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Type: Article
Published: 2022-08-19
Page range: 88-94
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Taxonomy of the genus Begonia (Begoniaceae) in Mindanao, Philippines IV: Begonia bangsamoro subsp. bagasa (Begonia section Petermannia), a new subspecies from Zamboanga del Sur

Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; University of Chinese Academy of Sciences, Beijing 100049, China; Jose Rizal Memorial State University, Tampilisan Campus, Znac, Tampilisan 7116, Zamboanga del Norte, Philippines
Zamboanga del Sur Provincial Government College, Pagadian City, 7016, Philippines
Zamboanga del Sur Provincial Government College, Pagadian City, 7016, Philippines
College of Science and Research Center for the Natural and Applied Sciences, University of Santo Tomas, España, Manila, 1015 Philippines
Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; Yunnan Key Laboratory for Conservation on Tropical Rainforests and Asian Elephants, Mengla 666303, China
Checklist endemic Mount Timolan taxonomy Zamboanga Peninsula Eudicots


A subspecies new to science, Begonia bangsamoro subsp. bagasa Naive (section Petermannia) discovered in Zamboanga del Sur, Western Mindanao, Philippines is herewith described and illustrated. The new subspecies differs significantly from the type subspecies in having staminate and pistillate flowers with very narrow tepals. A colour plate, notes on its distribution, habitat, phenology, proposed conservation assessment based on IUCN criteria as well as a checklist of Begonia species present in Zamboanga Peninsula are provided. With this discovery, Zamboanga Peninsula now holds a total of 17 Begonia taxa, and the very first subspecies described for the Philippine archipelago.


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