Nepenthes deaniana
Definition
Nepenthes deaniana is a tropical pitcher plant endemic to the Philippines, growing at altitudes of about 1,180–1,296 meters. It is known only from the summit region of Thumb Peak, a relatively small ultramafic mountain in Puerto Princesa province on the island of Palawan.
Identities
| Source Type | Identity |
|---|---|
| Wikipedia | Nepenthes deaniana |
| Wikidata | Q4912254 |
| DBpedia | N/A |
Also Known As
The Thumb Peak pitcher plant; the epithet honors Dean, associated with the original collection of the species in the late nineteenth century.
Examples and Analogies
N. deaniana is Palawan’s version of a lighthouse species: confined to one small summit, it flags the distinctiveness of the island’s ultramafic peaks much as N. attenboroughii does for the Mount Victoria region.
Usage Scenarios
The species appears in Palawan biodiversity research, carnivorous-plant taxonomic literature, and conservation assessments of ultramafic summit habitats in the Philippines.
Strategies
Its protection depends on the intactness of Thumb Peak’s summit forest: restricting access and collection, studying its ecology before populations are disturbed, and keeping locality details general in public materials.
Security and Safety Measures
Because it occupies so small an area, even limited collecting could damage populations; research and mountaineering on the peak operate under permits, and the site’s remoteness is itself a shield.
Historical Context
N. deaniana belongs to the late-colonial era of Philippine botany, when specimens from Palawan’s mountains first reached European herbaria. Like several other Palawan Nepenthes, it was long known from scant material before modern expeditions confirmed its distinctness and narrow range.
Challenges and Controversies
Single-summit endemism on an ultramafic peak leaves the species vulnerable to mining interest in Palawan’s nickel-bearing soils and to collecting; the balance between mineral development and summit protection is a recurring Palawan controversy.
Related Topic
Nepenthes attenboroughii — Palawan’s giant pitcher plant, discovered on the island’s remote central peaks