Kindberg ex E. Britton

Bryologist 9: 39. 1906.

Etymology: Genus Pleurozium and Greek opsis, resembling
Basionym: Climacium sect. Girgensohnia Lindberg Contr. Fl. Crypt. As., 249. 1873,
Treatment appears in FNA Volume 28. Treatment on page 513. Mentioned on page 508, 512, 514, 647.

Plants 4–8 cm. Stems with secondary stems and branches red, branchlets green or red; rhizoids matted on primary stems. Stem leaves 3–4 × 1.5–2.5 mm; margins plane, entire; costa single, weak, ending mid leaf, smooth; laminal cells smooth or minutely prorulose, walls not pitted or pits not evident. Proximal branch leaves similar, smaller; median branchlet leaves ovate to ovate-lanceolate, 0.5–1 × 0.3–0.5 mm; costa strong, ending before apex, abaxial surface usually toothed; laminal cells smooth or minutely prorulose by projecting cell ends, walls not pitted or pits not evident. Seta orange to red, 1.5 cm, twisted. Capsule single, 3 × 1 mm, smooth; annulus absent; operculum unknown; endostome as long as exostome. Spores sometimes germinating inside capsule.


w North America, e Asia.


Species 1.

Girgensohnia (Lindberg) Kindberg 1896, not Bunge ex Fenzl 1851 [Chenopodiaceae], has been used for this taxon. The operculum of Pleuroziopsis is unknown in the flora area, but has been reported as long-conic and almost rostrate.

Selected References