Old Man’s Beard
I'm sure most people have seen the lichen generally referred to as Old Man's Beard. One sees quite a lot of it in the Tsitsikamma forest, but in this case I found it on the Bushbuck Trail in The Island Nature Reserve. Usnea is the generic and scientific name for several species of fruticose lichen in the family Parmeliaceae, that generally grow hanging from tree branches and resembling grey or greenish hair. It is often referred to as Old Man's Beard, but also…