24. Parnassia xinganensis C. Z. Gao & G. Z. Li, Guihaia. 3: 19. 1983.
兴安梅花草 xing an mei hua cao
Stems 2-8, 6-15 cm, with 1 leaf proximally or near middle. Basal leaves 4 or 5(-11); petiole 1.5-8.5 cm; leaf blade abaxially greenish, brown punctate, adaxially deep green, elliptic, rarely obovate-elliptic, 1.8-7 × 1-2.5 cm, 5-veined basally, midvein prominent, base rounded or cuneate, apex acute, obtusely apiculate. Cauline leaf ovate or ovate-triangular, 1-1.8 × 0.5-1.1 cm, base rounded or cuneate, with several rusty brown appendages. Flower 1.5-2 cm in diam.; hypanthium shortly turbinate. Sepals elliptic or ovate, rarely obovate, 4-5 × 2.5-3.5 mm, 5-veined, margin entire, apex rounded. Petals spreading, white, elliptic, 9-10 × 7-8 mm, 5-veined basally, base attenuate into a claw ca. 2 mm, margin entire, apex rounded. Anthers ellipsoid, ca. 1 mm; filaments ca. 5 mm; staminodes flat, 3-3.5 mm, stalk ca. 1.8 × 0.5 mm, lamina ca. 1.5 mm wide, 3-lobed, lobes lanceolate. Ovary superior, ovoid; style ca. 1.5 mm; stigma 3-lobed, lobes oblong. Capsule unknown. Fl. Jul-Aug.
* Streamsides in valleys; ca. 1200 m. NE Guangxi (Xing'an Xian).