|
|}} ''Nepenthes longifolia'' is a tropical pitcher plant endemic to Sumatra, where it grows at elevations of between 300 and 1100 m above sea level. The specific epithet ''longifolia'', formed from the Latin words ''longus'' (long) and ''folius'' (leaf), refers to the exceptionally large leaves of this species.〔Clarke, C.M. 2001. ''Nepenthes of Sumatra and Peninsular Malaysia''. Natural History Publications (Borneo), Kota Kinabalu.〕 ==Botanical history== The first known collection of ''N. longifolia'' was made by Willem Meijer in 1957. The specimen ''Meijer 6913'' was collected on August 24, 1957, in a sandstone region of the river Tjampo near Taram in West Sumatra, at an altitude of 500–1000 m. The plant was growing in forest on the slope of a river valley. The specimen is sheet H.L.B. 958.85111 at the National Herbarium of the Netherlands in Leiden.〔 In 1986, Rusjdi Tamin and Mitsuru Hotta invalidly described ''Nepenthes rafflesiana'' var. ''longicirrhosa''.〔 Charles Clarke observed this taxon at the type locality in 1995 and concluded that it is conspecific with ''N. longifolia''.〔Clarke, C.() 1997. (Another Nice Trip to Sumatra ). ''Carnivorous Plant Newsletter'' 26(1): 4–10.〕 Subsequent revisions of the genus have formally synonymised these taxa.〔 ''Nepenthes longifolia'' was formally described by Joachim Nerz and Andreas Wistuba in a 1994 issue of the ''Carnivorous Plant Newsletter''.〔 The holotype of ''N. longifolia'', ''Nerz 2801'', was collected by Joachim Nerz on September 25, 1992, in the Tjampo Mountains near Taram, West Sumatra, at an altitude of 1000 m. It is deposited at the National Herbarium of the Netherlands in Leiden.〔 Seven other specimens of ''N. longifolia'' were collected on the same day and at the same location; ''Nerz 2802'', ''2803'', ''2804'', and ''2805'' are deposited at the National Herbarium of the Netherlands (L) together with the holotype, while ''Nerz 2806'', ''2807'', and ''2808'' are held at the Institut für Biologie I at the Eberhard Karls University of Tübingen (TUB).〔 Matthew Jebb and Martin Cheek treated ''N. longifolia'' in synonymy with ''N. sumatrana'' in their 1997 monograph, "A skeletal revision of ''Nepenthes'' (Nepenthaceae)".〔 The authors tentatively upheld this synonymy in their 2001 revision, "Nepenthaceae", writing:〔 Although we treat ''N. longifolia'' as a synonym (''N. sumatrana'' ), it is representative of other specimens from inland Sumatra, at higher altitudes (c. 1000 m) that show differences from the plants at sea level on the coast. The inland plants have more slender pitchers which are ellipsoid in the lower half and cylindrical in the upper (not infundibuliform), with an elliptic (not a suborbicular) lid. However, intermediates are reported. More specimens are needed before ''N. longifolia'' can be fully resolved. The most recent taxonomic revision by Charles Clarke, ''Nepenthes of Sumatra and Peninsular Malaysia'' (2001), elevated ''N. longifolia'' to species status once again.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nepenthes longifolia」の詳細全文を読む スポンサード リンク
|