- Nepenthes lavicola
-
Nepenthes lavicola 
Conservation status Scientific classification Kingdom: Plantae (unranked): Angiosperms (unranked): Eudicots (unranked): Core eudicots Order: Caryophyllales Family: Nepenthaceae Genus: Nepenthes Species: N. lavicola Binomial name Nepenthes lavicola
Wistuba & Rischer (1996)[1]Synonyms - Nepenthes singalana
auct. non Becc.: Tamin & M.Hotta in M.Hotta (1986)[2]
[=N. bongso/N. densiflora?/N. gymnamphora/
N. lavicola/N. singalana/N. spathulata] - Nepenthes spectabilis
auct. non Danser: Jebb & Cheek (1997)[3]
[=N. lavicola/N. spectabilis]
Nepenthes lavicola (pronounced /nɨˈpɛnθiːz ˌlævɪˈkoʊlə/, from Latin: lavicola growing upon lava) is a tropical pitcher plant species endemic to northern Sumatra. It is thought to be most closely related to N. singalana and N. spectabilis.
Nepenthes lavicola is notable for its very prominent bracts, which often overarch the flowers and may be up to 7 cm long at the base of female inflorescences.[1] This species is also unusual in that it bears up to two bracts per pedicel or partial peduncle.[1]
Swiss botanist Albert Friedrich Frey-Wyssling mentioned N. lavicola in a 1931 article as an unidentified Nepenthes species.[1][4]
Differences between N. lavicola, N. singalana and N. spectabilis (Wistuba & Rischer, 1996) Character N. lavicola N. singalana N. spectabilis Shape of lower pitchers urceolate to globose basal part infundibuliform, cylindrical in the upper part ovate in the lower part, cylindrical in the upper part Shape of upper pitchers slender, lower part infundibuliform to ovate then ventricose, slightly hipped in the middle narrowing to the somewhat waisted cylindrical upper part lower half infundibuliform, mostly ventricose in the middle, cylindrical or slightly narrowed towards the mouth infundibuliform in the lower half, tubulose in the upper half Colour of pitchers usually dark brownish purple to almost black, peristome yellowish green, sometimes with red stripes, occasionally colour of pitchers yellowish green with blackish spots, innerside of the pitchers pale green, in the lower pitchers red spotted light green to dark red, violett spotted or not light green, with numerous longitudinal dark violett - brown stripes and spots Lid ovate-cordate suborbicular, cordate at the base orbiculate Spur up to 0.5 cm in length, branched in case of lower pitchers 2-3 mm, slightly flattened, not branched 2 cm in length, simple Spur insertion close to the lid base close to the lid 5-10 mm below the lid base Floral bracts bracts very prominent, usually overarching the flowers, some of the lower ones reaching several cm in length male: filiform bract, female: without bract pedicels bearing filiform bracts Fruit 2-3 times as long as broad, up to 1.8 cm long up to 30 mm long very slender, 4-5 cm in length Nepenthes lavicola has no known natural hybrids.[5] No forms or varieties have been described.
References
- ^ a b c d Wistuba, A. & H. Rischer 1996. Nepenthes lavicola, a new species of Nepenthaceae from the Aceh Province in the North of Sumatra. Carnivorous Plant Newsletter 25(4): 106–111.
- ^ Tamin, R. & M. Hotta 1986. Nepenthes di Sumatera: The genus Nepenthes of the Sumatra Island. In: M. Hotta (ed.) Diversity and Dynamics of Plant Life in Sumatra 1. Kyoto University, Japan. pp. 75–109.
- ^ Jebb, M.H.P. & M.R. Cheek 1997. A skeletal revision of Nepenthes (Nepenthaceae). Blumea 42(1): 1–106.
- ^ Frey-Wyssling, A. 1931. Over de vegetatie van den Boer ni Telong en omstreken in de Gajolanden (Noord Sumatra). De Tropische Natuur 20: 37–49.
- ^ McPherson, S.R. 2009. Pitcher Plants of the Old World. 2 volumes. Redfern Natural History Productions, Poole.
- Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
- Hernawati & P. Akhriadi 2006. A Field Guide to the Nepenthes of Sumatra. PILI-NGO Movement, Bogor.
- (Czech) Koudela, I. 1998. Klíčí nebo neklíčí. Trifid 1998(2): 36–37. (page 2)
- Schnell, D., Catling, P., Folkerts, G., Frost, C., Gardner, R., et al. (2000). Nepenthes lavicola. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 11 May 2006. Listed as Critically Endangered (CR B1+2c v2.3)
Incompletely diagnosed taxa: N. sp. Misool • N. sp. Papua • N. sp. Sulawesi
Possible extinct species: N. echinatus • N. echinosporus • N. major
This Nepenthes article is a stub. You can help Wikipedia by expanding it. - Nepenthes singalana
