Magnolia x soulangiana is a hybrid of Magnolia liliiflora and Magnolia denudata. This magnolia is covered with fuzzy buds,
a couple of these deep pink flowers,
and lots of giant green aggregate fruits. This fruit is about 5 inches long.
The tree is multi-stemmed, so it looks like a giant shrub.
Thursday, August 27, 2009
Tuesday, August 25, 2009
Horse Chestnut
If you walk through the cemetery right now, you might think that fall is coming early.
Some trees are losing their leaves,
and when you crunch through the leaf litter, it smells like fall. It turns out that only the horse chestnuts are dropping their leaves, but it's not because their yearly schedule is off. They have anthracnose. That's an umbrella term for diseases of hardwoods caused by a group of related fungi. It seems that the cemetery only has a problem with the fungus Glomerella cingulata, known to attack horse chestnuts; I haven't seen evidence of anthracnose on any other type of tree.
The fungus starts out by killing spots on the leaves.
These spots grow bigger...
and eventually the entire leaf dies.
There are some trees with not a bit of green left. Although the fungus won't kill a tree, the defoliation will weaken it over time. The horse chestnuts in Green-Wood appear to be strong, though. They've managed to bear fruit despite their infection.
Some trees are losing their leaves,
and when you crunch through the leaf litter, it smells like fall. It turns out that only the horse chestnuts are dropping their leaves, but it's not because their yearly schedule is off. They have anthracnose. That's an umbrella term for diseases of hardwoods caused by a group of related fungi. It seems that the cemetery only has a problem with the fungus Glomerella cingulata, known to attack horse chestnuts; I haven't seen evidence of anthracnose on any other type of tree.
The fungus starts out by killing spots on the leaves.
These spots grow bigger...
and eventually the entire leaf dies.
There are some trees with not a bit of green left. Although the fungus won't kill a tree, the defoliation will weaken it over time. The horse chestnuts in Green-Wood appear to be strong, though. They've managed to bear fruit despite their infection.
Sunday, August 23, 2009
Dogwood
There are about 10 genera in the Dogwood family, and between 45 and 65 species (depends on which taxonomist you consult). The flowers (well, actually the bracts ) and fruit are useful in identifying the type, but since that time has passed, I'm missing some clues. My guess is Cornus florida.
These leaves should be changing to red in a month or two...
These leaves should be changing to red in a month or two...
Friday, August 21, 2009
More Japanese Maples
From afar, this Japanese maple is pretty attractive.
It has these lacy leaves and a bit of a drooping habit that, combined, make it look like a hazy mushroom.
But I thought there might be more to this tree, so I took a look underneath. I love these twisting branches.
There was another Japanese maple right across the road.
Not quite as exciting under the hood, but beautiful nonetheless.
It has these lacy leaves and a bit of a drooping habit that, combined, make it look like a hazy mushroom.
But I thought there might be more to this tree, so I took a look underneath. I love these twisting branches.
There was another Japanese maple right across the road.
Not quite as exciting under the hood, but beautiful nonetheless.
Thursday, August 20, 2009
Paperbark Maple
I wasn't looking to post about this tree again - I was actually just walking up the hill to get a look at the chapel in the morning sun.
When I turned to head back toward the road, I was struck by the paperbark maple. The sun shining through the bits of peeling bark made the tree appear to be on fire (click on the photo to see what I'm talking about).
When I turned to head back toward the road, I was struck by the paperbark maple. The sun shining through the bits of peeling bark made the tree appear to be on fire (click on the photo to see what I'm talking about).
Wednesday, August 19, 2009
Franklin Tree
John and William Bartram discovered this tree in Georgia in 1765. William placed it in the new genus Franklinia, which he named after his father's friend Benjamin Franklin. Franklinia alatamaha is the only species in the genus.
Franklinia is extinct in the wild. Each tree that exists today has descended from seeds collected by Bartram.
Franklin trees bloom in late summer/early fall. The flowers have white petals and orange stamens. Here's an article with more info.
Franklinia is extinct in the wild. Each tree that exists today has descended from seeds collected by Bartram.
Franklin trees bloom in late summer/early fall. The flowers have white petals and orange stamens. Here's an article with more info.
Tuesday, August 18, 2009
Weeping Beech
To get a European beech weeping, just add "pendula" to the end of its name.
The leaves of Fagus sylvatica pendula are just like those of its non-weeping counterpart.
Not only are the branches pendulous, they are slightly contorted.
The cemetery has many weeping beeches, but the most enchanting one hangs over Larch Avenue.
To continue up the road, you have to walk (or drive) under the canopy.
The leaves of Fagus sylvatica pendula are just like those of its non-weeping counterpart.
Not only are the branches pendulous, they are slightly contorted.
The cemetery has many weeping beeches, but the most enchanting one hangs over Larch Avenue.
To continue up the road, you have to walk (or drive) under the canopy.
dragonflies
Sunday, August 9, 2009
Camperdown Elm
The Camperdown elm wouldn't exist had it not been for David Taylor. In Scotland around 1840, working as the Earl of Camperdown's head forester, he discovered a mutant contorted branch in the forest. The first Camperdown elm was cultivated by grafting the branch to the trunk of a Wych elm (Ulmus glabra).
(peeking under the canopy)
Every Camperdown elm in the world is from a cutting of that original tree. Cuttings are usually grafted onto Wych elms, but other grafting stock can be used, including Dutch elm, Siberian elm, and English elm.
(peeking under the canopy)
Every Camperdown elm in the world is from a cutting of that original tree. Cuttings are usually grafted onto Wych elms, but other grafting stock can be used, including Dutch elm, Siberian elm, and English elm.
seed pod revisited
Thursday, August 6, 2009
Japanese Snowbell
Mulberry
I found this mulberry tree on a hill above Sylvan Water, one of the four ponds in the cemetery. A mulberry tree (Morus) has leaves of three different shapes:
Saturday, August 1, 2009
Lotus
Japanese Maples
There are hundreds of different cultivars of Acer palmatum. They are chosen for leaf shape and color among other charateristics. Here are leaves of three different trees.
A Japanese maple has leaves with either 5, 7, or 9 palmate (fanning out from one center point) lobes. This one has 7 lobes. The margins are toothed.
A Japanese maple has leaves with either 5, 7, or 9 palmate (fanning out from one center point) lobes. This one has 7 lobes. The margins are toothed.
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