Plants: small, gregarious or cespitose, yellowish green. Stems: erect. Leaves: loosely crispate to circinate when dry, linear from a slightly broader base; medial cells smooth; margins entire, thickened distally. : Specialized asexual reproduction absent. Seta: curved when wet, flexuous when dry. Capsule: ovoid-cylindric, smooth to indistinctly wrinkled or ribbed when dry; peristome teeth slender, single or variously perforate or divided, densely papillose or spiculose, often nodose. Calyptra: mitrate, smooth, not plicate, lobed proximally. Spores: smooth. North America, Europe, Asia, Africa.