Creamfern

This cream and lime green moss is commonly found growing in tiny clumps On trees.
It is average-sized, growing up to 6 inches (15 cm) tall. It forms in thick clumps, and is extremely rigid; it struggles more than most during dry spells.
When mature, emerald triangular capsules grow at the end of short, lime green sporophytes, eventually opening up during the early summer to release thousands of spores.