Amitostigma kaiyangense (Orchidaceae), a new species from Guizhou, China Author He, Shun-Zhi 0000-0002-2082-3181 Department of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550002, People’s Republic of China hesz 8899 @ 126. com; https: // orcid. org / 0000 - 0002 - 2082 - 3181 Author Wang, Yong Guizhou Botanical Garden, Guiyang 550004, People’s Republic of China Author Xu, Wen-Fen 0000-0002-2082-3181 Department of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550002, People’s Republic of China hesz 8899 @ 126. com; https: // orcid. org / 0000 - 0002 - 2082 - 3181 text Phytotaxa 2022 2022-05-17 547 1 115 118 journal article 55503 10.11646/phytotaxa.547.1.12 2a8626c0-6d94-4f4b-ace2-23f2d887081b 1179-3163 6555743

TABLE 1. A comparison of Amitostigma kaiyangense and A. pinguiculum.

Species	A. kaiyangense	A. pinguicula
Distribution	Guizhou province, western China, elevation 900–910 m	Zhejiang province, eastern China, elevation 250–400 m
Flowering period	June to July	April to May
Tuber	5–8 mm diam.	1–1.5 cm diam.
Leaf size	7–12 × 2.8–3.8 cm	1.5–8 × 0.6–1.2 cm
Pedicellate ovary	1.8–2.3 cm long	1–1.7 cm long
Lip	1.4–2 ×1.6–2.2 cm, trilobed near middle	1.1–1.5 ×1.3–1.9 cm, trilobed toward apex
Side lobes	Obovate-oblong, irregularly denticulate-margined	Ovate-cuneate, entire-margined
Mid lobe	Oblong, irregularly denticulate-margined	Obovate-cuneate, entire-margined