TABLE 1. Morphological comparisons of Nymphanthus namkadingensis with N. chantaranothaii, N. glaucescens, and N. rubescens. The characteristics are derived from Beille (1927) and Pham (2003) (N. glaucescens & N. rubescens), Chantaranothai (2007), and Li & Gilbert (2008) (N. glaucescens), and Pornpongrungrueng et al. (2019) (N. chantaranothaii). Size of stipules of N. rubescens is measured on digitized herbarium specimens listed in Appendix 1. CharactersN. namkadingensisN. chantaranothaiiN. glaucescensN. rubescensSize of stipule (mm)3–9 × 1–21.4–2 × 0.1–0.41.3–4 × 1.5–20.5–1 × 0.5–0.7Number of lateral nerves of lamina8–12 pairs4–7 pairs4–6 pairsNA (barely visible)Length of pedicel (mm)♂: 4–8, ♀: 10–16♂: 5–11, ♀: 8–11♂: 5–15, ♀: 14–25♂: 1.5, ♀: 2.5Sepal of staminate and pistillate flowersapex not fimbriate, margin undulate, almost entireapex and margin fimbriateapex and margin fimbriateapex not fimbriate, margin entireDisc of pistillate flowerconnate, annularfree, obovateconnate, annularfree, rectangular

Published as part of Yamamoto, Takenori, Souladeth, Phetlasy, Phonepaseuth, Phongphayboun, Kongxaisavath, Deuanta, Vongthavone, Thyraphon, Vuong, Truong Ba, Trong, Pham Quoc, Souvannakhoummane, Keooudone & Tagane, Shuichiro, 2024, Nymphanthus namkadingensis, a new species of Phyllanthaceae from Laos, pp. 200 in Phytotaxa 650 (3) on page 200, DOI: 10.11646/phytotaxa.650.3.1, http://zenodo.org/record/13216386