网络马尾杉 wang luo ma wei shan

Lycopodium cancellatum Spring, Mém. Acad. Roy. Sci. Belgique 24: 27. 1849; Huperzia cancellata (Spring) Trevisan; Phlegmariurus cancellatus var. minor Ching; Urostachys cancellatus (Spring) Herter ex Nessel.

Lycophytes, medium-sized. Stems caespitose, mature branches pendulous, 1 to several times forked, 31-49 cm, branches slightly robust, stem together with leaves cordlike, tertiary branches with leaves more than 2.5 mm in diam., lateral branches unequal. Leaves twisted and forming 2 rows. Trophophylls dense, those of upper middle portion of plant lanceolate, less than 5 mm, ca. 3 mm wide, adnate to branches, much incurved, lustrous, base cuneate, decurrent, sessile, midrib indistinct, raised abaxially, hard, margin entire, apex acuminate. Strobili terminal on branches, 1.5-2.3 mm in diam. Sporophylls ovate, base cuneate, midrib indistinct, margin entire, apex acute, with mucro. Sporangia exposed to outside of sporophylls, yellowish, reniform, vertically bisected.

Epiphytic on tree trunks in forests; 1800-2300 m. Xizang [Bhutan, India].

Phlegmariurus cancellatus is similar to P. fargesii, but its lateral branches are unequal in length and its sporophylls are only ovate.