taxonID	type	description	language	source
EBC931842E95552FA3A15903F41598E5.taxon	materials_examined	Type. China. Sichuan: Kangding, Zheduoshan Pass, 4300 m alt., 30 ° 4 ' N, 101 ° 48 ' E, 26 Sep 2019, Lingjian Gui GLJ 19092601 (holotype: SZ).	en	Gui, Ling-Jian, Wen, Jun, Xiao, Yan-Ping, Ren, Ting, Zheng, Hong-Yi, He, Xing-Jin (2020): Tongoloa arguta (Apiaceae), a new species from southwest China. PhytoKeys 164: 11-19, DOI: http://dx.doi.org/10.3897/phytokeys.164.54927, URL: http://dx.doi.org/10.3897/phytokeys.164.54927
EBC931842E95552FA3A15903F41598E5.taxon	diagnosis	Diagnosis. Tongoloa arguta sp. nov. is morphologically similar to T. silaifolia. However, the new species can be distinguished from the latter by its short stems (10 - 50 cm), while T. silaifolia has longer ones (28 - 60 cm); The ultimate segments of the lower leaf of T. arguta are acute and short (1 - 4 mm), while those of T. silaifolia are linear and longer (5 - 18 mm). The umbels of T. arguta have 3 - 8 rays, which are significantly less than those of T. silaifolia (8 - 22).	en	Gui, Ling-Jian, Wen, Jun, Xiao, Yan-Ping, Ren, Ting, Zheng, Hong-Yi, He, Xing-Jin (2020): Tongoloa arguta (Apiaceae), a new species from southwest China. PhytoKeys 164: 11-19, DOI: http://dx.doi.org/10.3897/phytokeys.164.54927, URL: http://dx.doi.org/10.3897/phytokeys.164.54927
EBC931842E95552FA3A15903F41598E5.taxon	description	Description. Plants 10 - 50 cm. Root usually long-conic. Stem thinly ribbed, glabrous, purplish to green, branched. Leaf sheaths inflated, membranous; blade triangular in outline, 3 - 5 x 2 - 3.5 cm, 2 - 3 - ternate / pinnate; ultimate segments lanceolate, 1 - 4 x 1 - 2 mm, apex acute. Umbels terminal or lateral; bracts often absent or sometimes 1, leaf-like, ca. 2 - 4 x 1 cm, bracteoles absent; rays 3 - 8; umbellules 13 - 25 - flowered. Calyx teeth minute; petals obovate, white to purple, apex obtuse; stylopodium depressed, dark purple; styles short, reflexed. Fruit broadly ovoid, ca. 2 x 1.7 mm, base cordate; ribs 5, filiform; vittae 3 in each furrow, ca. 4 on commissure. Ventral surface of endosperm slightly concave to plane.	en	Gui, Ling-Jian, Wen, Jun, Xiao, Yan-Ping, Ren, Ting, Zheng, Hong-Yi, He, Xing-Jin (2020): Tongoloa arguta (Apiaceae), a new species from southwest China. PhytoKeys 164: 11-19, DOI: http://dx.doi.org/10.3897/phytokeys.164.54927, URL: http://dx.doi.org/10.3897/phytokeys.164.54927
EBC931842E95552FA3A15903F41598E5.taxon	etymology	Etymology. The species epithet " arguta " was given to describe the acute tips of the ultimate segments of leaves.	en	Gui, Ling-Jian, Wen, Jun, Xiao, Yan-Ping, Ren, Ting, Zheng, Hong-Yi, He, Xing-Jin (2020): Tongoloa arguta (Apiaceae), a new species from southwest China. PhytoKeys 164: 11-19, DOI: http://dx.doi.org/10.3897/phytokeys.164.54927, URL: http://dx.doi.org/10.3897/phytokeys.164.54927
EBC931842E95552FA3A15903F41598E5.taxon	distribution	Distribution and habitat. Tongoloa arguta is distributed from Sichuan (Kangding, Yajing) to Yunnan (Deqin, Shangri-la) in south-western China. It grows in alpine bushes and meadow s from 4000 m up to 4500 m alt.	en	Gui, Ling-Jian, Wen, Jun, Xiao, Yan-Ping, Ren, Ting, Zheng, Hong-Yi, He, Xing-Jin (2020): Tongoloa arguta (Apiaceae), a new species from southwest China. PhytoKeys 164: 11-19, DOI: http://dx.doi.org/10.3897/phytokeys.164.54927, URL: http://dx.doi.org/10.3897/phytokeys.164.54927
EBC931842E95552FA3A15903F41598E5.taxon	materials_examined	Additional specimens examined. China. Sichuan: Kangding, Xinduqiao, Zheduoshan, 4000 m alt., 3 Sep 1982, Taichang Wei 29664 (CDBI 0095011); Kangding, north slope of Zheduoshan, 4000 m alt., 22 Sep 1984, Yongjiang Li 454 (CDBI 0172327); Yajiang County, Jianziwanshan, 4400 m alt., 28 Sep 2019, Lingjian Gui & Chang Peng GLJ 19092802 (SZ); Yajiang County, Kazilashan, 4400 m alt., 20 Sep 2018, Lingjian Gui GLJ 18092002 (SZ). Yunnan: Deqin County, Baimaxueshan pass, 4350 m alt., 21 Aug 2018, Lingjian Gui GLJ 18082102 (SZ); Shangri-la, Daxueshan pass, 4340 m alt., Yanping Xiao A 11 (SZ); Zhongdian, Deqen, Beima Shan, on the south side of road, 4675 m alt., 25 Sep 1994, ACE 1287 (PE 00755697).	en	Gui, Ling-Jian, Wen, Jun, Xiao, Yan-Ping, Ren, Ting, Zheng, Hong-Yi, He, Xing-Jin (2020): Tongoloa arguta (Apiaceae), a new species from southwest China. PhytoKeys 164: 11-19, DOI: http://dx.doi.org/10.3897/phytokeys.164.54927, URL: http://dx.doi.org/10.3897/phytokeys.164.54927
