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''Nepenthes ramos'' is a tropical pitcher plant native to northeastern Mindanao, the Philippines.〔 It is known from only a handful of herbarium specimens collected in 1919 at an elevation of 670 m above sea level. It likely grows in forest on ultramafic soils.〔 ''Nepenthes ramos'' belongs to the informal "''N. alata'' group", which also includes ''N. alata'', ''N. ceciliae'', ''N. copelandii'', ''N. extincta'', ''N. graciliflora'', ''N. hamiguitanensis'', ''N. kitanglad'', ''N. kurata'', ''N. leyte'', ''N. mindanaoensis'', ''N. negros'', ''N. saranganiensis'', and ''N. ultra''.〔Cheek, M. & M. Jebb 2013. Recircumscription of the ''Nepenthes alata'' group (Caryophyllales: Nepenthaceae), in the Philippines, with four new species. ''European Journal of Taxonomy'' 69: 1–23. 〕〔Cheek, M. & M. Jebb 2013. Typification and redelimitation of ''Nepenthes alata'' with notes on the ''N. alata'' group, and ''N. negros'' sp. nov. from the Philippines. ''Nordic Journal of Botany'' 31(5): 616–622. 〕〔〔Cheek, M. & M. Jebb 2013. ''Nepenthes ultra'' (Nepenthaceae), a new species from Luzon, Philippines. ''Blumea'', published online on October 24, 2013. 〕 These species are united by a number of morphological characters, including winged petioles, lids with basal ridges on the lower surface (often elaborated into appendages), and upper pitchers that are usually broadest near the base.〔〔 The specific epithet ''ramos'' honours Philippine botanical collector Maximo Ramos, who collected the type material with J. Pascasio.〔 Plants matching the description of ''N. ramos'' have been observed in the Mindanao provinces of Bukidnon, Davao Oriental, and Surigao, and on an "isolated mountain" on an undisclosed island around 120 km from the type locality.〔Gronemeyer, T. 2015. (''Nepenthes ramos'' located in the field ). Carnivorous Plants in the tropics, 5 January, 2015. 〕〔 Gronemeyer, T. 2014. (''Nepenthes ramos'' am Naturstandort ). G.F.P. Forum, November 29, 2014. 〕 These discoveries suggest that ''N. ramos'' might be the most common member of the "''N. alata'' group" on the island of Mindanao.〔 ==References== * Mey, F.S. 2013. (''Nepenthes alzapan'' and an army of new species from the Philippines ). ''Strange Fruits: A Garden's Chronicle'', July 15, 2013. * Micheler, M., T. Gronemeyer, A. Wistuba, D. Marwinski, W. Suarez & V. Amoroso 2013. ''Nepenthes viridis'', eine neue ''Nepenthes''-Art von der Insel Dinagat, Philippinen. ''Das Taublatt'' 76: 4–21. * Smith, L. 2014. (Pitcher perfect - but carnivorous plants are at risk ). ''The Independent'', January 5, 2014. 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 ramos」の詳細全文を読む スポンサード リンク
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