|
|}} ''Nepenthes surigaoensis'' is a tropical pitcher plant endemic to the Philippine island of Mindanao, where it grows at elevations of at least 800–1200 m above sea level.〔McPherson, S.R. 2009. ''Pitcher Plants of the Old World''. 2 volumes. Redfern Natural History Productions, Poole.〕 The species is named after Surigao Peninsula, where the type specimen was collected. It is closely related to ''N. merrilliana'' and was for a long time considered a heterotypic synonym of this species.〔 ==Botanical history== The type specimen of ''N. surigaoensis'' was collected by Adolph Daniel Edward Elmer in September 1912, along the trail from lake Danao to the summit of Mount Masay (previously known as Mount Urdaneta), in Cabadbaran, Agusan Province, Mindanao,〔Schlauer, J. N.d. (''Nepenthes surigaoensis'' ). Carnivorous Plant Database.〕 at an altitude of 1700 m.〔 The type material of ''N. surigaoensis'' forms part of the herbarium collection designated as ''Elmer 13705'' (erroneously referred to as "number 12705" in the type description); this series also includes material from ''N. petiolata''.〔 Part of the original material was deposited at Herbarium Bogoriense (BO), the herbarium of the Bogor Botanical Gardens (formerly the Herbarium of the Buitenzorg Botanic Gardens) in Java,〔 and some may be at the Philippine National Herbarium (PNH) in Manila, the Philippines.〔 An isotype is held at the herbarium of the New York Botanical Garden (NY) in the United States.〔(Specimen Details: ''Nepenthes surigaoensis'' Elmer (isotype) ). The New York Botanical Garden.〕 ''Nepenthes surigaoensis'' was formally described by Elmer in the March 27, 1915 issue of ''Leaflets of Philippine Botany''.〔〔(''Nepenthes surigaoensis'' Elmer ). International Plant Names Index (IPNI).〕 Elmer made the following comments about the species in its type description:〔 Found among the moss laden cold and windy forested ridge at 5750 feet altitude along the newly cut trail from lake Danao to the summit of mount Urdaneta or Masay as the natives call it. The Manobos named this as well as all other pitcher plants "Lapsay." B. H. Danser grouped ''N. surigaoensis'' with ''N. merrilliana'' in his seminal 1928 monograph, "The Nepenthaceae of the Netherlands Indies",〔 writing that it "probably" represents a heterotypic synonym of this species.〔Danser, B.H. 1928. (''Nepenthes petiolata'' Dans., spec. nova. ). In: The Nepenthaceae of the Netherlands Indies. ''Bulletin du Jardin Botanique de Buitenzorg'', Série III, 9(3–4): 249–438.〕 Commenting on the relationship between these two taxa, Danser wrote:〔 The specimen on which Elmer based his ''N. surigaoensis'' is cited Elmer 12705 by the author himself. Probably this is wrong and the real number is Elmer 13705 ; Merrill confirms this in Phil. Journ. Sc., XXXIII, p. 132, note. Now there is a fragment of this number in the Buitenzorg Herbarium which does not agree at all with the description of ''N. Merrilliana'', nor with that of ''N. surigaoensis''. This is elucidated by Elmer himself in the discussion of his new species: he has distributed under one and the same number two kinds of plants, on the first kind of which is based his description of ''N. surigaoensis'', which seems identical with ''N. Merrilliana'', whereas the second kind is a yet undescribed species. See ''N. petiolata''. Danser's interpretation was followed by Matthew Jebb and Martin Cheek in their 1997 monograph, "A skeletal revision of ''Nepenthes'' (Nepenthaceae)".〔 The authors retained this synonymy in their 2001 work, "Nepenthaceae".〔 The type population of ''N. surigaoensis'' was rediscovered in 2007 by Thomas Gronemeyer and Volker Heinrich.〔 Subsequent research by these authors led to a proposal in a 2008 issue of the German-language journal ''Das Taublatt'' to elevate the taxon to species level once more.〔 Gronemeyer, T. & V. Heinrich 2008. Wiederentdeckung von ''Nepenthes surigaoensis'' am Naturstandort auf den Philippinen. ''Das Taublatt'' 60(1): 28–33.〕 This was supported by Stewart McPherson in his 2009 monograph, ''Pitcher Plants of the Old World'', which included an extensive morphological description of the species.〔 ''Nepenthes surigaoensis'' has in the past been mistaken for a hybrid. In Yasuhiro Fukatsu's "The List of ''Nepenthes'' species and Hybrids", published in 1999,〔 ''N. surigaoensis'' was said to represent a cross between ''N. alata'' and possibly ''N. merrilliana'' (a hybrid that has been called ''N. × merrilliata'').〔 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 surigaoensis」の詳細全文を読む スポンサード リンク
|