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Issue: Vol. 489 No. 2: 4 March 2021
Type: Article
Published: 2021-03-04
DOI: 10.11646/phytotaxa.489.2.12
Page range: 229–235
Abstract views: 22
PDF downloaded: 2

Amorphophallus calcicolus (Thomsonieae, Araceae), a new species from the Bohol island, Central Visayas, Philippines

Department of Biology, College of Science, University of the Philippines Baguio, Governor Pack Road, City of Baguio, 2600 Philippines
Department of Biology, College of Science, University of the Philippines Baguio, Governor Pack Road, City of Baguio, 2600 Philippines
Forestry and Environmental Science Department, College of Agriculture and Natural Resources, Bohol Island State University, Bilar Campus, Bohol, 6317 Philippines
Forestry and Environmental Science Department, College of Agriculture and Natural Resources, Bohol Island State University, Bilar Campus, Bohol, 6317 Philippines Institute of Renewable Natural Resources, College of Forestry and Natural Resources, University of the Philippines Los Baños, College Laguna, 4030 Philippines
Department of Biology, College of Science, University of the Philippines Baguio, Governor Pack Road, City of Baguio, 2600 Philippines
aroids karst Loboc watershed Malesia monocots taxonomy

Abstract

Amorphophallus calcicolus from the forest over karst of Bohol island, Central Visayas, Philippines is hereby described and illustrated. The species is closely related to A. longispathaceus but distinct in having shorter leaves, smaller male zone, depressed disk-shaped ovary, longer styles, ovoid or irregularly shaped warts inside the spathe base, and shallowly 2–3-lobed stigma. Due to anthropogenic factors and a relatively confined distribution, it is hereby proposed as Critically Endangered (CR) following IUCN guidelines.