Nepenthes reinwardtiana

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Nepenthes reinwardtiana

Nepenthes reinwardtiana pitchers

Kingdom:	Plantae
Division:	Magnoliophyta
Class:	Magnoliopsida
Order:	Caryophyllales
Family:	Nepenthaceae
Genus:	Nepenthes
Species:	N. reinwardtiana

Binomial name

Nepenthes reinwardtiana
Miq. (1852)

Synonyms

Nepenthes reinwardtii
Hook.f. (1859) sphalm.typogr.

Nepenthes reinwardtiana (pronounced /nəˈpɛnθiːz ˈraɪnwɔːrdtiːˌɑːnə/ or /ˈriːɪnwɔːrdtiːˌɑːnə/, after Caspar Georg Carl Reinwardt), or Reinwardt's Pitcher-Plant,^[1] is a Nepenthes species found on the islands of Borneo and Sumatra. N. reinwardtiana has an unusually wide altitudinal distribution of 0-2100 m, being both a "lowland" and "highland" plant. There are many different colour forms, ranging from green to dark red. This species is famous for the two "eye spots" on the inside surface of its pitchers.

1 Taxonomy
2 Intraspecific taxa
3 Natural hybrids
4 References

[edit] Taxonomy

Lower pitcher of cultivated N. reinwardtiana red

N. reinwardtiana is most closely related to N. naquiyuddinii, from which it differs in several aspects of pitcher and leaf morphology. However, some authors believe N. naquiyuddinii is too similar to N. reinwardtiana to merit species status.^[2]

Morphological differences between *N. naquiyuddinii* and *N. reinwardtiana* (Adam & Hafiza, 2006)
Morphological character	N. naquiyuddinii	N. reinwardtiana
Two spots on inner cavity wall below peristome of upper and lower pitchers	Absent	Present
Shape of upper pitchers	Upper ⅓ region tubular and lower ⅔ region infundibulate	Infundibulate in upper and lower portions, tubular in the middle portion
Shape of lower pitchers	Tubular upper ⅓ and ventricose lower ⅔ portion	Infundibulate in upper and lower portions, tubular in the middle portion
Leaves	Sessile to petiolate	Sessile
Leaf apex of lower stem	Apical and subpeltate	Apical only
Inner peristome margin	Toothed	Entire
Peristome rib	Distinct	Inconspicuous

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.^[3] N. naquiyuddinii was not included in this analysis.

unnamed

	N. gracilis

	N. reinwardtiana

unnamed

N. tobaica

79%

	N. angasanensis

	N. mikei

[edit] Intraspecific taxa

Nepenthes reinwardtiana var. samarindaensis J.H.Adam & Wilcock (1993)

[edit] Natural hybrids

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

N. albomarginata × N. reinwardtiana [=N. × ferrugineomarginata]^[4]
N. ampullaria × N. reinwardtiana^[3]
N. clipeata × N. reinwardtiana^[4]
N. fallax × N. reinwardtiana^[4]
N. gracilis × N. reinwardtiana^[3]
N. hispida × N. reinwardtiana^[4]
N. macrovulgaris × N. reinwardtiana^[4]
N. pectinata × N. reinwardtiana^[3]
N. reinwardtiana × N. spathulata^[3]
? N. reinwardtiana × N. tentaculata [=?N. murudensis]^[4]
N. reinwardtiana × N. tobaica^[3]

[edit] References

Wikimedia Commons has media related to:

Nepenthes reinwardtiana

^ Phillipps, A. & A. Lamb 1996. Pitcher-Plants of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
^ Rice, B.A. 2006. Do you want to tell me about a species I missed? The Carnivorous Plant FAQ.
^ ^a ^b ^c ^d ^e ^f Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
^ ^a ^b ^c ^d ^e ^f Clarke, C.M. 1997. Nepenthes of Borneo. Natural History Publications (Borneo), Kota Kinabalu.