Wednesday, September 30, 2009
Indian Grass Field
Tuesday, September 29, 2009
Return of the Fungi
This resembles an Orange Earth Tongue fungi, except that it was growing from a log when the book said it should be growing from the ground.
I’m calling these shelflike fungi Pancake Fungi* since they look like that popular breakfast entrĂ©e. I found them growing from an old apple log. (* Be advised that this name is a personal creation and is not likely to be found in any authoritative Fungi text.)
The underside of the Pancake Fungi. A standard set of fungi mug shots requires top view, side view and bottom view.
This is a fungi know as the Wolf’s-milk Slime (Text book name). At this stage, these balls contain a orange colored paste, some of which can be seen escaping from the middle ball on the left. The dark colored balls are the same species with the spores nearly ripe enough to release.
These tiny fungi give a nice frill to this old cherry stump.
This shelf fungi grew rapidly enough to capture a stalk of grass.Monday, September 28, 2009
More Bird's Nest Fungi
In July I found a single White-egg Bird’s Nest Fungi. It was very exciting because it was only the second time in my life that I had ever seen such fungi. Yesterday I found vast colonies of this fungi growing on old cedar branches in some of my brush piles. This one looks more like lima beans in a bowl.
The fungus grows as an enclosed body in which the eggs form. The eggs contain spores and when the spores are ripe, the cap on top decomposes. What’s left is the nest shape with the eggs inside.
Rain drops falling into the open nest splash the eggs up and out. As the egg leaves the nest, it uncoils a cord and anchor type structure that allows the egg to catch on the surrounding surface. Mycelium grow from the egg to begin development of a new colony of fungi.Sunday, September 27, 2009
Nostoc
Don’t worry, there’s nothing unappealing here. This is just sort of another type of plant. You are looking at a collection of cyanobacteria known as Nostoc. Cyanobacteria are a type of photosynthetic bacteria. This means that they capture energy from sunlight in the same manner as green plants.
Nostoc generally grows in areas of poor barren soil and is not really noticeable until heavy rains wash a bunch of it into a pile. This shot was taken along the edge of my gravel driveway. The same phenomenon occurs in the barrens, but the effect is not as dramatic as here.
A Nostoc colony is composed of long strands of bacteria contained within a gelatinous membrane. After being moved along by water, the colony looks like a green blob.
The blob can be rolled out to show that the colony is actually a thin layer. As the colony grows, this thin layer moves out across the soil surface. It requires moisture in order to function and grow. During times of dry weather the colonies dehydrate and resemble dark green or black cornflakes. Heavy rains hydrate the colonies and move them around.
Nostoc has the ability to convert atmospheric nitrogen into organic forms usable by plants. This makes the Nostoc a valuable aid to plants trying to colonize bare, low fertility soils. It’s also funny to hide a Nostoc colony in the palm of your hand and watch people’s reactions when they think you’ve sneezed out something really nasty.Saturday, September 26, 2009
Wolf Spiders
I was walking through one of the barrens when I spotted this wolf spider wrestling with a Burrowing Wolf Spider at the mouth of a spider burrow. As I approached, the dark colored Burrowing Wolf hurried down into the burrow. Seconds later, the lighter spider followed. I thought this was odd behavior and wondered what kind of activity I had interrupted.
I used my flash to get a shot down the burrow and caught the lighter spider a couple of inches below the surface. No sign of the darker spider.
At the flash, the spider shot back up to the entrance to the burrow. I waited for about five minutes to see if the other spider would come back up. It didn’t, so I wandered off to look around a bit.Friday, September 25, 2009
Late Coralroot
Here’s another neat little orchid. This is called Late Coralroot, Corallorhiza odontorhiza. It grows in the shadows of the woodland and is hard to see with its nine inch height, narrow stem and tiny flowers.
You have to get close to even see if this flower is blooming. Some of the flowers never open and are self fertile. Others, like the one shown, are fertilized by some type of insect. Some types of orchids are rare because of the loss of the specific insect providing pollination service. A self fertile option can allow a population to maintain itself, but doesn’t allow for any genetic exchange.
The stems and flowers are predominately a red or purple color. There are no leaves and because it has no chlorophyll, the plant doesn’t produce its own food.
The bulk of the plant is found growing beneath the soil surface as an underground stem called a rhizome. Coralroots are parasitic on Mycorrhizal Fungi, a condition known as mycotrophism. Mycorrhizal Fungi play a major role in the decomposition and transport of elements within the soil ecosystem. Research has shown that these fungi not only benefit plant growth in general, they are essential for the survival of some species.Thursday, September 24, 2009
Living Down Wind
Subscribe to:
Comments (Atom)












