COMMON TAMARISK MOSS : Thuidium tamariscinum
As the name suggests, this is a common moss. It grows on damp ground, trees and rotting wood. It forms yellowish-green or dark green thick mats or tufts. Stems are dark green/black. More commonly found in neutral soils. An easy way to differentiate it from other mosses is the way it looks like tiny Christmas trees with green stems.
An example found at the edge of Fishers Wood on the Leven towpath in November. It is growing on decayed wood. The white spots are mold growing from the moss.