8a. Distichophyllum oblongum B. C. Tan & P.-J. Lin var. oblongum 圆尖黄藓原变种 yuan-jian huang xian yuan bian-zhong
Bot. Bull. Acad. Sin., n.s. 32: 310. 1991. Type. China: Guangxi, Mt. Miao-er, P.-J. Lin 1748 (holotype FH; isotype IBSC).
Plants small, in dense mats. Stems procumbent, branched, reaching 1 cm tall and less than 1 mm wide with leaves when dry. Leaves shrunken, twisted when dry, complanate, spreading when wet, mostly oblong, also oblanceolate to shortly spathulate, about 1 mm long, less than 0.5 mm wide, acute to short acuminate, the acumens 45–100 µm long; leaves bordered throughout, stout, 14–25 µm wide, entire, consisting of 1–2 rows of thick-walled, linear cells; costae ending well below apex; laminal cells irregular in shape, mostly polygonal, more hexagonal at mid-leaf portion, 11–17 µm long, thick-walled, not collenchymatous, homogeneous across the lamina, becoming rectangular at leaf base. Perichaetial leaves small, oblanceolate, acuminate, bordered, ecostate. Sporophytes lateral; setae 3–4 mm long, smooth; capsules shortly obovoid, less than 1 mm long, erect to nodding.