| The seta widens out at the base of the capsule into a region known as the apophysis. |
| The sporangium differentiates after the seta elongates and is protected from injury and drying by the calyptra. |
| The seta is short, the capsule being usually raised upon the archegoniophore. |
| There is great variety in the length of the seta, which is sometimes practically absent. |
| If this is the case, setal morphology would have a greater effect on force of adhesion than surface chemistry of the seta or substrate. |
| The peripheral cells of the seta are thick-walled, and it has a central strand of elongated conducting cells. |
