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| Begonia sordidissima Elmer, in Naive, Along, Rozano et Ruales, 2025. |
Abstract
Begonia sordidissima has been considered as a synonym of B. mindorensis since 1923. Our recent fieldwork led to the rediscovery of B. sordidissima in Mindanao after more than a century, prompting a detailed morphological study that confirms its reinstatement as a distinct species. We designate lectotypes for both names and provide an emended description, including new data on pistillate flowers, photographs, updated distribution information, habitat preference, and a preliminary IUCN conservation assessment. This work underscores the critical need for continued field exploration and taxonomic revision in biodiversity-rich yet threatened regions such as the Philippines.
Biodiversity hotspot, megadiversity, nomenclature, Philippines, section Baryandra, Eudicots
Begonia sordidissima Elmer (1915)
MARK ARCEBAL K. NAIVE, ARCHIE A. ALONG, RALPH RJ E. ROZANO and JECO JED J. RUALES. 2025. Resolving a Taxonomic Enigma: Rediscovery of the Mindanao endemic Begonia sordidissima (Begoniaceae) after over a Century confirms its distinct status from B. mindorensis. Phytotaxa. 730(3); 269-276. DOI: doi.org/10.11646/phytotaxa.730.3.4 [2025-11-21]
x.com/begoniARCIIae/status/1991703043910639991
