25. Parnassia lanceolata T. C. Ku, Bull. Bot. Res., Harbin. 7(1): 34. 1987.
披针瓣梅花草 pi zhen bai mei hua cao
Stem 1, 3-7 cm, with 1 leaf near middle. Basal leaves 3-5; petiole 1.5-3.5 cm; leaf blade abaxially greenish, purple punctate, adaxially deep green, ovate-reniform or ovate-cordate, 4-14 × 5-12 mm, base cordate, apex acuminate. Cauline leaf sessile, semiamplexicaul, similar to basal leaves but smaller, base often with a few rusty brown appendages. Flower 5-6 mm in diam.; hypanthium shortly turbinate. Sepals purple punctate on both surfaces, lanceolate, 2-2.5 × 0.8-1 mm, margin entire, apex obtuse. Petals green, densely purple-brown punctate on both surfaces, lanceolate or oblong, ca. 4 × 1.2 mm, base truncate, abruptly contracted into a claw ca. 1.2 mm, margin densely and acutely serrulate, apex acuminate or obtuse. Anthers oblong, 0.5-1 mm; filaments ca. 5 mm; staminodes flat, ca. 0.9 mm, stalk ca. 0.3 mm, lamina 3-lobed at apex. Ovary superior, ovoid; style ca. 0.8 mm; stigma 3-lobed. Capsule unknown. Fl. Jul.
* Picea forests, grassy slopes near forests, alpine scrub and meadows; 3600-3900 m. W Sichuan, NW Yunnan.
In habit, this species resembles Parnassia angustipetala, which differs in having terete, discoid staminodes rounded and entire at the apex.