3. Sematophyllum marylandicum (Müller Hal.) E. Britton, Bryologist. 5: 66. 1902.
Hypnum marylandicum Müller Hal., Syn. Musc. Frond. 2: 328. 1851
Plants medium-sized to large, green, yellow-green, or golden brown, glossy. Stems 3-5 cm, branches creeping. Leaves erect to erect-spreading, oblong-ovate, tapering gradually to apex, 1.5-2 mm; margins plane; apex sometimes apiculate; alar cells conspicuously enlarged, inflated, yellow to yellow-orange or unpigmented, in several rows, supra-alar cells few, rhomboid; laminal cells flexuose. Specialized asexual reproduction absent. Seta 1-2 cm. Capsule inclined to horizontal, 1-1.2 mm.
Capsules mature spring. Wet rock, by streams, cliffs; low to moderate elevations; Nfld. and Labr. (Nfld.), N.S.; Ala., Conn., Ga., Ky., Md., N.Y., N.C., Ohio, Pa., Tenn., Vt., W.Va.