Eccremidium

Wilson

London J. Bot. 5: 450. 1846 ,.

Etymology: Greek ekkremes, hanging, and -idium, diminutive, alluding to pendulous capsule
Treatment appears in FNA Volume 27. Treatment on page 461. Mentioned on page 444.
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Plants scattered or in loose to compact turfs, mostly yellowish green, sometimes reddish. Stems erect, to ca. 0.5 mm, sometimes seemingly absent; simple or branched by innovations; rhizoids at base, smooth. Leaves imbricate to spreading when dry, lanceolate to ovate, acute to subulate; margins plane, entire or serrate; costa subpercurrent to excurrent, sometimes weak or absent toward insertion and in lowermost leaves, medial laminal cells rhomboidal to short-rectangular, becoming longer toward the insertion, smooth. Specialized asexual reproduction unknown. Sexual condition autoicous or dioicous, cladocarpous; perichaetial leaves sometimes differentiated. Seta short, curved at apex, rarely ± erect. Capsule pendulous and laterally emergent, rarely erect and immersed, reddish at maturity, subglobose; annulus near midurn, of 1–2 rows of small cells, persistent; operculum obtuse to apiculate; peristome none. Calyptra conic-mitrate, entire at base or crenate-lobed. Spores globose to reniform, coarsely papillose to reticulate.

Distribution

North America, South America, Asia, Africa, Australia.

Discussion

Species 6 (1 in the flora).