taxonID	type	description	language	source
8BA0674D51245823BB85A8D971729B2A.taxon	description	Figs 2, 3	en	Xiong, Chi, Wang, Xiao, Fu, Xiao-Ying, Luo, Kang, Huang, Ya, Zhang, Hong-Jing, Yi, Si-Rong (2025): Lysimachia nanshanensis (Primulaceae), a new species from southwest Hunan, China. PhytoKeys 262: 191-202, DOI: 10.3897/phytokeys.262.153293
8BA0674D51245823BB85A8D971729B2A.taxon	diagnosis	Diagnosis. Lysimachia nanshanensis belongs to ser. Paridiformes F. H. Chen & C. M. Hu (Chen and Hu 1979: 36) and is similar to L. sciadantha C. Y. Wu (Wu 1965: 53) by sharing some morphological characters, such as the middle and lower leaves bract-like and opposite, upper leaves clustering at the stem top, flowers densely on umbel. But differs from L. sciadantha in leaves 4 – 6 (vs. 4) in a whorl, subpapery (vs. stiffly papery), elliptic, ovate to obovate (vs. elliptic), apex obtuse to mucronate (vs. acute to short acuminate), umbels terminal without peduncle (vs. peduncle 1.8 – 6 cm long), pedicel 3 – 6 cm (vs. 1.2 – 2.5) long, filaments almost free (vs. base tube 3 – 3.5 mm).	en	Xiong, Chi, Wang, Xiao, Fu, Xiao-Ying, Luo, Kang, Huang, Ya, Zhang, Hong-Jing, Yi, Si-Rong (2025): Lysimachia nanshanensis (Primulaceae), a new species from southwest Hunan, China. PhytoKeys 262: 191-202, DOI: 10.3897/phytokeys.262.153293
8BA0674D51245823BB85A8D971729B2A.taxon	description	Description. Perennial herbs. Rhizome short, with many roots up to 15 cm long. Stems erect, often 3 – 4 - noded, up to 30 cm long, pale pink when young. Leaves opposite, lower and middle ones bract-like; upper ones 4 – 6 in a terminal whorl, subpapery, with obviously black glandular punctate and striate, elliptic, ovate to obovate, 4.5 – 11 × 2.0 – 4.5 cm, petiole 4 – 8 mm long and pale purple; leaf blades apex obtuse to mucronate, base cuneate and descending into petiole, margin entire to shallowly undulate; blades adaxially pale green, densely light purple short glandular stripes, abaxially pale greenish; veins sunken adaxially, protuberant abaxially, lateral veins 4 – 6 pairs. Cauline bracts ovate-lanceolate, 5 – 11 × 2.5 – 4 mm. Umbels terminal, many flowers; pedicel slender, 3 – 6 cm long, pale green, sparsely coated, peduncle absenced. Calyx 5 - lobed, pale purple brownish to green purple; lobes lanceolate, entire, glabrous, 6.5 – 7.5 mm long, 1.5 – 1.8 mm wide in middle, apex acuminate, abaxially sparsely light purple short glandular stripes. Corolla broad campaniform to trumpet-shaped, yellow; tube 0.3 – 0.5 mm, lobes 9 – 13 × 3.5 – 4.5 mm, apex undulated to 2 – 3 - lobed shallowly. Stamens 5, subequal, yellow, 5 – 6 mm long, filaments almost free, often curved, slightly farinose; anthers elliptic, dorsifixed, 1.2 – 1.5 mm long, 0.5 – 0.6 mm wide, opening by lateral slits. Ovary globose, glabrous, 1.2 – 1.5 mm in diam., style 3.6 – 4.5 mm, erect. Capsule globose, 1.6 – 2 mm in diam., style persistent.	en	Xiong, Chi, Wang, Xiao, Fu, Xiao-Ying, Luo, Kang, Huang, Ya, Zhang, Hong-Jing, Yi, Si-Rong (2025): Lysimachia nanshanensis (Primulaceae), a new species from southwest Hunan, China. PhytoKeys 262: 191-202, DOI: 10.3897/phytokeys.262.153293
8BA0674D51245823BB85A8D971729B2A.taxon	etymology	Etymology. The specific epithet ‘ nanshanensis ’ refers to the type locality where the new species was found, Nanshan National Park, Southwest Hunan. The Chinese name is “ 南山落地梅 (nán shān luò dì méi) ”.	en	Xiong, Chi, Wang, Xiao, Fu, Xiao-Ying, Luo, Kang, Huang, Ya, Zhang, Hong-Jing, Yi, Si-Rong (2025): Lysimachia nanshanensis (Primulaceae), a new species from southwest Hunan, China. PhytoKeys 262: 191-202, DOI: 10.3897/phytokeys.262.153293
8BA0674D51245823BB85A8D971729B2A.taxon	distribution	Distribution and habitat. Lysimachia nanshanensis C. Xiong & S. R. Yi was found only in Yu’nüxi and Shilipingtan, Nanshan National Park, Chengbu County, Hunan, China (Fig. 4). It grows on rocky cliffs within the valley at elevations of 750 – 1200 m.	en	Xiong, Chi, Wang, Xiao, Fu, Xiao-Ying, Luo, Kang, Huang, Ya, Zhang, Hong-Jing, Yi, Si-Rong (2025): Lysimachia nanshanensis (Primulaceae), a new species from southwest Hunan, China. PhytoKeys 262: 191-202, DOI: 10.3897/phytokeys.262.153293
