6. Oligotrichum suzukii (Broth.) C.-C. Chuang 台湾小赤藓 tai wan xiao chi xian
J. Hattori Bot. Lab. 37: 430. 1973. Pogonatum suzukii Broth., Ann. Bryol. 1: 26. 1928. Type: China. Taiwan, Tai-zhong Co., Suzuki 2660 (holotype H-Br.).
Oligotrichum formosanum Nog., Trans. Nat. Hist. Soc. Taiwan 24: 294. 1934. Type: China. Taiwan, Jia-yu Co., Mt. Ali, Noguchi 5944 (holotype NOG).
Plants small, 0.5–1.0 cm high, brownish green to reddish brown, usually in tufts. Leaves mostly triangularly lanceolate, tapering above the middle, sometimes oblong-oval, 1.0–1.5 mm × 0.3–0.5 mm; margins serrate; costa somewhat broad, ending in the apex; ventral lamellae in 3–8 rows, not wavy, usually not over 5–8 cells high; on leaf back with lamellae and sparse spines above the midleaf; median leaf cells rounded quadrate or irregularly oval, usually 8–15 µm wide; basal cells elongate, irregularly rectangular, 15–18 µm × 10–15 µm, rather thick-walled. Dioicous. Perichaetial leaves slightly sheathing at base. Setae elongate, reddish brown, straight; capsules single, cylindrical, curved; peristome teeth 32; opercula conic, shortly beaked. Calyptrae cucullate, sparsely ciliate at apex. Spores spherical, ca. 14 µm in diameter, verrucose.