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Issue: Vol. 470 No. 3: 5 November 2020
Type: Article
Published: 2020-11-05
DOI: 10.11646/phytotaxa.470.3.2
Page range: 226–234
Abstract views: 78
PDF downloaded: 1

Begonia makuruyot (Begoniaceae, section Baryandra), a new species from Surigao del Norte Province, Philippines

Department of Environmental Studies, Mindanao State University, Marawi, Lanao del Sur 9700, Philippines.
Philippine Taxonomic Initiative, Inc., Botanica Building, El Nido, Palawan, Philippines.
Department of Biology, College of Arts and Sciences, University of the Philippines Manila, Padre Faura Street, Ermita, Metro Manila 1000, Philippines.
Department of Biological Sciences, Institute of Art and Sciences, Far Eastern University, Nicanor Reyes Sr. Street, Sampaloc 1015, Manila, Philippines.
Philippine Taxonomic Initiative, Inc., Botanica Building, El Nido, Palawan, Philippines.
National Herbarium of Victoria, Royal Botanic Gardens Melbourne, Melbourne, VIC 3004, Australia.
endemic Eudicots Malesia Mindanao karst taxonomy

Abstract

A new Begonia species, Begonia makuruyot, from B. section Baryandra is described and illustrated from forests over limestone in Surigao del Norte. This distinctive species, which appears to be endemic to the type locality, inhabits shaded limestone walls along the Daywan River at an elevation of 10–50 metres above sea level. Begonia makuruyot is distinguished from other Philippine Begonia by its rugose laminae, pendent leaves, pilose petioles and stipules fused with fleshy, aristate trichomes that are occasionally branching. A comparison with the phenetically similar B. acuminatissima is provided. Based on IUCN Red List criteria, B. makuruyot is designated Critically Endangered (CR).