12. Distichophyllum wanianum B. C. Tan & P.-J. Lin 王氏黄藓 wang-shi huang xian
Trop. Bryol. 10: 57. 1995. Types. China: Yunnan, Lv-chun Co., M. Zang 550 (holotype IBSC; isotypes FH, HKAS); ibid, M. Zang 653 (paratypes FH, HKAS, IBSC).
Plants small, mat-forming. Stems up to 1.6 cm tall, 2 mm wide with leaves. Leaves strongly crisped or cirrate when dry, broadly spathulate with a long narrow basal part when wet, 2.0–2.5 mm × 1.0–1.2 mm, the leaf apices broadly rounded, at times with a minute mucro; leaf margins plane, wavy in the upper half even when wet, with strong borders all around; the border about 10–15 µm wide, consisting of 2–3 rows of thick-walled, linear cells, but becoming one row around the leaf apex; costa single, reaching near the apex; laminal cells nearly homogeneously small, quadrate-polygonal, 11–13(–18) µm wide, becoming smaller (9–13 µm wide) apically and rectangular [33–45(–67) × 11–22 µm] basally. Perichaetial leaves small, oblong-spathulate, distinctly mucronate, with costa well developed. Sporophytes lateral; setae 5–10 mm long, smooth below, gradually becoming weakly papillose distally; capsules oblong-ovoid, 2 mm long.