• Grows in short tufts (to 10 cm) of flattened branches with forked tips, often with a net-like pattern of ridges visible on the surface.
• Pale grey-green to pale yellow-green on the upper side and whitish underneath. This can be harder to see if the lichen has spent some time on the ground or in older specimens. This colour difference is due to Evernia technically being a foliose lichen, as its internal structure means it just has a single layer of algal cells beneath the upper cortex.
• Patches of grainy soredia may be present on the edges of branches and ridges, becoming more extensive over time. Apothecia (fruiting bodies) are very rare.

Habitat

It prefers well-lit conditions, so is often present in the canopy and on lower branches in well-lit situations.

Similar species

Could be confused with Ramalina farinacea (below) which has narrower, more straggly branches, and lacks the pale underside. E. prunastri  also lacks the oval soralia on the edges of the lobes, which is a distinctive feature of R. farinacea.

Other lichens with strap-like branches that are likely to be encountered in the rainforest, such as Ramalina calicaris, R. fastigiata, and R. fraxinea, commonly have rounded apothecia on their branches which are extremely rare in E. prunastri.

Distribution 

Widespread and common across the whole British Isles

• Grows in pale grey-green to yellow-green tufts, with flattened, straggly and forked branches (up to 10cm).  
• Soredia in discrete oval soralia along branch margins. This is clear with a hand lens, but possible to see without. Apothecia (fruiting bodies) are rare. 
• Both sides of the branches have the same colouring (and it does not have a white underside). 

Habitat

One of the most common fruticose species on trees with acidic bark such as alder, birch and oak. It is fairly pollution tolerant.

Similar species

Could be confused with Evernia prunastri but that lacks the oval soralia on the edges of the branches and has distinctly paler undersides to the branches.  When first becoming familiar with lichens you may also confuse R. fastigiata for an Usnea species as first glance, but if you look carefully you will notice that R. farinacea has flattened branches rather than cylindrical branches.  

Similar to other Ramalina species such as R. calicaris, R. fastigiata, and R. fraxinea, but they have rounded apothecia (fruiting bodies) and they lack the oval soralia. 

• Grey-green tassels of up to 1 m hanging down or draped across the substrate but rarely anchored to it.  
• Main stems have inflated sections which are pinched at intervals, and so resemble a string of sausages. This is a key feature to look for as there are other pendulous Usnea species but none have this characteristic.

Habitat

It is most common in the south west’s temperate rainforest zone. 

Favouring well-lit conditions and dry, open situations, it is most often found in tree canopies or on lower branches where trees are well-lit, in woodland or on scattered trees in open moorland. You can also find it on the ground after stormy weather. 

Similar species

Other large, bearded lichens include Usnea ceratina, Usnea dasopoga and Usnea hirta but these lack the sausage-like lobes. 

Description

Found on Hazel trees in Britain, it is actually parasitic on the Glue Crust fungus Hymenochaete corrugate not living off the Hazel tree. It is not always possible to see the host crust fungus due to the presence of the Hazel Glove fungus and mosses.

Hazel Glove Fungus’ common name comes from the finger-like projections of the stromata (cushion-like plate of solid mycelium).  It is a type of ascomycete fungus. When mature, the central area of a stroma becomes pinkish brown, and individual perithecia (tiny black dots on the surface of these orange lobes which are sac openings which release the spores) become visible.