- Nepenthes hirsuta
-
Nepenthes hirsuta 
Upper pitchers of N. hirsuta. Bako National Park, Borneo. Conservation status Scientific classification Kingdom: Plantae (unranked): Angiosperms (unranked): Eudicots (unranked): Core eudicots Order: Caryophyllales Family: Nepenthaceae Genus: Nepenthes Species: N. hirsuta Binomial name Nepenthes hirsuta
Hook.f. (1873)[1]Synonyms - Nepenthes leptochila
Danser (1928)
Nepenthes hirsuta (pronounced /nɨˈpɛnθiːz hərˈsjuːtə/, from Latin: hirsūtus "hairy, bristly"), the Hairy Pitcher-Plant,[2] is a tropical pitcher plant endemic to Borneo. It is characterised by an indumentum of thick brown hairs, which is even present on the inflorescence. Pitchers are mostly green throughout with some having red blotches on the inside surfaces.[3]
N. hirsuta grows at an elevation of 200–1100 m.[4] It is present in a wide range of habitats, including kerangas forest, mossy banks in lower montane forest, open areas, and disturbed vegetation on lower ridges. It grows mostly on sandstone substrates.[3]
Contents
Taxonomy
N. hirsuta is most closely related to N. hispida and N. macrovulgaris. Botanists Matthew Jebb and Martin Cheek suggest that N. hirsuta is also related to N. philippinensis, a species endemic to Palawan in the Philippines.[5][6]
Morphological differences between N. macrovulgaris, N. hirsuta and N. hispida (Steiner, 2002 after Clarke, 1997) N. macrovulgaris N. hirsuta N. hispida leaves charteous ≤30 cm, oblong to linear leaves coriaceous ≤20 cm, canaliculate-spathulate or obovate leaves coriaceous sessile ≤28 cm, oblanceolate-oblongate apex acute to obtuse apex acute or roundish apex acuminate-obtuse, often unequal base attenuate into a winged petiole, wings wider towards the base, clasping stem for about ½ its diameter, not decurrent base attenuate, forming laterally flattened, semi-amplexicaul sheath base attenuate, amplexicaul and often decurrent onto the internode longitudinal veins: 2-3 on each side longitudinal veins not prominent longitudinal veins: 3 on each side adult pitchers and stem glabrous, young pitchers with short, thin hairs stem densely covered with long brown hairs, not as bristle-like as those of N. hispida stem very densely covered with bristle-like purple-grey hairs -
Herbarium specimens of N. hirsuta
Infraspecific taxa
- Nepenthes hirsuta var. glabrata Macf. (1908)
- Nepenthes hirsuta var. glabrescens W.G.Sm. (1882) [=N. distillatoria]
- Nepenthes hirsuta var. glabrescens rubra auct. non Hort. ex Rafarin: Nichols. (1892) [=N. distillatoria]
- Nepenthes hirsuta var. typica Macf. (1908) nom.illeg.
Natural hybrids
The following natural hybrids involving N. hirsuta have been recorded.
- N. albomarginata × N. hirsuta[3]
- N. ampullaria × N. hirsuta[3]
- ? N. hirsuta × N. lowii[4][7]
References
- ^ Hooker, J.D. 1873. Nepenthaceae. In: A. de Candolle Prodromus Systematis Naturalis Regni Vegetabilis 17: 90–105.
- ^ Phillipps, A. & A. Lamb 1996. Pitcher-Plants of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
- ^ a b c d Clarke, C.M. 1997. Nepenthes of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
- ^ a b McPherson, S.R. 2009. Pitcher Plants of the Old World. 2 volumes. Redfern Natural History Productions, Poole.
- ^ Cheek, M.R. & M.H.P. Jebb 1999. Nepenthes (Nepenthaceae) in Palawan, Philippines. Kew Bulletin 54(4): 887–895. doi:10.2307/4111166
- ^ Schlauer, J. 2000. Literature Reviews.PDF Carnivorous Plant Newsletter 29(2): 53.
- ^ Phillips, A., A. Lamb & C.C. Lee 2008. Pitcher Plants of Borneo. Second Edition. Natural History Publications (Borneo), Kota Kinabalu.
Further reading
- 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.
- Adam, J.H. & C.C. Wilcock 1999. Palynological study of Bornean Nepenthes (Nepenthaceae).PDF Pertanika Journal of Tropical Agricultural Science 22(1): 1–7.
- Bourke, G. 2011. The Nepenthes of Mulu National Park. Carniflora Australis 8(1): 20–31.
- Clarke et al. (2000). Nepenthes hirsuta. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 10 May 2006.
- Clarke, C.M. 2006. Introduction. In: Danser, B.H. The Nepenthaceae of the Netherlands Indies. Natural History Publications (Borneo), Kota Kinabalu. pp. 1–15.
- Lee, C.C. 2002. Nepenthes species of the Hose Mountains in Sarawak, Borneo.PDF Proceedings of the 4th International Carnivorous Plant Conference, Hiroshima University, Tokyo: 25–30.
- (Indonesian) Mansur, M. 2001. Koleksi Nepenthes di Herbarium Bogoriense: prospeknya sebagai tanaman hias.PDF In: Prosiding Seminar Hari Cinta Puspa dan Satwa Nasional. Lembaga Ilmu Pengetahuan Indonesia, Bogor. pp. 244–253.
- Russell, C. & E. Ossian 1990. Opportunistic feeding involving the pitcher plants Nepenthes hirsuta, Nepenthes gracilis and the epiphytic orchid Schomburgkia tibicinis, or natural ant eradication, the rube goldberg method. The Orchid Digest 54(4): 182–184.
- Steiner, H. 2002. Borneo: Its Mountains and Lowlands with their Pitcher Plants. Toihaan Publishing Company, Kota Kinabalu. viii + 136 pp.
- Thorogood, C. 2010. The Malaysian Nepenthes: Evolutionary and Taxonomic Perspectives. Nova Science Publishers, New York.
Incompletely diagnosed taxa: N. sp. Misool • N. sp. Papua • N. sp. Sulawesi
Possible extinct species: N. echinatus • N. echinosporus • N. majorCategories:- IUCN Red List conservation dependent species
- Carnivorous plants of Asia
- Nepenthes
- Plants described in 1873
- Conservation dependent plants
- Nepenthes leptochila
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