The mistletoe bough and New Year’s Eve

Some of the trees in Trendlewood Park play host to mistletoe, an ancient plant with mythological powers. Mistletoe is easiest to see in winter. when the trees have given up their leaves.

When older trees stand bare against the low sky, mistletoe hangs in their branches like dark thoughts. From the ground it looks an accident: round, self-contained worlds lodged high in the branches like lost balloons. Neither leafless nor quite at home.

Mistletoe growing on a tree in Trendlewood Park.
Mistletoe growing on a tree in Trendlewood Park. [Photograph: Neil Ingram]

In fact, evolution has shaped mistletoe into a highly effective machine for stealing space and water from mature trees. Firstly, there are separate male and female plants, each bearing flowers that produce pollen and fruits, respectively.

Female flowers of mistletoe. [Photograph: Neil Ingram]

These are the female flowers, with their orange stigmas that catch pollen carried by late winter insects in February–March. These early insects are attracted by scent rather than colour. As a reward, the insects receive precious food, at a time when few other nectar foods are available. The seed is held inside a white translucent globe, that is the fruit.

White mistletoe berries. [Photograph: Schnobby, under the Creative Commons Attribution-Share Alike 3.0 Unported license. https://commons.wikimedia.org/wiki/File:Mistletoe_with_berries.jpg]

The seed inside is wrapped in viscin, a gluey substance that stretches into threads when pulled apart. Mistle thrushes, blackcaps, and other winter birds gorge on the pearly berries when little else is available.

Birds wipe the sticky remains from their bills onto a branch, or pass the seed whole, leaving it stuck to the bark like a stain. There it waits, fixed fast against rain and frost, until spring warmth draws it into life. Germination begins not with invasion but with patience.

Mistletoe does not grow on a tree so much as into it. Its seeds, carried there by birds, germinate where they land and push a root-like structure—called a haustorium—through the bark and into the living wood. 

Mistletoe growing into a rowan branch. [Photograph: Neil Ingram]

From there it draws water and mineral salts from its host, tapping the tree’s transport system while still making its own sugars by photosynthesis. It is a hemiparasite: dependent, but not helpless; taking, but also growing greenly on its own account. The host tree bears the cost quietly, ring by ring, while the mistletoe thickens above, each year adding another fork to its slow, spherical architecture.

Gradually, over decades, the tree weakens and will eventually fail, as it plays host to more and more uninvited guests.

A protected Norway Maple tree, heavy with mistletoe. [Photograph: Neil Ingram]

Despite this quiet parasitism, mistletoe gives generously to the wood. Its evergreen leaves offer shelter in winter; its flowers feed early insects; its berries are a crucial cold-season resource for birds. In Trendlewood Park, the thrush that guards a mistletoe clump does so fiercely, chasing off rivals with sharp calls and sudden wingbeats. The plant becomes a defended territory, a winter larder, a node of life when the rest of the canopy is stripped to essentials.

Long before botanists described haustoria and hemiparasites, mistletoe had already rooted itself in British imagination. To the Druids, it was a plant apart, especially when found on oak, rare and therefore potent. Pliny the Elder described how it was cut with a golden sickle and caught in a white cloth so that it never touched the ground, as if earth itself might dilute its power. It was associated with fertility, protection, and the suspension of ordinary rules—a plant that belonged neither fully to sky nor soil, growing between worlds.

Druids cutting mistletoe with a golden scythe in the style of a medieval woodcut.

That sense of being between has never quite left it. Mistletoe grows easily upon apple trees, and in orchards it has a magical significance. Cut on New Year’s Eve and hung in houses, it provides protections against witches and goblins. The old branch, taken down on New Year’s Eve must be burnt.

Hung in gloomy houses at bleak midwinter, mistletoe became a licence for closeness, an excuse for kissing when the year is at its darkest. The custom is gentler than the old rituals but carries the same implication: that life persists, that green things endure, that intimacy and renewal are possible even now.

In Nowhere Wood, when the light is low and the paths are slick with fallen leaves, the mistletoe bough watches from above, evergreen and unapologetic. It lives by taking, but also by giving—food, shelter, stories. It reminds the trees, and those who walk beneath them, that survival is always a matter of connection, and that even the strangest relationships can bind a landscape together.

Happy New Year from Nowhere Wood.

  1. Summarise how the mistletoe plant makes seeds and how these seeds are spread to new trees

Notes on the story

The Apple Tree Man of Nowhere

Apples and the New Year

A year in the life of a sugar factory

The leaves of plants are everywhere in Nowhere Wood, helping to keep the wood alive. Leaves are organs: collections of living tissues and cells, having adventures in time and space. This is the story of a year in the life of an oak leaf.

Leaves are factories for making sugar from sunlight, water and carbon dioxide from the air. No human factory can do this, which is why we, and all other organisms, are so dependent on plants. Leaves are the producers of food.

Buds of the English oak.
Buds of the English oak. [Photograph: https://commons.wikimedia.org/wiki/File:English_Oak_(Quercus_robur)_buds_(8535459373).jpg]
In is late November and the cells that will divide to make the new leaf are protected safely inside the scales of the bud. Early in March, when the days warm and get longer, stem cells within the bud start to divide many times, producing all of the cells of the new leaf. To start with, the cells are very small and all look the same.

Emerging leaves. [Photograph: shutterstock_244078297, licensed by NI]
Soon, the cells take up water and get much larger. They escape the protection of the bud and the new leaf emerges. The new cells no longer look the same: they are on different journeys of development, becoming all of the different cells and tissues that make up the leaf.

 

New leaves. [Photograph: Stutterstock 671376856, licensed by NI]
The leaf is a factory for making sugar. Like any factory, it has a source of energy and transport systems to get the raw materials into the factory.  It also moves the manufactured sugar out to the places in the plant where it is needed. The heart of the factory is the production line where sugar is made. These are called chloroplasts and the leaf has millions of them, all making sugar whenever the sun shines. The Spring and Summer are sugar making seasons.

Oak leaves in autumn. [Photograph: Neil Ingram]
Gradually, in the autumn, when the days get cooler and shorter, the sugar factories are shut down and abandoned. The chloroplasts lie in ruins as everything useful is recycled back into the branches of the tree. All that remain are the frameworks of cell walls, turning brown as they dry in the autumn air.

 

Dead leaves
Dead leaves. [Photograph: Neil Ingram]
Finally, the oak tree makes a special layer of cells that separates the old leaf from the stem, and the leaf is ready to fall when the wind blows strongly. The fallen leaves are not wasted, becoming energy stores for the organisms that feed on them. Next year’s buds are forming and wait for spring and the production of new leaves.

If leaves are factories form making sugar, then trees are factories for making leaves.

Everything has its own season in Nowhere Wood.

  1. Think about how the leaf is a factory for making sugar. Where does its energy store come from? How do the raw materials get to the production line?
  2. The production of leaves is sustainable in Nowhere Wood. What do you think this sentence means?

Notes on the story

Subterranean superheroes

Climbing the walls

Hart’s tongue fern growing on the sandstone walls of Nowhere Wood. [Photograph: Neil Ingram]
A hundred years ago, Nowhere Wood was a sandstone quarry, and there is still a cliff face at the end of the wood.
How can this hart’s tongue fern grow on a vertical cliff face about two metres from the ground.

That is quite an adventure in time and space. This story explains how this fern can climb walls.


Ferns are an ancient group of plants, first appearing on Earth about 390 million years ago. That’s about 260 million years before the emergence of flowering plants.

Spores on the under surface of a fern leaf. Nowhere Wood. [Photograph: Neil Ingram]
Like fungi, another ancient group, ferns produce spores. They are the brown dots on the underside of this fern leaf. Spores are light and float in the air like particles of dust.

One spore floats up to a small crack in the rock face. Rainwater and the decaying remains of a leaf have formed a sticky, jam-like, humus inside the crack.  The spore sticks to the humus and germinates, developing into a tiny little plant, about 10 mm long.

Drawing of a gametophyte of a fern. [Image: https://picryl.com/media/prothallus-gametophyte-0bab1a ]
This is a fern, but it is not the mature adult form. It has tiny roots that grow into the humus, drawing nutrients from it.
This small plant is called a gametophyte because it makes gametes for sexual reproduction. Gametes are sperm and egg cells. 


These gametes will come together to make the adult fern on the surface of the tiny gametophyte.

Sperm from ferns. [Image: https://upload.wikimedia.org/wikipedia/commons/d/d7/Fern_sperm.jpg]
The gametophyte makes many small sperm that swim in the water on the surface of the plant. They swim towards eggs, which are much larger. This photograph shows a fern sperm fertilising a fern egg.

The sperm and the egg join together. A single cell is produced that will grow into the adult fern. Eventually this fern will make spores of its own.

This may sound like a long-winded and complicated adventure, but it seems to work well, because there are so many ferns in Nowhere Wood.

The fern exists in several different forms during its adventure: spores, eggs, sperm, gametophyte and adult plants. What do they have in common?

Each of these forms is made of one or many cells. Each cell contains a nucleus, and inside each nucleus is a genome. Genomes contain information. The information in the genome is the same in all of the different forms of the fern.

The genome contains the secrets of how to be a fern and how to move forward in the next step of the adventure.

  1. The fern exist in several different forms during its adventure: spores, eggs, sperm, gametophyte and adult plants. Think why is important that the genome in every form is the same? 

Notes on the story

Life is a relay race

Moving things on

The weather is warm and wet in Nowhere Wood.

These are perfect conditions for growing the fungi that spread  everywhere throughout the soil of Nowhere Wood. Fungi are Nature’s recyclers, feeding on the fallen leaves, fruits and wood.

Mycelia of fungi. [Photograph: Neil Ingram]
Fungi feed on the wood of the dead oak trees, turning it into nutrients that provide energy and chemicals needed  to grow new fungal cells.  (These cells form long threads called hyphae). Some fungi can spread out over really large areas, several kilometres wide.

At this time of the year, the fungi are busy ‘ being’.

Fungi in Nowhere Wood. [Photograph: Neil Ingram]
Then one night, silently and without warning, the fungi do something else.

They produce structures that we call “mushrooms” **.

Mushrooms are  fruiting bodies. They produce thousands of tiny spores.

Spores are small and light. They are carried on air currents to new places in Nowhere Wood, where they will germinate and grow into new hyphae.

Fungus in Nowhere Wood. [Photograph: Neil Ingram]
Spores have often been found in the filters of jet aircraft flying at the edge of the atmosphere, so some spores can travel right round the world. When fungi produce spores they are ‘becoming’ something new: small, light and mobile versions of themselves.

Decaying fungus in Nowhere Wood. [Photograph: Neil ingram]
Then, almost as soon as they arrive, it is all over. The fruiting bodies die and become food for other fungi and bacteria in Nowhere Wood.

This is how it is. The precious molecules are used, recycled and become part of the growth of new organisms. Nothing is ever wasted.

  1. Nearly all of the atoms present on Earth when life began to evolve about 3.7 billion years ago are still found on Earth today. Many of them are found locked inside living organisms. Sooner or later, all of these organisms will die. Imagine what life would be like without Nature’s recyclers.
  2. You are a collection of recycled atoms. Think about how carbon atoms enter and leave your body. [Hint, carbon atoms are found in carbohydrates and in carbon dioxide.]

You can read more about ‘being and becoming’ here.

 

**Some mushrooms are good to eat, others are really poisonous and can kill us. It is hard to tell them apart unless you are an expert, so it is sensible not to touch or eat any mushrooms you find in a wood.

Notes on the story

Climbing the walls

Squirrel wars

One hundred and fifty years ago, the oak woods near Nowhere would have been home to red squirrels. Now they have all disappeared.

A red squirrel. [Photograph: https://upload.wikimedia.org/wikipedia/commons/e/e1/Red_Squirrel_-_Lazienki.JPG]
The red squirrels have been replaced by grey squirrels that were introduced into the UK from the United States in the 1870s.

Grey squirrels spread to nearly all parts of the UK, replacing the red squirrels wherever they went. Now red squirrels are only found in a few places, where they are protected.

Grey squirrels are 60% better at digesting oak acorns than red squirrels, which seem to prefer hazel nuts. Oak acorns are much more common in Nowhere Wood than hazel nuts, and this favours the grey squirrel.

Grey Squirrel. [Photograph: Gary Helm, https://www.flickr.com/photos/ghelm/8645487905]
The success of grey squirrels at surviving and breeding in Nowhere Wood is due to the production of acorns, which varies from year to year.

Survival is a risky journey for any squirrel: the arrival of new competitors or interruptions to the food supply can pose real challenges.

 

Their lives are  adventures.

The word ‘adventure’ has two parts:

Ad means moving towards something.

Venture means attempting something dangerous or difficult, that is risky, with no guarantee of success.

Put the two together and you get the idea that the lives of all living organisms are risky journeys into the future, with no guarantee of success or survival.

If you like, you can think of life as:

organisms having adventures in time and space

  1. Think about the squirrels and the oak trees. In what ways are their lives adventures?  [Hint: think about what the word adventure means.]

 

Notes on the story

Moving things on

Being and becoming in Nowhere Wood

 

life cycle of a butterfly. [Image: https://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Butterfly_life_cycle_diagram_in_English.svg/1154px.Butterfly_life_cycle_diagram_in_English.svg.png]
All living organisms are doing two things at the same time. They are:

Being (they are keeping themselves alive) and

Becoming (they are moving towards the next stage of their lives).

The butterfly is being and becoming at each stage of its life.

All of the animals and plants in Nowhere Wood are also “being” and “becoming”.

  1. How are the oak trees in nowhere Wood being and becoming?
  2. How are you being and becoming

 

Notes on the story

Organise and stay alive

Trampling acorns underfoot

Acorns in Nowhere Wood


I have never seen so many acorns in Nowhere Wood. Everywhere I step, I am treading on acorns. Acorns are the fruits of oak trees and this year it certainly has been a bumper harvest.  Biologists call this a “mast year”.

The air in Nowhere Wood in April and May was very hot and still. This allowed the oak pollen to hang in the air near the feathery stigmas of the oak flowers. Perfect conditions for pollination and making acorns.

July and August were warm and wet, ideal conditions for growing a record crop of acorns.

A jay with an acorn. [Photograph: https://commons.wikimedia.org/wiki/File:2007-11-21_Jaybird,_Eichelh%C3%A4her,_Garrulus_glandarius.JPG]

This is good news for the birds of the wood, like pigeons, jays and woodpeckers, which eat acorns. And for the squirrels and mice, too. Deer eat acorns, and I did once see one near the woods very early in the morning. The oak trees are producers and this is one way that they make food for the woodland herbivores.

The oak trees in the wood are perhaps seventy or eighty years old now and tower above the other trees. They are successful, but for how much longer? The oldest trees are falling down, some by lightning strikes during thunderstorms.

It is difficult for young acorns to grow into oak trees, because the floor of the wood is covered by thick ivy and brambles. There is a battle going on here for light, space and water that makes an episode of Eastenders look tame!

Young oak seedling in Nowhere Wood. [Photograph: Neil Ingram]

Some young shoots make it through to the light, but they are few and far between. The future of acorns in Nowhere Wood will depend on them.

Everything is connected together, and a change to one organism affects everything else. The squirrels and the jays will be needing the oaks to remain successful. This is the way of life in Nowhere.



 

  1. Walk round an open space or a park near where you live. How are the living organisms depending on each other to survive?



Notes on the story

Counting the ways to stay alive