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This autumn, help us find Britain’s most colourful and important fungi – waxcaps.
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Armillaria species
The term Honey fungus actually refers to several closely related species, all within the Armillaria group. The two most common Honey fungus species are Armillaria mellea and Armillaria gallica, however there are a total of seven Honey fungus species found in the UK. These fungi are often well known by gardeners, as they can cause severe disease in trees and shrubs.
As well as producing fruit bodies, Honey fungus forms distinctive bootlace-like structures called “rhizomorphs”. The tough leathery rhizomorphs are formed of bunches of fungal hyphae (root-like threads), and can commonly be seen underneath the bark of trees which have been infected with Honey fungus. Rhizomorphs vary from pale yellow and red, becoming brown or even black as they age.
Honey fungus grows in dense clusters on dead or dying wood, and can be found in woodlands, gardens, and parks.
The different species of Honey fungus can be easily confused with each other.
Armillaria mellea are bioluminescent, their gills glow in the dark! The glow from Honey fungus is very weak however, and is usually too faint to be seen by the naked eye in a woodland environment.
This autumn, help Plantlife find Britain’s most colourful and important fungi – waxcaps.
Auricularia auricula
This fungus is commonly found on dead or dying wood. While it’s easiest to spot between January and April, it can be found all year round.
There are several other species of jelly fungi:
This fungus was previously only found on Elder trees. Over the last 50 years, it has spread to a much wider range of host tree species, and can now be found on at least 16 species of tree!
Dactylis glomerata
It’s one of the bigger lawn grasses which can grow over 1m. Its most distinguishing feature is its flattened lower stems which you can feel with your fingers as easily as you can see. Forming dense tussocks, it also has distinctive heavy-looking flower heads.
It’s found across the UK in all kinds of places but it’s most commonly found in meadows and roadsides. On lawns, it often grows on the lesser mown edges.
False oat grass – another tall, bulky grass which flowers slightly later.
Cock’s-foot grass is a surprisingly good plant for wildlife.
Clavaria fumosa
They are generally found in unimproved grassland (favouring acid or neutral grassland) and in leaf litter on woodland edges and clearings. In the summer and autumn, they can be found on road verges, in cropped grassland and in churchyards.
After years of low-nutrient management, they can also appear on lawns.
Microglossum olivaceum
Rare but when found usually on unimproved grassland, often mossy between late summer and autumn.
The latin name for Olive Earthtongues is Microglossum Olivaceum. Microglossum means small tongue, while olivaceum refers to the hint of olive to most of the fruitbodies (but note that the colour is very variable with some being much browner than others).
Hypocreopsis rhododendri
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.
Most likely to find in either west coast of Scotland in Atlantic Hazel woodland or temperate rainforest sites or in the south west of England, in North Devon and Cornwall, again in temperate rainforest habitat.
Temperate rainforest, parasitic on Glue Crust fungus Hymenochaete corrugata on Hazel trees.
Hazel Glove fungus is an indicator of good air quality and temperate rainforest conditions, making it a flagship species for this threatened habitat.
Temperate rainforests are found in areas that are influenced by the sea, with high rainfall and humidity and damp climate. They are home to some intriguing and sometimes rare bryophytes, plants and fungi.
Plantlife are working in many ways to protect and restore this globally threatened habitat.
Image by Sarah Shuttleworth
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