ウツボカズラ属の種一覧
このウツボカズラ属の種一覧では、食虫植物であるウツボカズラ属の知られているすべての種の包括的な一覧である。認識された170種の現存種、2種の未記載(incompletely diagnosed taxa)、3種の交雑種(nothospecies)を含む。また3種の絶滅種も含まれている。
それぞれの種のIUCNによる公式の保全状況は、レッドリスト最新版から取得した[1]。IUCNの基準に基づいた非公式の保全状況も含まれるが、それらはイタリック体で記載した。特に断りのない限り、分類学上の決定および他のすべての情報は、2009年に出版されたから供給されたスチュワート・マクファーソンの「Pitcher Plants of the Old World」によった[2]。「Pitcher Plants of the Old World」の掲載範囲外である生育分布の標高は他の最新の文献によったため、データの不一致があることを注意する。
それぞれの種の地理的範囲にあるすべての主要な島が含まれている。それより小さな周辺の島々については、網羅されていないが、別途「少数の島々」として挙げている。フィリピンのような群島の場合、自生している個々の島については、括弧内に示した。
命名者は、International Plant Names Indexで指定された略語で示した[3]。年号は、規約に沿った正式な手続きで命名された年であるが、Basionymが存在する場合、Basionymが命名された年とした。
現存種
[編集]未記載種
[編集]次の未記載種(undescribed taxa)は、書籍「Pitcher Plants of the Old World」とその補足書で2011年出版の「New Nepenthes: Volume One」[48]から引用した。
タクソン | 画像 | 分布地 | 分布地高度 |
---|---|---|---|
Nepenthes sp. Anipahan[86] | フィリピン (パラワン島)[86] | 1200–1400 m[86] | |
Nepenthes sp. Misool | ラジャ・アンパット諸島 (ミソール島) | 0–30 m |
交雑種
[編集]Matthew JebbとMartin Cheekは、ウツボカズラ類の研究論文("A skeletal revision of Nepenthes (Nepenthaceae)" (1997) and "Nepenthaceae" (2001))にて3種の交雑種を認証した。最新の文献によると、それらのタクサは一般に種とよりむしろ自然交配として扱っている[2][18][24][25]。3種のうちN. × kinabaluensisは、種として扱うべきとの主張が最も高いが、それらの2大生育地では、親種と推測されている種に依存している[24][87] 。それらの生育地では、何世代にもわたって同じ特徴を示している[24]。Jumaat Haji AdamとC. C. Wilcockは、1998年発表の記事にて、N. × kinabaluensisは、種として認識するよう提唱した[88]。
交雑種 | 親種 | 命名者 | 年号 | 画像 | 分布地 | 分布地高度 | IUCN保全状況 |
---|---|---|---|---|---|---|---|
Nepenthes × hookeriana | N. ampullaria × N. rafflesiana | Hort.Veitch ex Mast. | 1881 | ボルネオ島, 半島マレーシア, シンガポール, スマトラ島[34] | 0–450 m[8] | 低危険種[20] | |
Nepenthes × kinabaluensis | N. rajah × N. villosa | Sh.Kurata ex Sh.Kurata | 1984 | ボルネオ島[34] | 2420–3030 m[34] | 絶滅危惧種[20] | |
Nepenthes × trichocarpa | N. ampullaria × N. gracilis | Miq. | 1858 | ボルネオ島, 半島マレーシア, シンガポール, スマトラ島,[34] タイ王国[78] | 0–800 m[24] | 低危険種[20] |
絶滅種
[編集]世界の各地から採取された花粉の化石のうち、その多くは、form taxonであるDroseridites属に分類されていたが、いくつかの著者によってウツボカズラ属に暫定的に割り当てられた[89][90][91] 。以下の3種は1985年ウィルフリード・クラッツスチによってウツボカズラ属に移した [89]
種 | 命名者 | 年号 | 地域 | 年代 |
---|---|---|---|---|
Nepenthes echinatus | (Hunger) Krutzsch | 1985 | ヨーロッパ | 暁新世 |
Nepenthes echinosporus | (R.Potonié) Krutzsch | 1985 | ヨーロッパ | 暁新世 |
Nepenthes major | (Krutzsch) Krutzsch | 1985 | ヨーロッパ | 暁新世 |
Droseridites major と Droseridites parvusは、Nepenthidites laitryngewensisのシノニムと考える著者もいる[92][93] 。
南インド洋にあるフランス領南方・南極地域のケルゲレン諸島から採取された花粉の化石は、元々Droseridites spinosusと命名されたが、ウツボカズラ属の植物であると解釈する文献もある[94]
関連項目
[編集]脚注
[編集]- ^ a b Under the narrow circumscription of Cheek & Jebb (2013), N. alata is restricted to northern Luzon, with the more southerly plants previously referred to this species actually representing N. graciliflora, N. negros, and N. ramos.[7] This N. alata sensu stricto has an altitudinal distribution of 550 m and above.[7]
- ^ Adam, Wilcock & Swaine (1992) give an upper altitudinal limit of 1200 m for N. albomarginata.[8]
- ^ Adam, Wilcock & Swaine (1992) cite a record of N. bicalcarata from Mount Periok in Brunei at c. 1600 m.[8]
- ^ Cheek & Jebb (2001) give a range of 780–1880 m for N. boschiana,[24] while Clarke (1997) gives a range of 900–1880 m.[25]
- ^ Cheek & Jebb (2001) give an upper altitudinal limit of 2250 m for N. burbidgeae,[24] while Adam, Wilcock & Swaine (1992) give a range of 1100–2300 m.[8]
- ^ Cheek & Jebb (2001), Clarke (1997) and Adam, Wilcock & Swaine (1992) give a lower altitudinal limit of 1500 m for N. edwardsiana.[8][24][25]
- ^ Cheek & Jebb (2001) give a lower altitudinal limit of 1000 m for N. ephippiata.[24] The species has reportedly been collected from Bukit Raya at 2000–2270 m.[8][31]
- ^ Adam, Wilcock & Swaine (1992) give an upper altitudinal limit of 1700 m for N. gracilis.[8]
- ^ Adam, Wilcock & Swaine (1992) give a range of 150–1500 m for N. hirsuta,[8] while Mansur & Brearley (2008) report finding it at elevations as low as 160 m.[43]
- ^ Cheek & Jebb (2001) give a lower altitudinal limit of 1600 m for N. lowii,[24] while Adam, Wilcock & Swaine (1992) give a range of 900–3400 m.[8]
- ^ The lower altitudinal limit of 2000 m given for N. macrophylla in some older sources[54] is apparently incorrect.[2][55]
- ^ Adam, Wilcock & Swaine (1992) give a lower altitudinal limit of 250 m for N. macrovulgaris.[8]
- ^ Adam, Wilcock & Swaine (1992) give an upper altitudinal limit of 1500 m for N. rafflesiana.[8]
- ^ The paratype of N. ramos was collected at 670 m[71] and N. kurata (which has been synonymised with N. ramos[6]) has been recorded at c. 1400 m.[33]
- ^ Rybka, Rybková & Cantley (2005) give a range of 1200–1800 m for N. sibuyanensis,[75] while the authors of the describing paper give a range of 1500–1800 m.[76]
- ^ Mansur & Brearley (2008) report finding N. stenophylla at 400 m.[43]
- ^ 記載を行ったアドルフ・ダニエル・エドワード・エルマーによれば、Nepenthes surigaoensis は高度1750メートルほど(原記載文献では「5750フィート」という書き方)の場所に生育する[81]。
- ^ Cheek & Jebb (2001) give an upper altitudinal limit of 2750 m for N. tobaica.[24]
- ^ Cheek & Jebb (2001) give an upper altitudinal limit of 500 m for N. treubiana.[24]
- ^ The upper altitudinal limit of 400 m is uncertain as it is based on the figure given on Google Earth for an "inexact grid-reference" associated with a herbarium specimen.[83]
- ^ Nepenthes villosa generally grows at elevations of 2300–3240 m, but is more common at 1600–1900 m on Mount Tambuyukon.[2] Adam, Wilcock & Swaine (1992) give an upper altitudinal limit of 3400 m for this species.[8]
参照文献
[編集]- ^ IUCN 2009. Nepenthes. In: IUCN Red List of Threatened Species. Version 2009.1. IUCN.
- ^ a b c d McPherson, S.R. 2009. Pitcher Plants of the Old World. 2 volumes. Redfern Natural History Productions, Poole.
- ^ Author Query. International Plant Names Index.
- ^ a b c d e f Cheek, M. & M. Jebb 2013. Identification and typification of Nepenthes blancoi, with N. abalata sp. nov. from the western Visayas, Philippines. Nordic Journal of Botany 31(2): 151–156. doi:10.1111/j.1756-1051.2012.00012.x
- ^ a b c d e f g h i j k l Cheek, M. & M. Jebb 2013. The Nepenthes micramphora (Nepenthaceae) group, with two new species from Mindanao, Philippines. Phytotaxa 151(1): 25–34. doi:10.11646/phytotaxa.151.1.2
- ^ a b c d e f g h i j k l m n o Gronemeyer, T., W. Suarez, H. Nuytemans, M. Calaramo, A. Wistuba, F.S. Mey & V.B. Amoroso 2016. Two new Nepenthes species from the Philippines and an emended description of Nepenthes ramos. Plants 5(2): 23. doi:10.3390/plants5020023
- ^ a b c d e f g h i j k l m 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. doi:10.1111/j.1756-1051.2012.00099.x
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- ^ a b c d Abstract Mansur, M. 2012. Keanekaragaman jenis tumbuhan pemakan serangga dan laju fotosintesisnya di Pulau Natuna. [Diversity on insectivorous plants and its photosynthetic rate in Natuna Island.] Berita Biologi 11(1): 33–42.
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