Posted on by tonytomeo · 10 Comments

Pinnate Leaves

P80428K.JPGThat refers to the pattern of the veins in the leaves. Long before studying horticulture and botany at Cal Poly, my classmates and I learned a bit about horticulture within the contexts of studying ‘nature’. While in the sixth grade, we all went to camp for a week. One of the many projects we did during that time was collecting a few leaves to represent three different vein patterns, and mounting them under clear plastic on a cardboard plaque. The three different patters were, ‘pinnate’, ‘palmate’, and ‘parallel’. I do not remember if we all used the same leaves, but for my plaque, I got a blue gum eucalyptus leaf to represent pinnate veins. Palmate veins were represented by English ivy. Parallel veins were represented by English plantain.

These two blue gum trees are the same trees that provided the leaf with pinnate veins for my plaque. This is not a good picture. There really are two trees here. The picture below is even worse, but shows that there really are two separate trees. They probably flanked a driveway to the old house outside of the picture to the right. They are not very healthy right now, and do not seem to be much bigger than they were back in November of 1978, when my sixth grade class was here at camp with them.

This camp happens to be right down the road from the farm. We are neighbors. It is gratifying to see that so much of the camp is just as it was four decades ago. The English ivy that was so common back than is completely gone now, probably because it is so invasive. The lawn around the blue gum eucalyptus used to be much weedier, and provided the English plantain leaves for my plaque.P80428K+

Posted on by tonytomeo · 1 Comment

Vasona

P80114Only a few bits and pieces of natural native vegetation can be found on the floor of the Santa Clara Valley. They are primarily in spots that were not useful for some sort of development. Almost all of the big coast live oaks and valley oaks that lived in the flat areas are gone. Riparian vegetation still survives on the banks of creeks, and in adjacent areas where it has not yet been cleared.

Vasona Lake Park is a Santa Clara County Park situated around the small Vasona Reservoir just north of town. Although much of the natural vegetation was cleared a very long time ago, and exotic vegetation was either added or naturalized, several big native trees remain, including several California sycamore trees.

Because these grand sycamores were more common here than anywhere else in our childhood world, and we did not know what they were, my younger brother knew them simply as ‘Vasona’ trees. They were tall and gnarly, with big holes in their bulky leaning trunks. The lowest branches were far too high for us to reach, so we cold not climb them. The leaves were not clean and smooth like maple leaves, so we did not mess with them too much.

Unlike most deciduous trees that drop their leaves within a limited time in autumn, California sycamores drop their leaves whenever they want to. Most leaves fall in autumn. Some linger into winter. If the summer is exceptionally dry or warm, many leaves fall very early. Anthracnose can make the first spring leaves fall almost as quickly as they develop.

Somewhere along the line, my younger brother learned that catching a falling leaf before it reaches the ground is lucky. Consequently, we often ran after leaves that we saw falling from high up in the sycamore treees, if they were falling slowly enough for us to get to where they were going before they did.

I ignore them now. I notice the patterns of defoliation just because I am an arborist, but that is about the extent of it. However, I happened to see this leaf falling slowly from near the top of a massive California sycamore, and just had to catch it; my lucky Vasona tree leaf.

Posted on by tonytomeo · 6 Comments

Leaves Leave

P80104+I do not know where they went. There are plenty that are not worth getting pictures of, but the pretty and colorful ones that I wanted to show off in the ‘Six on Saturday’ post are gone. I suppose that they are still out there. They just are not as pretty and colorful as they were earlier.

Pistache leaves deteriorate quickly. They were very colorful while still in the trees, but were not much to look at by the time they were on the ground.

Ginkgo colored well too, but after I got that one picture of the single leaf, I could find no others. The tree that sent that leaf is not in the neighborhood. ( https://tonytomeo.wordpress.com/?s=birthday )

I suppose that I could have gotten a good picture of a colorful sweetgum leaf. I just did not bother with them. Nor did I bother with flowering pear.

California sycamore does not color very well. It was a bit more colorful this year than it typically is, with a bit more orange in the hazy brownish tan, but still nothing too flashy. The leaves are not very pretty anyway. They are sort of big and flabby . . . and awkwardly asymmetrical. I mean, every leaf seems to be disfigured. They are not neat and distinguished like maple leaves are. I took this picture of a deteriorating leaf of a California sycamore because it was more interesting than colorful. There is barely any gold or orange left in it. Gray blotches left from anthracnose or powdery mildew certainly do not add much to the color. This leaf is unusually big because it came from a vigorous watersprout.

The heart shaped cottonwood leaf is still somewhat gold, with gray around the edges. Cottonwoods actually color nicely in other climates. Local trees defoliated faster than the foliage could turn yellow. They really did not like the late weather this year.P80104++