Wolffiella repanda (Hegelm.) Monod

Fronds 0.5-1.8 mm long, 0.4-1.2 mm wide, ovate with several one-celled teeth along the margin; air spaces indistinct, restricted to the area around the node (spread throughout up to 1/2 of the distance between the node and the tip), up to 4 cell layers thick at the base; angle of the pouch 70 -90 degrees ; appendage 3-8 mm long, 0.2-0.5 mm wide, 6-20 times as long as wide, 1/2-7 times as long as the frond, 1/4-1/2 as wide as the frond. INFLORESCENCE: Plants often flowering and fruiting. Seeds 0.3-0.35 mm long, 0.22-0.27 mm thick.