A Flora of Thailand synopsis recognises nine Thai Lepidagathis species, describes L. argentea from limestone in Tak as new, records L. dulcis, L. purpuricaulis and L. thorelii for Thailand, reduces two names to synonymy and lectotypifies six names.
Key findings
- Nine species are recognised. L. argentea is newly described from Tak limestone, three species are new national records, L. chiengmaiensis and L. thyrsiflora are synonymised under L. incurva and L. fasciculata, and six names receive lectotypification.
Why this matters globally
Stable taxonomy supports global databases, protected-area assessment and phylogeny, while limestone endemism highlights the need for urgent field surveys.
Thai researcher contribution
Ubon Ratchathani and Khon Kaen researchers worked directly on Thai specimens and flora, producing biodiversity infrastructure led by Thai institutions.
Limitations to consider
Distributions may reflect collection gaps. Population size, trend, threats and population genetics are not reported, and morphology-led delimitation may need molecular phylogeny for difficult complexes.