Forsstroemia nitida Lindberg, Öfvers. Finska Vetensk.-Soc. Förh.. 12(2): 73. 1869; Leptodon nitidus (Lindberg) Sullivant

Plants 6 cm. Stems with flagelliform branches absent; pseudoparaphyllia absent or few. Stem and branch leaves 0.6-1.9 × 0.4-1 mm; alar cells quadrate to oblong; distal medial laminal cells irregularly long-rhomboidal, 23-42 × 5-9 µm; apical cells irregularly rhomboidal, walls pitted. Perichaetial inner leaves with base sheathing, margins entire, apex acute, costa single. Capsule erect. Calyptra smooth. Spores globose, ovoid, or ellipsoid.

Trunks of Ulmus; moderate elevations; of conservation concern; Ont.

Neomacounia nitida was collected originally from trunks of elm trees; the species is listed as endangered and may be extinct.