2. Mitthyridium flavum (C. Müll.) Robins. 黄匍网藓 huang pu-wang xian
Phytologia 32: 433. 1975. Thyridium flavum (C. Müll.) Fleischer, Musci Fl. Buitenzorg 1: 232. 1904. Syrrhopodon flavus C. Müll., Bot. Zeit. 13: 763. 1855. Type. Indonesia: Java.
Plants small, slender, less than 2 cm high, pale yellowish green, in sparse straggling colonies. Stems repent, with short branches; rhizoids glossy brownish red, sometimes conspicuous. Leaves involute-falcate when dry, spreading when wet, oblong above slightly broader base, characteristically abruptly pointed, to 3 mm long, axillary hairs inconspicuous; cells of upper laminae obscure, isodiametric, smooth or unipapillose abaxially with small, low papillae, bulging-papillose adaxially; margins conspicuously bordered, except toward leaf tip, with narrow hyaline cells, border broadest at shoulders, irregularly sharply denticulate above shoulders; cancellinae rounded distally. Gemmae common, adaxial on leaf tips. Sporophytes not seen.