Nepenthes smilesii (/nɪˈpɛnθiːzˈsmaɪlziaɪ,-smaɪˈliːziaɪ/) is a tropical pitcher plant native to northeastern Thailand, southern Laos, Cambodia,[3][4] and Vietnam.[5][6][7]Nepenthes smilesii can tolerate an extended dry season and is most common in open, sandy savannah and grassland.[6]
Nepenthes micholitzii Hort. ex Bonst. (1931) nom.illeg.
The specific epithet smilesii refers to plant collector Frederick Henry Smiles, who made the first known collection of this species.[5]
Botanical history
Nepenthes anamensis[note a] is a heterotypic synonym of N. smilesii.[5][6] Its conservation status appears as Data Deficient on the IUCN Red List.[1]
Nepenthes smilesii was referred to as N.anamensis throughout most of the 20th century.[5] Further confusion resulted from the erroneous labelling of N.smilesii plants as N.thorelii in the horticultural trade.[5] In Pitcher Plants of the Old World, Stewart McPherson lists N.mirabilis f. smilesii and N.mirabilis var. smilesii as synonyms of N.smilesii,[5] but Marcello Catalano considers these to represent normal forms of N.mirabilis.[6]
Description
Nepenthes smilesii is a climbing plant growing to a height of 5m.[5]
Its leaves are sessile and coriaceous (leathery) in texture. They are very narrowly linear, reaching 40cm in length while only up to 4cm wide.[5]
Ecology
In Kirirom National Park, Cambodia (~700 m asl)
Nepenthes smilesii has a widespread distribution throughout Indochina. It has been recorded from Cambodia,[4] northeastern Thailand, southern Laos, and western Vietnam.[5][6] The species occurs across a wide range of altitudes, being recorded from elevations of 16[4]–1500m above sea level, although it is more typically found at around 800m.[5]
Nepenthes smilesii is notable among the Indochinese Nepenthes for experiencing extreme lows of temperature.[5]
Individual specimens of a natural hybrid between N.smilesii and N.mirabilis have been recorded from Cambodia.[8]
Related species
Nepenthes smilesii appears most closely allied to N.kongkandana and may be difficult to distinguish from that species. It differs primarily in the shape of its laminae, which are linear to lanceolate with an acute apex, as opposed to obovate with an acuminate apex in the latter.[6]Nepenthes smilesii also differs in having shorter tendrils and a narrower peristome.[5]
Notes
a.^Nepenthes anamensis is pronounced /nɪˈpɛnθiːzˌænəˈmɛnsɪs/. The specific epithet is derived from Annam, a former territory in central Vietnam.
McPherson, S.R. 2009. Pitcher Plants of the Old World. 2 volumes. Redfern Natural History Productions, Poole.
(in Italian) Catalano, M. 2010. Nepenthes della Thailandia: Diario di viaggio. Prague.
Nunn, R. & C.N.A. Vu 2016. An account of the Nepenthes species of Vietnam. Carnivorous Plant Newsletter45(3): 93–101.
Mey, F.S., L.H. Truong, D.V. Dai & A.S. Robinson 2011. Nepenthes thorelii, an emended description and novel ecological data resulting from its rediscovery in Tay Ninh, Vietnam. In: McPherson, S.R. New Nepenthes: Volume One. Redfern Natural History Productions, Poole. pp. 104–131.
Further reading
Beveridge, N.G.P., C. Rauch, P.J.A. Keßler, R.R. van Vugt & P.C. van Welzen 2013. A new way to identify living species of Nepenthes (Nepenthaceae): more data needed! Carnivorous Plant Newsletter42(4): 122–128.
Kahl, T. 2003. "Amazing Thailand"(PDF). Carnivorous Plant Newsletter32(1): 8–9.
McPherson, S.R. & A. Robinson 2012. Field Guide to the Pitcher Plants of Peninsular Malaysia and Indochina. Redfern Natural History Productions, Poole.
Meimberg, H. & G. Heubl 2006. Introduction of a nuclear marker for phylogenetic analysis of Nepenthaceae. Plant Biology8(6): 831–840. doi:10.1055/s-2006-924676
Meimberg, H., S. Thalhammer, A. Brachmann & G. Heubl 2006. Comparative analysis of a translocated copy of the trnK intron in carnivorous family Nepenthaceae. Molecular Phylogenetics and Evolution39(2): 478–490. doi:10.1016/j.ympev.2005.11.023
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