Hanging in the drip of waterfalls in masses; stems slender, mostly simple, 4-6 inches long, or only slightly branched, with slender branches; not rhizoid, without paraphyllia, pendulous, but with the branch-tips and often the leaf-tips reflexed or falcate; all leaves appressed when dry, spreading widely when wet; leaves 1.5-2 mm long, the stem leaves short and wide (up to 1 mm wide), ovate-acuminate, acute, concave, with strong yellowish nerve to the usually reflexed apex; margin entire, and there is usually a small indefinite group of small, quadrate, pellucid alar cells; branch leaves longer and narrower, with long narrow subula filled with nerve, ovate-lanceolate but apparently lanceolate because concave; nerve yellowish, strong to the apex, usually curved backward, sometimes falcate, especially among apical leaves; alar cells very indistinct, all cells rhomboid-hexagonal, about 30 x 10 µ; alar cells about 15 x 15 µ. Inflorescence and fruit not seen.