Nepenthes dubia
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 Upper pitcher of Nepenthes dubia. Mount Talakmau, Sumatra.
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| Nepenthes dubia Danser (1928) |
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Nepenthes dubia (Latin: dubius = doubtful) is a highland Nepenthes pitcher plant species, native to Sumatra. It is closely related to N. inermis, but does not completely lack a peristome in the upper pitchers as in the latter.
| Character | N. bongso | N. dubia | N. talangensis | N. tenuis |
|---|---|---|---|---|
| Shape of upper pitchers | tubulate - infundibulate | tubulous in the lower part, infundibulate above the middle | tubulous to narrow infundibuliform in the lower half, ovate in the upper half | wide infundibulate, contracted below the mouth |
| Lid | orbiculate | narrow cuneate | broad-ovate | very narrow elliptical |
| Length/width ratio of upper pitchers | 3,3 | 1,9 | 2,3 | 1,75 |
[edit] References
- Clarke et al. (2000). Nepenthes dubia. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 06 May 2006. Listed as Critically Endangered (CR B1+2e, D v2.3)
- Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu, pp. 122-124.
- Nerz, J. & A. Wistuba 1994. Five new taxa of Nepenthes (Nepenthaceae) from North and West Sumatra. Carnivorous Plant Newsletter 23(4): 101-114.
Miscellaneous: Nepenthes classification • Nepenthes infauna
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