Wednesday April 16, 2014
Tree pollen is a fine to coarse powder containing the genetic material of seed plants - including trees. Tree pollen produces male reproductive cells that have the ability to fuse with female reproductive parts and that union results in pollination.
Tree pollen grains are distributed by either wind or insects and animals.
Small, light tree pollen is blown by wind to female parts while larger tree pollen grains are deposited by insects onto the female ovary where pollination takes place. Tree pollen grains germinate and develop a pollen tube which grows down to the ovary and deposits the sperm cell which causes the production of seed.
via Tree Pollen - Production and Transportation of Tree Pollen.
Also: Pollen Producing Trees You Can Live With, Trees You Can't
Monday April 14, 2014
A tree is probably the most common, naturally growing or cultivated, living organism you will ever encounter on a daily basis. Most people I know have a real desire to learn more about a tree including looking at a tree in hopes to identify that tree. With this in mind, I have put together a list of tree topics that need some illumination including tree growth, tree tissues, tree identification and much more.
Treehugger - Getty Image
Monday April 14, 2014
Quercus virginiana or Southern live oak is a large, sprawling, picturesque tree, usually graced with Spanish moss and strongly reminiscent of the Old South. Live oak is one of the broadest spreading of the oaks, providing large areas of deep, inviting shade. It is the state tree of Georgia. Reaching 40 to 60 feet in height with a 60 to 100 foot spread and usually possessing many sinuously curved trunks and branches, live oak is an impressive sight for any large-scale landscape.
Windsor Ruin Live Oak - Photo by Steve Nix
Wednesday April 9, 2014
American elm is the most popular of urban shade trees. Ulmus americana has long been planted along downtown city streets in North America. The tree is now out of favor when considered for urban tree planting because of its susceptibility to Dutch elm disease.
Here is a walk-through description and guide to identifying American elm or Ulmus americana. Find out more about the tree's habit, range, silviculture and and pest problems.