Spiradiclis yuanyangensis (Rubiaceae), a new species from Yunnan, China Author Wu, Lei 0000-0003-1451-7855 College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China & wuleiibk @ 163. com; https: // orcid. org / 0000 - 0003 - 1451 - 7855 Author Liu, Cheng 0000-0001-7146-2542 Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China & liucheng @ mail. kib. ac. cn; https: // orcid. org / 0000 - 0001 - 7146 - 2542 liucheng@mail.kib.ac.cn Author Song, Xiao-Fei 0000-0001-7116-3008 College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China & 1050876575 @ qq. com; https: // orcid. org / 0000 - 0001 - 7116 - 3008 1050876575@qq.com Author Chen, You-Sheng 0000-0002-7729-1075 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China & yschen @ scbg. ac. cn; https: // orcid. org / 0000 - 0002 - 7729 - 1075 yschen@scbg.ac.cn text Phytotaxa 2021 2021-10-13 522 4 294 300 http://dx.doi.org/10.11646/phytotaxa.522.4.3 journal article 4021 10.11646/phytotaxa.522.4.3 31f5a0ea-d850-4a75-89eb-99a2da24e53c 1179-3163 5565826

TABLE 1. Morphological comparison between Spiradiclis yuanyang ensis and S. petrophila.

Characters	Spiradiclis yuanyangensis	S. petrophila
stem and petioles	pubescent	densely pilosulous to tomentulose
stipules	0.5–1.0 mm long	1.5–2 mm long
secondary veins	7–12 pairs	ca. 9 pairs
bracts	subulate, 0.5–2.5 mm long	narrowly triangular, 0.3–0.8 mm long
calyx	hypanthium portion 1.0–1.5 mm long; lobes 0.3–0.8 mm long	hypanthium portion ca. 0.8 mm long; lobes ca. 0.3 mm long
corolla tube	4–5 mm long, sometimes slightly enlarged at base of long-styled corolla	ca. 2 mm, enlarged at base of both long- and shortstyled corollas
corolla lobes	triangular-ovate, 1.8–2.2 mm long	triangular, ca. 1 mm long
corolla inside	with a villous ring only at middle of long-styled form and pubescent through middle to throat at short-styled form	with a villous ring at middle of both long- and shortstyled forms
phenology	flowering from March to June, fruiting from June to maybe September	flowering in September, fruiting in December