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Posts Tagged ‘Greater Scented Liverwort’

It was another of those hot, humid July days last Sunday so I decided to see if the air conditioner was running up in the deep cut rail trail in Westmoreland. It was, and the relief was immediate. This man-made canyon creates its own breeze and the air blowing over the moist canyon walls usually runs about 10 degrees cooler than it is “out there” in the world. It was wonderful to stand there and be cooled but taking photos was a chore because it was very dark due to all the overhanging trees. I had to use the flash to get this photo, which is the mediocre best of a poor lot. But it does show you what I’m talking about and I guess that’s the point.

The railroad used a lot of the stone they blasted out of the bedrock in the previous photo to build walls, and as a dry stone wall builder myself I can say that they’re impressive. This example is a massive retaining wall, built to keep the hillside from flowing onto the rail bed. You can’t tell from the photo but it tilts back into the hillside at about 10 degrees, just as any good retaining wall should. It’s probably also much thicker at the base than at the top. Not quite Mayan joints but close enough for me; these walls have stood without losing a stone for over 150 years.

I stopped to look at what I thought were intermediate wood ferns (Dryopteris intermedia.)

A look at the back of the leaf confirmed that they were indeed intermediate wood ferns. The tiny spore bearing sori are part way between the central vein and the outer edges of the pinnules. A pinnule in botanical terms is a secondary division of a pinnate leaf, but I usually just think of them as leaflets and in my own mind don’t pay much attention to the fancy (but correct) terminology. It just doesn’t seem as important as it once did. The beauty of it all is enough these days.

And I saw plenty of beauty here, like these fern like leaves of wild chervil, which grows along the trail. Wild chervil is thought to have come over from Europe in wildflower seed mixes. It has been growing in this area since the early 1900s and is considered a noxious weed in places. Wild chervil contains chemical compounds which have been shown to have anti-tumor and anti-viral properties. It isn’t the same plant as cultivated chervil used to flavor soups though, so it shouldn’t be eaten.

Daisy fleabane (Erigeron annuus) had a visitor so I didn’t want to intrude. There are an amazing amount of insects here.

What I think was a cabbage white moth rested on a leaf in a shaft of sunlight. Ancient superstition said that a white moth embodied the soul of a loved one. This came from the ancient belief that the night is a dwelling place for souls and it is also the realm of the moth.

In winter this place is like a frozen Arctic wasteland but in summer it becomes a lush paradise with an incredible variety of species growing on every square inch of ground.

Plants, mosses, liverworts, fungi, and algae all grow on the stone walls of the canyon and add to the lushness. In summer this place reminds me of the Shangri-La described by James Hilton in his novel Lost Horizon. For someone who dreamed of exploring the Amazon Jungle as a boy, it’s the next best thing.

One of the most unusual things growing here are these green algae, called Trentepohlia aurea. Though it is called green algae a carotenoid pigment in the algal cells called hematochrome or beta-carotene color the algae orange by hiding their green chlorophyll.  It is the same pigment that gives carrots their orange color.

The algae are surprisingly hairy and in some cases can produce enough spores to color the rain. When you hear of a red, black, or green rain falling algae spores are almost always the reason why. I’ve never seen these examples producing spores but then I wonder if I’d even know that they were doing so. The spores must be microscopic. Everything you see here would fit on a penny with room to spare.

Much of the growth along the side of the trail is spotted jewelweed (Impatiens capensis.) Jewelweed doesn’t mind shade and many thousands of plants grow here.

Out of all the many thousands of jewelweed plants I saw just one with a flower, and this is it. The white pollen at the top of the opening tells us that this is a male flower. Soon there will be many thousands of flowers, both male and female.

There are also many flowering raspberry plants growing here and many were still blooming. Purple flowering raspberry (Rubus odoratus) is in the rose family and it isn’t hard to tell by the flowers, but the big light gathering leaves look more like a maple than a rose. The big leaves give it a certain tolerance for low light, and that’s how it can grow here so well. The fruit looks like a giant raspberry, about the size of the tip of your thumb. I’ve heard that it is close to tasteless but some say if you put a berry on the very tip of your tongue it will be delicious. I keep forgetting to try it.

Other berries found here include those of false Solomon’s seal (Maianthemum racemosum.) These berries turn bright red but before they do they are speckled red and green for a time. The plant is also called treacle berry because the berries taste like treacle or bitter molasses. They’re rich in vitamins and have been used to prevent scurvy, but large quantities of uncooked berries are said to act like a laxative so moderation is called for. Native Americans inhaled the fumes from burning roots to treat headache and body pain. They also used the leaves and roots in medicinal teas.

The railroad dug drainage ditches on either side of the rail bed and because the groundwater constantly seeps through the stone the ditches always have water in them, no matter how hot or dry it has been. I always wear rubber boots when I come here so I can walk in them and get closer to the canyon walls when I need to. I have to be quick though because stones of all sizes fall from the walls. For the first time I actually heard one fall on this day. It must have been small because it made a clacking sound. Thankfully it didn’t fall near me.

One of the reasons I like to walk in the drainage ditches is because greater scented liverworts (Conocephalum conicum) grow on the stone and I like to see them up close. Two winters ago I saw an alarming amount of them turn an ashy gray and they appeared to have died, but since then the many colonies seem to have bounced back. Scientists say that liverworts are like “a canary in a coal mine” because they are very vulnerable to environmental changes and will be one of the first organisms to show the effects of climate change. On this day most of them looked good and healthy.

This is one of the most beautiful liverworts in my opinion because of its reptilian appearance, which is caused by the way its pores and air chambers are outlined on its surface. It is the only liverwort with this feature so it is very easy to identify. And, if you squeeze a small piece and smell it you’ll immediately smell one of the cleanest scents found in nature that I know of. In general liverworts are a sign of very clean water, so that says a lot about the quality of the groundwater in this place.

In this photo you can see how wet the stones are from the ever dripping groundwater. All that water means that many plants with tap roots or extensive root systems like dandelions and even shrubs and trees can grow in the thin soil that is found on horizontal surfaces. This photo shows a Jack in the pulpit (Arisaema triphyllum) that has grown on the stone and fallen over. Though it’s growing on stone it’s perfectly healthy and even has produced berries. Jack in the pulpits have corms for roots. A corm is a kind of flattened bulb and other plants like crocus and gladiolus grow from them.

I saw many Jack in the pulpits here and most had berries that hadn’t ripened yet. When ripe these berries will be bright red and shiny like they’ve been lacquered. Deer love them and will chomp off the entire stalk of berries when they can. That’s why it’s so hard to show you a photo of ripe Jack in the pulpit berries.

I finally reached my turn around spot, which is the old lineman’s shack at one end of the deep cut canyon. I usually dawdle here for a while, marveling at how a building that has so many missing pieces can still stand. So many boards have been taken from it there isn’t much left, but so far it still makes it through our snowy winters. It fits the very definition of well built, but that’s how they did things in those days.

This is where the planks from the lineman’s shack end up; as bridges across the drainage ditches. They do come in handy but I’d still rather see them on the lineman’s shack.

To look at any thing,
If you would know that thing,
You must look at it long.
~John Moffitt

Thanks for stopping in.

 

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