雷山石杉 lei shan shi shan

Plants terrestrial. Stem erect or ascending, 3-9 cm, ca. 1.5 mm in diam. at middle, together with leaves 0.8-1.2 cm wide, 2 or 3 times dichotomously branched, upper portion with bulbils. Leaves dense, obliquely angled upward, arc-shaped to slightly flat abaxially, not lustrous, lanceolate (but basal leaves spatulate), conspicuously contracted toward base, slightly falcate, 5-10 × 1-1.5 mm (basal leaves up to 2.5 mm wide), papery, both surfaces glabrous, midrib indistinct, base cuneate, decurrent, sessile, margin straight and not crispate, upper portion with sparse teeth, apex acuminate (basal leaves acute at apex). Sporophylls homomorphic with trophophylls; sporangia visible on both sides of sporophylls, yellowish green, reniform.

● Wet soils under shrubs; 1400-2100 m. Guizhou (Leigong Shan), Sichuan (Gulin), Yunnan (Funing).

The basal leaves of Huperzia leishanensis are spatulate.