Trachyloma planifolium

Loose tufts or scattered on tree trunks, rarely on logs. Secondary stems 3–10 cm long, black, branches to 2.8 cm long, with terminal filamentous gemmae, (215–) 385–590 (–795) μm long, intermingled among persistent and normal-sized leaves. Leaves complanate, rugose, sometimes plicate, ventral and dorsal leaves erect and appressed, lateral leaves spreading, those on stipe erecto-patent or slightly spreading, plane; costae mostly single, sometimes double, sometimes absent, rarely longer than ¼ leaf length; margins serrulate toward apices, entire near base, plane or incurved on one side at base of lateral leaves, without a border; cells near apices linear to rhombic, 25–53 (–69) μm long, (7–) 9–11.5 μm wide, smooth; midlaminal cells linear to narrowly rhombic, (55–) 67–108 (–166) μm long, 7–9 μm wide, smooth, wider and longer at base. Stem leaves ovate to ovate-lanceolate, 2.6–4.6 (–5.2) mm long, 1.6–2.9 mm wide; apices acute. Branch leaves ovate, 1.9–3.2 (–3.5) mm long, 0.9–2.2 mm wide; apices acute to acuminate; Setae 0.9–1.7 cm long, reddish. Capsules suberect, cylindric, sometimes curved, 3–4 mm long. Calyptrae smooth, glabrous. Operculum rostrate from conic base.