Tag: Ash

#FungiFriday: deadwood brings the disco

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Fungi Friday: 24th January 2020

A week of blissful winter sunshine and endless starry skies, cut short by low clouds. What is the point of January, many ask. If fungi asked themselves that question, they probably wouldn’t be here and therefore nor would we. Nature does not disappear completely in winter. The paucity of species can help introduce us to new ones we never knew existed.

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January to me is a good time to find slime moulds. Yes, I suppose this is two straight weeks of cheating after last week’s lichen love-in. But if this is the only way to raise awareness about slime moulds, I don’t think fungi will mind. I had an hour to look through the wooded slopes of an old estate in East Sussex, to find this week’s quarry.

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There was very little fungi of the mushroom kind, in fact, none. But one of the bad funguys had been making itself felt in the wood. Ash trees had been felled after becoming infected with ash dieback. I used to monitor a woodland at the time of ash dieback’s arrival in the UK and have, since about 2014, watched it rocket across the country. In Sussex it is killing lots of ash trees that are under 50 years of age and the landscape of the South Downs is losing a lot of its higher woodland.

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Here you can see the effect of the fungus, though of course many other fungal organisms will be benefitting from the decay caused by the disease. The rot has moved from the outside in through what are the softer layers of waste wood. Had the fungus weakened two thirds of the overall mass, the tree would probably have fallen down. Lots of people walk under these trees, so that’s why they have to be pushed before the wind shoves them.

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I have been exchanging emails with a fellow macro photographer this week who has been spending hours looking for slime moulds. One day this week he looked for four hours and found nothing. I was lucky enough to walk straight outdoors for a few minutes and happened upon this epic spread on the tree above:

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No, slime moulds aren’t fungi, they’re not even moulds, which are another kind of fungus. I still don’t have the slime mould ID book so any help is welcome.

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The thing that amazed me about these slimeys was that you could barely see them, even when I knew they were there. They camouflaged so well with the glowering winter light. The photos here have been taken with a flash.

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I could have spent all day with this spread but only had an hour and my small camera. Up close they look like little black kalamata olives. Nom, nom and nom. Though inedible.

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The land managers had left lots of standing dead trees which is excellent. There is some epic misinformation going around about deadwood in woodlands and their contributions to forest fires. It’s guff aimed to misinform people, appeal to people’s fears (what a surprise) and promote the destruction of these habitats. In Britain our native woods of oak, beech and so on, are far too wet to ever burn like a heath.

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The crevices seen above are the perfect places to find slime moulds in cold weather. This is because they provide microclimates and protection from the elements.

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Here I found some old stalkballs which are fungi (or maybe a species of slime mould, am not quite sure), plus the real life of the party:

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DISCO. I’m not sure which species of disco the blue cup fungi are, but the orange fruiting body is definitely a slime mould. They were few and I couldn’t get a good angle on them.

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Thankfully this blue disco brought the party on Fungi Friday.

Please do share your finds this week in the comments below. Also here are some fungi things of interest this week.

Thanks for reading.

First mushrooms appeared earlier than originally thought

More mushrooms

 

 

 

 

 

Photography: Ash tree

Daniel GreenwoodLeave a comment

Ash coppice, North Downs, October 2015-1

A coppiced ash tree along the North Downs Way near Oxted, October 2015. Coppicing is the act of cutting a tree at its base to harvest wood and encourage more growth in the following years. This ash is now grazing land and is likely to be left over from formerly coppiced ancient woodland, tracts of which are still found along the edges of the field. The tree is full of holes and crevices for fungi and invertebrates but must be feeling the pressure of the hoofs of grazing livestock on the ground around it.

See more in my North Downs diary

Woodland Diary: Sycamore coppicing

Daniel Greenwood13 Comments

Holly blue

This was the first workday for the Friends of One Tree Hill (FrOTH). We coppiced 10 sycamore (Acer pseudoplatanus) trees and cut back the bramble (Rubus frusticosus) which is so dominant on the site. In the case of sycamore we were felling trees of some thirty-feet or more in height that were competing with the sessile oak trees (Quercus patrea). These oaks are regenerating on the slope of the south-facing hill and are slow growers compared to the highly successful sycamore. We felled the trees also to allow light in and let the herb layer regenerate. This is a technique which helps insects and butterflies in particular. PlantLife reports that by 2002 97% of British broadleaf woodland had become high forest. In 1951 that figure was at 51%. This means that most of our woodland is dark and overgrown generally because humans have stopped relying on woodland as a resource for firewood, furniture, grazing of livestock and so on. One of the great misconceptions about woodland is that felling a tree is somehow a bad thing when, on the contrary, wildlife flourishes when trees are cut down in moderation and sunlight can get in to bring life to the woodland floor.

One ancient tradition which has gone out of fashion is the art of coppicing. This is a process of cutting a tree down to its base, generally of hazel (Corylus avellana) or ash (Fraxinus excelsior), which means that the tree shoots new, straight growths. These poles were used for a variety of things, often as fencing. Sycamore is not a typical coppice tree, but the stumps we cut down to in One Tree Hill will shoot similar growths in the spring and summer. In the meantime the wood we have cut will be used either to make log piles for beetles and other bugs to inhabit, otherwise the material will be used to make handrails or deadhedges in the wood. The point of managing a wood in this way is to show that using the material, i.e. trees, is not a negative thing and can boost wildlife in the short term. The Pearl-bordered fritillary (Boloria euphrosyne) is one butterfly which saw a decline in numbers after the tradition of coppicing declined in the 20th century after we began to rely on gas to heat our homes and use wood imported from overseas. You can see that a tree has been coppiced if you spot thin shoots and the hairy green leaves of a hazel. This technique is renowned for its benefits for wildflowers such as wild primrose (Primula vulgaris) and bluebells (Hyacinthoides non-scripta) which can burst into life when the coppice is cut. These are plants indicative of ancient woodland and seeing as One Tree Hill is located in the area which was once part of London’s Great North Wood, we are hoping that some plants, in certain areas, could reappear one day, not to mention the wildlife which feeds from them. Sydenham Hill & Dulwich Woods and Dulwich Upper Wood are two fragments of the Great North Wood which have ancient woodland flora growing there, and have done for thousands of years. Perhaps one day One Tree Hill can be in a similar vein of health.