Supra-alar cells of stem leaves slightly or strongly incrassate, porose, forming a group equal in size to or larger than the alar cell group. Stem leaf costa mostly in the bottom of a deep, in transverse section narrow-angled fold. S. orthothecioides 2. Capsules horizontal or occasionally erect to inclined 1. S. uncinata 3.
Capsules erect to slightly inclined.
S. symmetrica 1. Hypnum uncinatum J. Hedwig, Spec. N. C. Kindberg. Plants slender to medium-sized, usually pinnately branched. Inner perichaetial leaves gradually narrowed to longly acuminate apex, with margins finely denticulate to denticulate above.