Neckera
Neckera is a large genus of mosses belonging to the family Neckeraceae. The genus was first described by Johann Hedwig. The genus has a cosmopolitan distribution.
Description
Gametophyte
Medium-sized to large mosses that form shelf growth forms. They are light to dark green in colour, or sometimes yellowish. They tend to be shiny.The creeping stems are irregularly branched. Paraphyllia may be present or absent.
The secondary stem and branch leaves range from erect to spreading. The leaf like structures may be secund, ovate, obovate, oblong, oblong-ligulate, or oblong-lanceolate. They may be asymmetric or flat or strongly undulate. The margins are entire to serrate with recurved teeth. The apex is obtuse to acuminate and the costa double and short, or sometimes single or absent. The basal laminal cells are linear to rectangular. The walls may or may not be pitted.