Vol. 80 No. 1 (2025)
Articles

Begonia gigang (section Petermannia: Begoniaceae), a new species from Zamboanga Peninsula, Mindanao Island, Philippines

Kean Roe F. Mazo
Department of Forest Sciences, College of Environment and Life Sciences, Mindanao State University at Naawan, Naawan 9023, Misamis Oriental, Philippines
Rosario R. Rubite
Department of Biology, College of Arts and Sciences, University of the Philippines Manila, Padre Faura, Manila, Philippines

Published 2025-04-17

Keywords

  • Begonia corazoniae,
  • Begonia tinuyopensis,
  • endangered,
  • endemic,
  • taxonomy

How to Cite

Mazo, K. R. F., & Rubite, R. R. (2025). Begonia gigang (section Petermannia: Begoniaceae), a new species from Zamboanga Peninsula, Mindanao Island, Philippines. Webbia, 80(1), 89–94. https://doi.org/10.36253/jopt-17444

Abstract

A new species of Begonia from Zamboanga del Norte, Mindanao Island, Philippines, is described. Begonia gigang is morphologically similar to Begonia corazoniae but can be distinguished by having smaller leaves which are hirsute on both surfaces, longer panicles and peduncles, shorter pedicels for both staminate and pistillate flowers, and trigonous-ellipsoid ovary. Begonia gigang is assessed as Endangered under the IUCN Red List Categories and Criteria. A detailed description, photographs, and ecological notes, and are provided.

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