This moss is unisexual, with males in either full-size, dwarfed or leaf-attached forms. Often males can only be observed with a hand-lens. The reproductive plant is obvious with the presence of the sporophyte. This is typically evidenced by the brown seta standing erect with the capsule attached. It will only brown once it has reached full maturity and is no longer required to perform photosynthesis to sustain its growth.
