Insects of Micronesia. Diptera: Culicidae.PDF Insects Micronesia 12(1): 1–85.
  16. ^ Mogi, M. 2010. Unusual life history traits of Aedes (Stegomyia) mosquitoes (Diptera: Culicidae) inhabiting Nepenthes pitchers. Annals of the Entomological Society of America 103(4): 618–624. doi:10.1603/AN10028
  17. ^ Bert, W., I.T. De Ley, R. Van Driessche, H. Segers & P. De Ley 2003. Baujardia mirabilis gen. n., sp. n. from pitcher plants and its phylogenetic position within Panagrolaimidae (Nematoda: Rhabditida).PDF Nematology 5(3): 405–420. doi:10.1163/156854103769224395
  18. ^ Hua, Y. & H. Li 2005. Food web and fluid in pitchers of Nepenthes mirabilis in Zhuhai, China.PDF Acta Botanica Gallica 152(2): 165–175.
  19. ^ Hua, Y. & L. Kuizheng 2004. The Special Relationship Between Nepenthes and Tree Frogs.PDF Carnivorous Plant Newsletter 33(1): 23–24.
  20. ^ Cribbs, A.B. 1987. An aquatic fungus from pitchers of Nepenthes mirabilis. Queensland Naturalist 28: 72–73.
  21. ^ Shnell, D.E. 1992. Literature Review. Carnivorous Plant Newsletter 21(3): 80–82.
  22. ^ Yogiara, A. Suwanto & M.T. Suhartono 2006. A complex bacterial community living in pitcher plant fluid. Jurnal Mikrobiologi Indonesia 11(1): 9–14.
  23. ^ Lauffenburger, A. 1995. Guide to Nepenthes Hybrids. OmnisTerra.
  24. ^ Kurata, S. & M. Toyoshima 1972. Philippine species of Nepenthes. The Gardens' Bulletin Singapore 26(1): 155–158. Abstract
  25. ^ Cheek, M.R. & M.H.P. Jebb 2001. Nepenthaceae. Flora Malesiana 15: 1–157.
  26. ^ Lowrie, A. 1983. Sabah Nepenthes Expeditions 1982 & 1983.PDF (1.25 MB) Carnivorous Plant Newsletter 12(4): 88–95.
  27. ^ a b c d (Italian) Catalano, M. 2010. Nepenthes della Thailandia. Prague.
  28. ^ a b Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
  29. ^ Rischer, H. 1995. Observations on the Nepenthes species of Irian Jaya, Part I: Nepenthes insignis Danser.PDF (461 KB) Carnivorous Plant Newsletter 24(3): 75–77.
  30. ^ Lee, C.C. 2007. Re: The most accessible limestone hill of Bau. Carnivorous Plants in the tropics.
  31. ^ a b c Phillips, A., A. Lamb & C.C. Lee 2008. Pitcher Plants of Borneo. Second Edition. Natural History Publications (Borneo), Kota Kinabalu.
  32. ^ Clarke, C.M. & R. Kruger 2005. Nepenthes rowanae (Nepenthaceae), a remarkable species from Cape York, Australia. Carnivorous Plant Newsletter 34(2): 36–41.
  33. ^ Bednar, B. 1983. Nepenthes mirabilis variation.PDF (111 KB) Carnivorous Plant Newsletter 12(3): 64.
  34. ^ N. thorelii rediscovered. Carnivorous Plants in the tropics.
  • Adam, J.H. & C.C. Wilcock 1992. Nepenthes mirabilis (Loureiro) Druce from Borneo. Malayan Nature Journal 46(2): 75–84.
  • Clarke, C.M. 2001. A Guide to the Pitcher Plants of Sabah. 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.
  • (German) Gronemeyer, T. 2008. Nepenthes auf den Philippinen – Ein Reisebericht. Das Taublatt 60(1): 15–27.
  • Hernawati & P. Akhriadi 2006. A Field Guide to the Nepenthes of Sumatra. PILI-NGO Movement, Bogor.
  • McPherson, S.R. & V.B. Amoroso 2011. Field Guide to the Pitcher Plants of the Philippines. Redfern Natural History Productions, Poole.
  • (German) McPherson, S. & T. Gronemeyer 2008. Die Nepenthesarten der Philippinen Eine Fotodokumentation. Das Taublatt 60(1): 34–78.
  • Shivas, R.G. 1984. Pitcher Plants of Peninsular Malaysia & Singapore. Maruzen Asia, Kuala Lumpur.
  • Thorogood, C. 2010. The Malaysian Nepenthes: Evolutionary and Taxonomic Perspectives. Nova Science Publishers, New York.

Further reading

External links


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