Abstract
With 50 species of the genus Nepenthes L. currently described from the Philippines, it is without doubt that the country, along with the islands of Sumatra (Indonesia) and Borneo (Indonesia, Malaysia, Brunei), should be considered the center of diversity of the genus. In this work, we describe two new species. One species, N. aenigma sp. nov., is from Ilocos Norte province on Luzon Island and has the—for Nepenthes—unusual ecological preference to grow in dense vegetation in deep shade. The other new species is from Mount Hamiguitan in Davao Oriental province on Mindanao Island. With this new entry, Mount Hamiguitan is now home to four endemic species (N. peltata, N. micramphora, N. hamiguitanensis, N. justinae sp. nov.). Furthermore, we provide an emended description of N. ramos based on field data. Nepenthes kurata is synonymized here with N. ramos.
Highlights
The past few years have seen the description of several new Nepenthes species from the Philippines, thanks largely to expeditions undertaken in the last decade ([1,2] and references therein)
Most of the species described were from the islands of Palawan and Mindanao, which perhaps reflected how little was known about the Nepenthes flora of the Philippine archipelago
We describe two new species based on field research, namely N. aenigma, a new species from Luzon, and N. justinae from the world heritage site Mount Hamiguitan (Mindanao)
Summary
The past few years have seen the description of several new Nepenthes species from the Philippines, thanks largely to expeditions undertaken in the last decade ([1,2] and references therein). Recent years have witnessed a number of new species descriptions, most of them exclusively based on herbarium material collected over a span of several decades [3,4,5,6,7,8,9,10]. Tayabas ( Quirino) in June 1925 [4], and N. ultra from specimens collected by Ridsdale in Zambales in 1986 [5] Mindanao like those of N. kurata, N. extincta or N. cid are based on incomplete herbarium specimens lacking flowers or even characteristical pitchers that allow the identification of the respective species in the field. We describe two new species based on field research, namely N. aenigma, a new species from Luzon, and N. justinae from the world heritage site Mount Hamiguitan (Mindanao)
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