Nepenthes tobaica
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Nepenthes tobaica |
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Lower pitchers of Nepenthes tobaica. Cultivated plant.
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Scientific classification | ||||||||||||||
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Nepenthes tobaica Danser (1928) |
Nepenthes tobaica (after Lake Toba) is a highland Nepenthes pitcher plant species native to the Sumatra. It is closely related to N. angasanensis and N. mikei.
Character | N. angasanensis | N. mikei | N. tobaica |
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Habit | Produces offshoots from underground rhizomes | No rhizomes | No rhizomes |
Spur | Forked | Fasciculate | Filiform |
Inner margin of peristome | Teeth to 1.5-2 mm long | Teeth to 0.2-0.4 mm long | Teeth < 0.2 mm |
Stem cross section | Cylindrical | Cylindrical | Cylindrical to obtusely triangular |
Bracteoles | Sometimes near base of lowest pedicel only | Half way up every pedicel | At base or slightly below pedicel attachment, few |
Pitcher glands | 300 / cm² | 150-180 / cm² | 200-250 / cm² |
Pedicels | 1-flowered | 1-flowered | 2-flowered |
Inflorescence (female) | 55-125 mm long, 9-17 flowers | 40-80 mm long, 4-10 flowers | 195-400 mm long, 30-50 flowers |
[edit] References
- Clarke et al. (2000). Nepenthes tobaica. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006.
- Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu, pp. 202-204.
- Salmon, B. & R. Maulder 1999. Notes on Nepenthes from Northern Sumatra. Carnivorous Plant Newsletter 28(1): 14-18.
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Miscellaneous: Nepenthes classification • Nepenthes infauna