4. Symphyodon weymouthioides Card. & Thér. 贵州刺果藓 gui-zhou ci-guo xian
Bull. Acad. Int. Géogr. Bot. 21: 271. 1911. Type. China: Guizhou, (Kouy-Tcheou), Cavalerie s.n. (holotype PC; isotype S).
Plants slender, medium-sized, 3–6 cm long, yellowish to golden brown, glossy. Stems irregularly branched. Stem leaves and branch leaves similar, moderately imbricate, clearly concave, ovate to broadly ovate; (0.9–)1.0–1.3 mm × (0.4–)0.6–0.8 mm; leaf apices apiculate; margins faintly serrulate to subentire above, entire below; costae unequal, extending to 1/4–1/3 total leaf length; apical leaf cells slightly shorter than adjacent cells; median cells linear, 50–60 µm × 3.5–4.5 µm, faintly prorate; alar cells differentiated, quadrate, of 3–5 rows extending 3–4 cells up the margins. Perichaetial leaves sheathing at the base, abruptly acuminate at the apex; cells moderately thick-walled, porose, costae double, short or indistinct. Setae ca. 1.5 cm long, papillose distally, smooth proximally; capsules erect, oblong-ovoid, symmetric, ca. 2.2 mm × 1.1 mm, sparsely to moderately echinate; walls of exothecial cells moderately thickened, rectangular, 60–85 µm × 20–30 µm; spines to 50 µm long; annuli differentiated, of 3–4 rows of small, quadrate cells; opercula ca. 1.25 mm long, conic-rostrate; exostome teeth 0.4–0.5 mm long, faintly papillose at tips; endostome segments 0.20–0.25 mm long, narrow, smooth, perforate, keeled; basal membrane low, 35–45 µm high. Spores ca. 18 µm in diameter, papillose.