云南马尾杉 yun nan ma wei shan

Huperzia yunnanensis (Ching) Holub.

Lycophytes, medium-sized. Stems caespitose, mature branches pendulous, 1 to several times forked, 32-47 cm, stem together with leaves cordlike, 2-5 mm wide at middle. Leaves twisted and forming 2 rows. Trophophylls dense, those of upper middle portion of plant ovate-lanceolate, less than 5 mm, ca. 3 mm wide, adnate to branches, much incurved, lustrous, midrib indistinct, hard, raised abaxially, base cuneate, decurrent, sessile, margin entire, apex acute. Strobili terminal on branches, 1.5-2.5 mm in diam. Sporophylls ovate, midrib indistinct, base cuneate, margin entire, apex acute with mucro. Sporangia exposed to outside of sporophylls, yellowish, reniform, vertically bisected.

● Epiphytic on tree trunks in forests; 1500-2600 m. Yunnan (Gongshan, Hekou, Yangbi).

Phlegmariurus yunnanensis may be a geographical substitute of P. sieboldii. Its trophophylls are ovate-lanceolate, and its sporophylls have an acute apex.