| 词条 | Nepenthes ultra |
| 释义 |
|image = |image_caption = |genus = Nepenthes |species = ultra |authority = Jebb & Cheek (2013)[1] |synonyms = }}Nepenthes ultra is a tropical pitcher plant native to the Philippine island of Luzon, where it grows at low altitude on ultramafic soils (hence the name).[1]Nepenthes ultra belongs to the informal "N. alata group",[1] 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. ramos, and N. saranganiensis.[2][3][4] 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.[2][3] References1. ^1 2 Cheek, M. & M. Jebb 2013. Nepenthes ultra (Nepenthaceae), a new species from Luzon, Philippines. Blumea, published online on October 24, 2013. {{DOI|10.3767/000651913X675124}} 2. ^1 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. {{DOI|10.5852/ejt.2013.69}} 3. ^1 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}} 4. ^Cheek, M. & M. Jebb 2013. Nepenthes ramos (Nepenthaceae), a new species from Mindanao, Philippines. Willdenowia 43(1): 107–111. {{DOI|10.3372/wi.43.43112}}
3 : Carnivorous plants of Asia|Nepenthes|Plants described in 2013 |
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