墨脱石杉 mo tuo shi shan

Plants terrestrial. Stem erect or ascending, 7-13 cm, 2-3 mm in diam. at middle, together with leaves up to 5 mm wide, 2 or 3 times dichotomously branched, upper portion often with bulbils. Leaves dense, angled upward, lustrous, subulate, nearly as wide at base as middle, straight, ca. 8 × 1 mm, both surfaces glabrous, midrib indistinct, base truncate, decurrent, sessile, margin straight and not crispate, entire, apex acuminate. Sporophylls homomorphic with trophophylls; sporangia visible on both sides of sporophylls, yellowish, reniform.

● Tree trunks; ca. 1800 m. Xizang (Mêdog).

Huperzia medogensis is a dubious species. The type was not seen by us. The description above is based on the protologue.