Plants grayish green to yellowish green when young, yellowish brown when old, in loosely interwoven, or sometimes compact mats; leafy stems slender, julaceous, irregularly branched, ca. (1.0-)1.5-2.5(-3.5) cm long, 0.20-0.25 mm wide, sometimes with many branchlets or many flagelliform or filiform branches at young stage, less than 1 cm long; central strand diminutive; pseudoparaphyllia broadly foliose. Main stem leaves imbricate-appressed when dry, erect-tumid when wet, narrowly ovate-lanceolate, 0.8-1.0 x 0.4-0.5 mm, gradually acuminate, apices ending in a point 2 cells long; margins slightly incurved below, entire to subentire or somewhat serrulate at branch leaf apices; costae double or forked close to the base, relatively strong, reaching up to 1/2 the leaf length; apical leaf cells narrowly rhomboidal, 18-21 x 6-7 µm; median cells elongate-rhomboidal, 35-43 x 8-9 µm, verrucose, moderately thick-walled, not prorate at upper cell ends; basal juxtacostal cells irregularly rhombic to shortly rectangular; alar cells quadrate, in 5-7 rows toward costa, forming a distinct alar group; branch leaves similar in shape, smaller in size. Dioicous. Sporophytes not seen.
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