Feeds:
Posts
Comments

Posts Tagged ‘Bushy Rock Lichen’

There is an old stone wall in Swanzey that I like to follow in winter because it has a southern exposure, and that coupled with evergreen branches overhead usually means that very little snow is on the ground. This year though, I got there to find that all the pine trees along the wall had been cut so there was snow right up to the wall. It’s still a great place to explore, so the bit of snow I got in my hiking boots didn’t really bother me. The reason the stones look like they do in this photo is because they are almost completely covered by rock greenshield lichens (Flavoparmelia baltimorensis).

Rock greenshield lichens are very common in this area and are another of those bits of nature that you see so often they no longer register, but when you take the time to look closer you find that they are quite pretty. They must like it here because they cover entire lengths of this wall. It had rained all day the day before so all the lichens I saw were at peak beauty.

The bushy rock lichen (Ramalina intermedia) I first found here a couple of years ago has grown quite a lot and there are even smaller ones growing under it now. Lichen communities grow in succession with many varieties of crustose lichens as pioneers. Foliose lichens come next as intermediary species and finally fruticose lichens like this one are considered climax species. What I don’t know is, how much time is between pioneer and climax? Climax communities of lichens are considered “old growth” communities.

The sun tried to come out but the clouds won the battle.

I believe there must have been animals kept here in the past because holes were drilled into stones and steel rods inserted into them to increase the wall height by about a foot and a half. Each rod has a flattened tip with a hole in it and the hole most likely had wire passed through it. It was fairly common practice in New England.  Stone walls were usually too low to be effective and cows and other farm animals often jumped right over them, so their height was increased by adding wire or other materials. You had to pay a fine if your animals escaped and were caught roaming free. They were brought to the town pound and the owner had to pay to get them back plus the cost of feeding them.

As the steel ground against the granite over the years the holes were made bigger so cut nails were driven in beside the rods to keep them straight. The cut nails seen here date the steel rods to sometime between 1800 and 1900, but the wall itself has been here I think since the mid-1700s.

Because it’s so warm near stone walls in the winter plants like to grow along them. Common speedwell (Veronica officinalis) thrives here. This European native is common here and has been used medicinally for centuries. Its leaves have also been used as a tea substitute and I wouldn’t be surprised to find that the early settlers brought it with them.

Mullein (Verbascum thapsus) also does well here along the wall. In fact there is an amazing variety of plants growing on or near this wall. Native Americans used tea made from mullein’s large, gray green furry leaves to treat asthma and other respiratory ailments. It is also said to be useful as a relaxant and sleep aid.

This is a shot of one of the roots of a very old pine stump. They looked to be slowly rotting away but the wave pattern in this one caught my eye. You don’t see things like this every day.

Pixie cup lichens (Cladonia asahinae) grow all along the wall. The tiny little golf tee shaped parts are the fruiting bodies of this lichen. Spores produced in them will be splashed out of the cup by raindrops.  Pixie cups almost always produce large groups of fruiting bodies like these.

Scattered rock posy lichens (Rhizoplaca subdiscrepans) grow all along the wall in sunnier spots. They are quite small and difficult to see without magnification, but it’s worth looking for them because they almost always have their bright orange apothecia showing. They like to grow on stone, especially granite, in full sun.

All of the sudden I’m seeing lots of chipmunks, and here was a chipmunk burrow. These little rodents, bigger than a mouse but smaller than a squirrel, store food for winter in underground chambers and stay underground until spring. In spring they’re usually very hungry, hence all the activity. They love to run along stone walls as well and often follow me through the woods that way, chirping and chucking the whole way.

Some of the stones here are like quilts with such a patchwork of lichens on them.

The most common stone walls in this area are “tossed walls.” Farmers worked from dawn to dusk in Colonial New England and tossed walls required the least amount of time and effort because smaller stones were literally tossed or thrown on top of one another. In the early years getting rid of the plentiful stones quickly and efficiently was more important than enclosing the fields, but this farmer took the time to build a seat into this wall. It’s at the perfect height to sit on (I tried it) and wide enough for two people.

Near the stone seat is an iron ring in the wall where a horse could be hitched. Both the stone seat and hitching ring are in the shadiest part of this property so it makes perfect sense that this would be the place to sit and have lunch.

The farmer could even have had black raspberries for lunch, in season. They grow in several places along the wall.

As time passed barbed wire was often added to stone walls to keep animals in or out. This wire grew out of the very center of a pine tree, so it was tacked onto the tree quite a while ago. Running their saw into steel wire is one of a wood cutter’s worst nightmares come true but many things have been found inside trees, from axe heads to gravestones to even bicycles.

This chain hook is one of my favorite bits of antique iron work that I find here. A link from a chain would have been hooked over it and then another link hooked over a similar hook a certain distance away. Chains were (and are) often hung across roads or driveways as a way to say “no admittance.”  What I like about this example is the way the blacksmith tapered the hook over its length and finally ended it in what looks like a dragon’s tail. You can still see the marks of the hammer all along its length. It’s a beautiful thing and if I owned it, especially since my grandfather was a blacksmith, it would be considered a work of art.

Even in silhouette pokeweed (Phytolacca americana) can be readily identified by the long stalks that held its berries. What surprised me by these plants is how they were still standing. Pokeweed stems weaken quickly at ground level and it doesn’t usually take much snow to bring them down. Native Americans used the plant medicinally and also used the red juice from its berries to decorate their horses. Recently scientists found that the red dye made from the berries can be used to coat solar cells, increasing their efficiency.

A small oak tree hung on to its fall color and was beautiful on this cloudy, wet day. I loved seeing its bright cheery colors.

The truth is not in the touch of a stone, but in what the stone tells you. ~Rene Denfeld

Thanks for stopping in.

Read Full Post »

Actually stone walls can talk, but you have to speak their language to be able to decipher what they’re saying. Having built a few myself this one was relatively easy to understand. It told me that its builder didn’t have time for tight joint stone masonry and in any case most likely didn’t know how to build with stone anyway. He needed a field to plant crops in so he and his family could survive and these stones were in the way of the plow, so he tossed them in a long undulating pile, and that became what is now called a tossed or thrown wall, because the stones were literally just thrown on top of one another with no time or eye for intricacies.

The landowners on either side of the wall didn’t have time to patrol the wall and pull tree seedlings so many of them started growing down in the wall where their seeds fell. Some saplings were too close to stones to cut with an axe or saw so they grew to massive size, sometimes pushing the wall stones apart ever so slowly  to make room for the huge trunk. Now, over 250 years later they shade the wall and keep it from being covered in deep snow. Some, like the white pine shown above, still stand even after being struck by lightning. The old split in its bark runs from the top of the tree all the way down its trunk, following a root right down into the ground. I’ve found trees like this one soon after they were struck and the ground around them was covered with narrow strips of bark, blown right off the wood by the lightning bolt.

You can see many interesting things if you look at our stone walls carefully, like this blacksmith made hitching ring where someone would have hitched up a horse. The odd thing about it is its location in the wall. It’s in an empty place where it doesn’t look like there would have much going on but 250 years ago it could have been a community information hub, for all I know. Most likely it was simply a shaded place for the horse to rest while the rider did whatever they had to do here.  I’m guessing it involved a lot of work.

My grandfather was the town Blacksmith in Westmoreland which is to the north west of here, so I’m always fascinated by iron work. The chain hook shown here is one of the best examples of 18th century blacksmithing I know of. I like it because it shows hand hammered marks and shows the fine workmanship and talent of the smith. He didn’t have to make such a utilitarian object as beautiful as a dragon’s tail, but he did.

This stone in this wall is only the second place I’ve found a beard lichen growing on stone. I’ve seen thousands of beard lichens but they were growing on wood 99% of the time. I think this one might be a bushy rock lichen (Ramalina intermedia.) Lichen communities grow in succession with many varieties of crustose lichens as pioneers. Foliose lichens come next as intermediary species and finally fruticose lichens like this one are considered climax species. What I don’t know is, how much time is between pioneer and climax? Climax communities of lichens are considered “old growth” communities.

As this stone shows stone walls absorb a lot of heat from the sun and release it slowly all night long until the sun shines again the following day.

Because it’s so warm near stone walls in the winter many plants like this mullein like to grow along them. In fact there is an amazing variety of plants growing on or near this wall.

There are many ferns growing along this old wall. Some are evergreen and others, like this one, are trying to be.

Many types of trees grow along the old wall including shagbark hickory (Carya ovata) which is named, not surprisingly, for its shaggy looking bark. These trees drop large amounts of hickory nuts each fall so I thought I’d find one and show it to you.

Unfortunately the squirrels had already found all the nuts and I didn’t see a single one.

I did see a lichen on the bark of the hickory that I’ve never seen before though, made up of a grayish body (Thallus) with tiny black fruiting bodies (Apothecia.) I think it might be the tiny button lichen (Amandinea punctata) which grows on wood and has a grayish, barely perceptible thallus and flat, disk shaped, black apothecia. Each black dot seen here is very small; about the size of a period made on paper with a pencil.

At the base of the hickory was a stone with a forest of pixie cup lichens (Cladonia asahinae) on it. The tiny little golf tee shaped parts are the fruiting bodies of this lichen. Spores produced in them will be splashed out of the cup by raindrops.  Pixie cups almost always produce large groups of fruiting bodies like these.

Shield lichens have become kind of a ho-hum lichen for me because I see thousands of them, but the way this one seems to overlap like shingles and the way it grows in concentric circles is different, and I’m not so sure it’s a shield lichen at all. I’m leaning towards the zoned dust lichen (Lepraria neglecta) but I’ll have to go back and have another look to be sure. It also resembles the shingled rock shield (Xanthoparmelia somloensis.) Like any other part of nature, stone walls have their own mysteries.

Another lichen that I don’t see often is what I believe is the rosy saucer lichen (Ochrolechia trochophora) seen here. Its rosy or orange apothecia are large and pad like and I’ve read that though it usually grows on wood it can grow on stone as well. It could also be a scattered rock posy lichen but I don’t think so.

Sometime I can be fooled into thinking I’m seeing lichens when I’m really seeing something else. In this case I’m not sure what the green “something else” was but possibly algae. Why it was here in this spot and nowhere else along the wall, I’m not sure.

Common speedwell was enjoying the warmth from the wall and looked as good as it does in early June but of course it wasn’t flowering. This European native is common here and has been used medicinally for centuries. Its leaves have also been used as a tea substitute.

I think a lot of us believe that winter is a very wet season and it can be when the snow melts, but when it is cold and there isn’t any melting going on it can be very dry, and this white tipped moss (Hedwigia ciliata) reminded me of that. When dry it pulls its tiny needle like leaves in close to the stem and if dry enough it looks like strands of string or clumps of worms, and this gives it another common name of medusa moss. It hadn’t reached that point when this photo was taken but it was quite dry, even with snow on it.

Stone walls will give many gifts to those who walk slowly along their length and look closely. One of the greatest gifts they give me is green leaves in winter, even when there is snow on the ground.

Stones are all about time—time to find them, to move them, to place them, and time, occasionally, to chisel and shape them. And above all, time to see them, experience them, and fall under their spell. ~Charles McRaven

Thanks for coming by.

 

Read Full Post »