上思马尾杉 shang si ma wei shan

Huperzia shangsiensis (C. Y. Yang) Holub.

Lycophytes, medium-sized. Stems caespitose, mature branches pendulous, 2 to several times forked, 20-70 cm, main stems ca. 6 mm in diam., stem together with leaves 2.6-3.2 cm wide. Trophophylls much or slightly angled upward, elliptic-lanceolate, ca. 1.4 cm × 3-4 mm, base cuneate, decurrent, mature leaves inconspicuously stipitate, lustrous, leathery, midrib distinct, margin entire, apex acute. Strobili slightly thinner than sterile part, not columniform, terminal on branches. Sporophylls sparsely arranged, elliptic-lanceolate, 7-10 × ca. 1.3 mm, midrib distinct, base cuneate, margin entire, apex acute. Sporangia yellowish, reniform, vertically bisected.

● Epiphytic on rocks in forests; ca. 1300 m. Guangxi (Shangsi, Shiwandashan).

The leaves of Phlegmariurus shangsiensis are elliptic-lanceolate, acute apically, and lustrous.