September 2009 Archives
This burr plant was found on West River Road near many other plants. These are often found on soccer fields and get attached to people's shoelaces, or other clothing and animal coats.
These berries were found in a plant on West River Road in Minneapolis. Many different animals eat these and digest them and disperse the seeds to other places around the Twin Cities..
The first picture didn't come out as clear as I'd hoped. I tried cleaning it up in photoshop, but it didn't really help. With the sky as the background, you can see seed pods that have burst open to scatter the seeds of a tree 80 feet from my house. I've seen some Discovery channel stuff on this and I'm wondering what the escape velocity of these seeds are. Too bad I don't have a stop-motion camera...
This picture is not of seed disbursal, it is proof of a conscious, sentient Universe. Throughout the ages, man has searched for answers. Why am I here? How did the Universe come to be? Well, I am excited to report that the Universe KNEW I had to do this assignment. I know this because the very day I was assigned to take pictures of various seed disbursal methods my girlfriend, Michele, came home and complained about these seed pods that had adhered to the leg of her pants. Knowing this couldn't be coincidence, I promptly grabbed my camera and proved the existence of an intelligence greater than our own.
The seeds on this tree are inside the red fruit. When animals such as birds ingest the fruit, they carry the seeds inside them and later are expelled in a new area.
Here are some small berries containing seeds. This plant relies on birds, squirrels, and other animals to carry the seeds away from the original plant. The animals may simply drag them off where the fleshy tissue around the seeds will decompose, or they may eat the seeds and disperse them elsewhere after the fleshy tissue is digested.
Here are seeds from a grassy type plant. The seeds are very light, ideal for being carried away from their origin by wind. They are also very small and have a way of sticking to or getting caught on things very easily, things such as animal coats or clothing where they can also be carried away from their origin.
Berries for the birds to munch. And then crap out onto a windshield.
These seeds have the perfect little parachutes for catching the wind. There was another one that had seeds hanging off of it, about ready to blow off, but I couldn't get any good shots of it. So here's this one.
These almond seeds are examples of dispersal by ingestion. They could be ingested by an animal, such as a squirrel, and then germinate away from parental almond tree.
This is a picture of pine cones as an example of wind disperal. The wind could make the cones fall far from the parental tree.
I found these seeds on the ground by my house. I set out to take the pictures after the extremely windy day on Sunday so all of the seeds that were on the trees are now on the ground, finding their new home!
I found these berries along side the foresty area close to my house. These seeds get dispersed through animals eating the berries, and later the seeds come out in the animal's droppings.
My dog led me to these sticker plants when I found the seeds all over her fur. I found them on the edge of a field next to some wind dispersal plant. Both can be see in the picture, the stickers are pear shaped and the white fluff is the wind seeds. Enjoy the pictures!
These plants are growing along the fence of an apartment building in uptown. They are located in the back of the building where there is not much sunlight. They are also growing amongst dry soil, rocks, and trash.
All week I had been looking for a spot that looked like it was under stress. I finally found one. ONe problem is that the bed is on an angle. This also means the water runs off of it quite quickly. Up unil the rain we had the night before I took the picture, it looked incredibly dry.
For my fruit, I took a picture of an orange. I thought it would be an interesting fruit to find the seed coat and pericarp. The fleshy orange part is the pericarp and the coating of the white seed in the right half of the orange is the seed coat.
Poor grass. And all those cigarette butts! I never even really noticed them until I took the picture!
I found my high stress environment at a rental shop. Around here there is a lot of foot and machine traffic. Chemicals and machine fluids are present and trace amounts around the area. Also it is subjected to the sun, when it is out, and to a lot of heat.
I found this grapefruit in my parents refrigerator. They are becoming a good supply for my picutres for this class!!
So I'd say I kind of get a kick out of coming up with titles. The problem here is pretty clear. The earth is covered in rocks which provide almost no moisture retention for plants to live in. Of course, we have urban superweeds that could survive a meteorite collision, but other than that, there is almost no plant diversity in this area.
Alright, well, hopefully the important bits of this photograph can be seen, regardless of the blurriness. I'm guessing my camera was malfunctioning at the time, and I somehow didn't notice. This was part of an apple purchased from a grocery store. Nothing too remarkable.
I saw these plants in some rocks right off Washington Ave. They were near each other - just not near enough to get a close up picture of them together. The bad conditions included poor soil (rocky), too much sunlight, and trash all over the area.
This is a picture of an orange I got from the dining hall in Comstock. The pericarp is the peel surrounding the fruit. I was able to peel off some of the seed coat to show that the white is the seed coat and the brown is the seed.
I found this fruit at the Comstock dining hall. The outside peel is the pericarp. I showed the seed coat by peeling part of it off the seed.
Here is a pomegranate I bought at a local grocery store. I found it interesting how the seeds are symmetrically spread out inside, and how they occupy such a large volume inside the fruit relative to its size. The natural juice also tastes pretty good.
Here is an area of my yard with little plant diversity. This turf is in a highly shaded area in between two houses and underneath a pine tree. There is also a moderate amount of traffic through this area and I wouldn't be surprised if the soil conditions are stressful as well being underneath an acidic pine tree.
This is a picture from outside the step of my house. The area is distressed from high foot traffic, and lack of water. If you look closely you can see where the neighbor's yard starts, and our's ends, because they water their yard frequently...
I recently became a pickle fanatic and have been eating them all the time! I was munching on a few the other day, while thinking of what I could possibly do for this assignment, and then it clicked! I researched the pickle online and found that a pickled cucumber does indeed have a pericarp and seed coat.
I'd appreciate your comments.
Here is another picture that shows the lack of plant diversity in the area as well as the stressful environment. Also I though it looked interesting.
b) Here is a picture of three different botanical fruits, a cucumber, a tomato, and an apple (which is actually part of the Rose Family). You can see the pericarp on all three, the exocarp of the tomato, and the seed coat on the apple seeds.
This plant looks like it has been frosted with snow, even though it was 80 degrees out when I snapped this shot from my neighbor's flower pot. It's real though, I checked. The nodes are distinct and there are leafs, the flowers, branches and a long continuation of the stem.
I found this plant in a garden in my friend's front yard. The Primary Rachis is shown up through the center of the image and Secondary and Tertiary Rachis off to the sides of the image supporting the Pedicels and flowers. There are also Bracts growing on the sides of the flower.
You can see that the peduncle is comprised of many nodes and internodes with some leaves sprouting off at certain nodes.
My favorite is definitely the Phlox Paniculata.
I found this plant in one of my mother's many flower boxes around our house in Northern Wisoconsin. These multiple flowers are actually growing from a second rachis on this plant.
In this picture I had the opportunity to find a fruit growing at the node. There is also a leaf and more steming.
Hard to really tell whether this is a corymb or a compound umbel...or what. But this is actually from a bush at my sister's house, and I found it to be quite pretty up closer. The photograph does not quite show the peduncle, but if you can imagine what is behind that leaf on the bottom, you'll likely see a very kind, welcoming stem. That's it. And, of course, the remaining structures are labeled. There are no bracts on this plant that I could see.
These two flowers are actually growing in my garden, and they are among the last blooms on the plant that have not yet been pollinated. Plus they just look sad, which gives me the impression that they loved and lost.
As you can see, the focal node is defined in the photograph as the point from which the flower sprouts, a new branch is formed, and the original stem continues.
This inflorescence is from a weed I’ve been trying to kill for weeks growing in my lawn. It tastes like chives. Coming from below is the peduncle, which is about a foot long. Then we get to the flowers, which are all individually located off of a single point, which make it a umbel, I’m pretty sure. Then we can see the pedicels, one per flower, and then the white flowers.
I found these flowers outside on the left side of Coffman Union. There are small leaves at the node, a flower on the left side, and the continuation of the stem.
This is a node from my Cascade Hop plant from the main bine. The node in focus has leaves coming off both toward and away from the camera. The leaf going toward the camera is behind the hops. The node also has two branches coming off of it, both toward and away from the camera. The bine continues after the node.
This is a picture of an inflorescence outside of Coffman Union. You can clearly see the peduncle, rachis, bracts, and some pedicels.
The first picture shows nodes along the stem. The second picture shows many pedicels. Both pictures were taken behind the radison on Washington Ave SE.
Here's my node! It is a plant that is growing around a tree in my back yard, I pass by it every day, and never noticed the unique structure of it! From the node three things are happening; there is a continuation of the stem, a leaf has formed, and there is a tiny bud about to open with a flower!
This is the picture of the inflorescences that I found. I was taking a walk, and noticed this plant in one of my neighbor's yards. It is a Compound Umble, and very pretty, I think!
The infloresence is a little hard to see but if you look behind the larger flower you can see a stem that would lead down to a leaf showing the paduncle and rachis. If you look closely into the flowers you will see there are many stems holding them to the main stem. I took this at the Como Conservatory as well.
This milkweed plant provides a great example for a node. It has a stem, leaf, and seed pod coming off of one node. I found this plant at the Como Conservatory when I was doing this project. I was hoping for a more tropical plant but settled with this. I really love the little grasshopper in the top left-hand corner!!! :)
I found this inflorescence along Washington Ave. As you can see, connected to the large stem (peduncle),are small stems holding individual flowers (pedicels).
I found this tree right outside Comstock Hall. As depicted here, at a node on this tree are a leaf, berry, and continuation of the branch.
Here is a node I found in Brainerd, MN that contains three of the four charactoristics we discussed. It has two leaves, two branching off stems, and an extension of the main stem.
Here is an inflorescence consisting of a peduncle, many rachises, and many pedicels leading to all the small flowers. This head shaped inflorescnce was found in Brainerd, MN where I spent the weekend.
Here's an example of an inflorescence that shows the three components that I want to see in your pictures: Peduncle (the portion of stem between the last node and the start of the inflorescence), the pedicel (the small bit of stem attached to the base of the flower) and the rachis (the bits of stem that are between the peduncle and pedicel including the central axis of the inflorescence plus branches off the axis that lead to the pedicel).
A daisy for outside my room. Also it clearly shows branching, leaves, and continued stem at the nodes.
One of my favorite flowers, because it attracts wild bees. Sedum (or Sedum telephium or Cultivar Xenox), which I found all over my yard and saw in several neighboring yards. I took a picture to show the numerous branching at the top nodes, but this didn't capture the flowering part well.