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Issue: Vol. 689 No. 2: 24 Feb. 2025
Type: Article
Published: 2025-02-24
DOI: 10.11646/phytotaxa.689.2.12
Page range: 285-290
Abstract views: 645
PDF downloaded: 12

Nepenthes higaonon (Nepenthaceae), a new species of pitcher plant from the northern Mindanao, Philippines

Plant Biology Division, Institute of Biological Sciences, College of Arts and Sciences, Central Mindanao University, Musuan Bukidnon, Philippines
Human Resources for Health - National Health Workforce Support System, Department of Health Center for Health Development - Northern Mindanao
Baliguihan-Higaonon Ancestral Domain
Center for Biodiversity Research and Extension in Mindanao (CEBREM) and Plant Biology Division, Institute of Biological Sciences, College of Arts and Sciences, Central Mindanao University, Musuan Bukidnon, Philippines
Nepenthes new species northern Mindanao Misamis Oriental Eudicots

Abstract

Nepenthes higaonon (section Alatae) is described as a new species from the gravel substrates of northern Mindanao, Philippines. It is morphologically similar to N. viridis from which differs in having a non-decurrent leaf-to-stem attachment (vs. slightly decurrent in N. viridis), rounded leaf apex (vs. acute), 3 longitudinal veins on each side of the midrib (vs. 1–2), monomorphic pitchers (vs. dimorphic) aerial pitchers cylindrical upper 1/3rd (vs. infundibular upper 1/3rd), aerial pitcher lid flattened, ovate, angled up to 90° completely exposing the opening (vs. domed, oval to cordate, angled up to ca. 60 ° covering the opening), aerial pitcher peristome anterior with shallow depression (vs. often raised), inflorescence 1-flowered (vs. 2-flowered), and by its climbing stems up to ca. 10 m (vs. up to ca. 4 m). The species described is assessed herein as Critically Endangered according to IUCN criteria, facing threats of poaching, shifting cultivation, without legislative protection and calls for immediate conservation efforts.

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How to Cite

Lagunday, N.E., Baul, M.J.G., Ansihagan, R.P. & Amoroso, V.B. (2025) Nepenthes higaonon (Nepenthaceae), a new species of pitcher plant from the northern Mindanao, Philippines. Phytotaxa 689: 285–290. https://doi.org/10.11646/phytotaxa.689.2.12