Monoicous, minute, in small pale green patches. Stem 2-4 mm long, filiform, prostrate, sparsely branched, the branches somewhat ascending, rhizoids scarce, colourless. Leaves ovoid and crowded above, erect or ascending, suddenly narrowed into a long straight or slightly curved beak about 1/3 the length of the whole leaf, near the base of the antical lobe with a free, oval, incurved portion; poslical lobe small, strongly involute, forming a canal leading into the beak, cells 20-35 µ, greatly variable in size and shape, thin-walled, convex, trigones small or lacking, cuticle smooth. Amphigastria distant, patent, deeply bilobed, lobes subulate. Female inflorescence on a main branch. Bracts small, strongly concave, oblong-quadrate, apex entire or slightly emarginate. Perianth longly excerted beyond the bracts but not beyond the leaves, apex truncate, 5-plicate, plicae ending in papillose spreading horns, mouth small, rostrum short, 1-celled. Capsule globose. Spores 40-65 µ long, 20-30 µ broad, angular-oblong, verruculose, pale brown, Gemmae discoid, on the surface of the leaves, especially on the beak.
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