Leskea pulvinata Wahlenberg, Fl. Lapp., 369. 1812

Leaves oblong-ovate, 0.6-0.9 × 0.3-0.5 mm; apex rounded-obtuse to bluntly acute; proximal laminal cells 9-24 × 11-21 µm; medial and distal cells 22-34 × 11-13 µm. Seta 0.6-1 cm. 1.2-1.8 mm; exostome teeth triangular-lanceolate, 325-365 × 80-95 µm. Spores 14-20 µm.

Capsules mature May-Aug. Areas submerged at flood level, base of trees or shrubs, willows, edges of ponds or stream valleys; low to high elevations (0-1700 m); B.C., N.B., N.W.T., Ont.; Alaska; Europe; Asia (nw Siberia).

Myrinia pulvinata may be mistaken for species of Leskea because of similar habitat and leaf shape. Plants of Leskea generally have a much stronger costa as well as papillose laminal cells. When sporophytes are present, the cross striolate external exostome surface in Myrinia is distinctive. Myrinia pulvinata and Leskea polycarpa are often found growing intertwined.