Vol. 79 No. 2 (2024)
Articles

Amorphophallus samarensis (Araceae), a new species endemic to Samar Island, Eastern Visayas, Philippines

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  • Norilyn Fontarum-Bulawin,
  • Maria Melanie Medecilo-Guiang,
  • Grecebio Jonathan D. Alejandro
Norilyn Fontarum-Bulawin
The Graduate School, University of Santo Tomas, Manila 1008
Bio
Maria Melanie Medecilo-Guiang
Department of Biology/Center for Biodiversity Research and Extension in Mindanao (CEBREM), Central Mindanao University, Bukidnon 8714
Grecebio Jonathan D. Alejandro
The Graduate School, University of Santo Tomas, Manila 1008
Bio
DOI: https://doi.org/10.36253/jopt-16302

Published 2024-09-03

Keywords

  • Amorphophallus calcicola,
  • biodiversity,
  • conservation,
  • critically endangered,
  • taxonomy

How to Cite

Fontarum-Bulawin, N., Medecilo-Guiang, M. M., & Alejandro, G. J. D. (2024). Amorphophallus samarensis (Araceae), a new species endemic to Samar Island, Eastern Visayas, Philippines. Webbia, 79(2), 295–303. https://doi.org/10.36253/jopt-16302

Copyright (c) 2024 Norilyn Fontarum-Bulawin, Maria Melanie Medecilo-Guiang, Grecebio Jonathan D. Alejandro

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Amorphophallus samarensis is described as a new species from Paranas, Samar Island Natural Park, Samar Eastern Visayas, Philippines. A. samarensis resembles A. calcicola by having a solitary leaf, long peduncled solitary flower, cylindric female zone, ovary depressed, disk shape, slightly distant ovaries, and absence of staminode. It differs from A. calcicola by having the rachis winged at the distal part of the leaf, pale to dark maroon slightly depressed globose capitate stigma, style color, length of spadix, and truncate anther. The new species is considered Critically Endangered (CR) based on IUCN guidelines due to persistent anthropogenic activities. There are 30 individual plants encountered in the locality with less than 100 sq. km area of occupancy with an observed threat.

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