3. Trachypus longifolius Nog.   长叶扭叶藓   chang ye niu ye xian

J. Hattori Bot. Lab. 2: 55. 1947. Type: China. Taiwan, Tainan, Ozaki 8487 (NICH).

 

Plants very slender, brownish green, not glossy. Primary stems creeping; secondary stems elongate, to 5 cm long, more or less pinnately branched, with many slender, sparsely foliate flagelliform branches. Stem and branch leaves distinctly dimorphic; stem leaves narrowly ovate-lanceolate, branch leaves mostly narrowly lanceolate, to ca. 1.8 mm long, weakly plicate, slenderly long acuminate, often with long hyaline apices, not auriculate at the base; margins serrulate, slightly incurved below; costae indistinct or absent; leaf cells narrowly rhomboidal or linear, 3–10 times as long as wide, pluripapillose, thick-walled, sometimes sinuous; marginal cells not differentiated; basal cells hyaline, smooth; alar cells a few, quadrate or shortly rectangular. Sporophytes not seen.