6. Bartramia subulata Bruch & Schimp. in B.S.G. 绿珠藓 lu zhu xian
Bryol. Eur. 4: 53. pl. 315 1846. Bartramia ithyphylla var. subulata (Bruch & Schimp.) Husn., Muscol. Gall. 266. 1890. Type: Europe.
Bartramia macrosubulata C. Müll., Bot. Centralbl. 16: 123. 1883.
Bartramia viridissima (Brid.) Kindb., Eur. N. Amer. Bryin. 2: 323. 1897, hom. illeg. Weissia viridissima Brid., Bryol. Univ. 1: 364. 1826.
Plants small, jade green or bright green, glossy, in dense tufts. Stems erect, 0.5–1.2 cm high; leafy stems bud-like with filiform tips. Leaves clearly sheathing and hyaline at base, abruptly narrowed and filiform toward the apex; margins entire at sheathing base, serrate above the sheathing base; costae ending in the apex or percurrent; leaf cells above the sheathing base multi-stratose; median and upper leaf cells subquadrate to rectangular, sometimes to 120 µm long, moderately thick-walled; cells at the sheathing base elongate-rectangular, hyaline, smooth. Synoicous. Sporophytes lateral by innovations. Setae straight, ca. 8 mm long, reddish; capsules erect, pyriform, symmetric, reddish brown; opercula conic; exostome teeth short and thick; endostome segments lacking. Spores spherical, 24–32 µm in diameter, brownish, papillose.