Nepenthes singalana
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 Lower pitcher of Nepenthes singalana. Cultivated plant.
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| Nepenthes singalana Becc. (1886) |
Nepenthes singalana (after Mount Singgalang, West Sumatra) is a highland Nepenthes pitcher plant species native to the island of Sumatra. It is most closely related to N. diatas and N. spathulata.
| Character | N. lavicola | N. singalana | N. spectabilis |
|---|---|---|---|
| Shape of lower pitchers | urceolate to globose | basal part infundibuliform, cylindrical in the upper part | ovate in the lower part, cylindrical in the upper part |
| Shape of upper pitchers | slender, lower part infundibuliform to ovate then ventricose, slightly hipped in the middle narrowing to the somewhat waisted cylindrical upper part | lower half infundibuliform, mostly ventricose in the middle, cylindrical or slightly narrowed towards the mouth | infundibuliform in the lower half, tubulose in the upper half |
| Colour of pitchers | usually dark brownish purple to almost black, peristome yellowish green, sometimes with red stripes, occasionally colour of pitchers yellowish green with blackish spots, innerside of the pitchers pale green, in the lower pitchers red spotted | light green to dark red, violett spotted or not | light green, with numerous longitudinal dark violett - brown stripes and spots |
| Lid | ovate-cordate | suborbicular, cordate at the base | orbiculate |
| Spur | up to 0.5 cm in length, branched in case of lower pitchers | 2-3 mm, slightly flattened, not branched | 2 cm in length, simple |
| Spur insertion | close to the lid base | close to the lid | 5-10 mm below the lid base |
| Floral bracts | bracts very prominent, usually overarching the flowers, some of the lower ones reaching several cm in length | male: filiform bract, female: without bract | pedicels bearing filiform bracts |
| Fruit | 2-3 times as long as broad, up to 1.8 cm long | up to 30 mm long | very slender, 4-5 cm in length |
[edit] References
- Clarke et al. (2000). Nepenthes singalana. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Listed as Vulnerable (VU D2 v2.3)
- Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu, pp. 184-187.
- Wistuba, A. & H. Rischer 1996. Nepenthes lavicola, a new species of Nepenthaceae from the Aceh Province in the North of Sumatra. Carnivorous Plant Newsletter 25(4): 106-111.
Miscellaneous: Nepenthes classification • Nepenthes infauna
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