in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 232/233[I,3]: 1057, fig. 858A – D. 1908.

Etymology: Genus Rhytidium and Greek - opsis, appearance, alluding to similar leaves
Treatment appears in FNA Volume 28. Treatment on page 335. Mentioned on page 326, 338, 644.

Stems creeping to ascending, (3–)5–8 mm wide across leafy stem, monopodial, irregularly and remotely branched; paraphyllia dense, base 1- or 2-seriate, branches 1-seriate. Stem leaves erect to spreading, falcate-secund, crowded, ovate to lanceolate, strongly plicate, rugose in lower acumen, (2.5–)3.6–5.3 mm; base not decurrent; margins serrulate at apex, otherwise minutely toothed to entire; apex gradually acuminate; costa double, 1/4–1/2 leaf length; alar cells ± differentiated; laminal cells smooth. Branch leaves similar. Capsule horizontal; operculum conic; exostome teeth irregularly cross striolate to somewhat reticulate proximally; endostome segments narrowly perforate.


w North America.


Species 1.

Selected References