Biodiversity 2


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Biodiversity 2

  1. 1. Beech
  2. 2. <ul><li>The beech is a deciduous tree. It is a large tree , capable of reaching heights of up to 49 m and 3 m diameter. The leaves are alternate, simple, and entire or with a slightly crenate margin, 5–10 cm long and 3–7 cm broad, with 6-7 veins on each side of the leaf . Climate and temperatures vary, though humidity needs to be constant. It prefers moderately fertile ground and tolerates rigorous winter cold, but is sensitive to spring frost. </li></ul>
  3. 3. Linden
  4. 4. <ul><li>Lindens are deciduous trees that can grow to a height of 90 feet and may live up to 1,000 years. Some species are often planted along city streets. Depending on the species, their fragrance ranges from strong and sweet to quite rich. Linden flowers, leaves, wood, and charcoal (obtained from the wood) are the parts used for medicinal purposes. Active ingredients in the linden flowers include flavonoids (which act as antioxidants), volatile oil, and mucilage components (which are soothing and reduce inflammation). The plant also contains tannins that can act as an astringent. </li></ul>
  5. 5. Oak
  6. 6. <ul><li>The oak is a deciduous tree that has a typical hard wood. It reaches 18m to 30m or a little more depending upon growth conditions . Oaks have spirally arranged leaves , with a lobed margin in many species , some have entire leaves with a smooth margin. The flowers are produced in spring . The fruit is a nut called an acorn. E ach acorn contains one seed (rarely two or three) and takes 6–18 months to mature, depending on species. The live oaks are distinguished for being evergreen , but are not actually a distinct group and instead are dispersed across the genus. </li></ul>
  7. 7. Fir
  8. 8. <ul><li>The fir is a coniferous tree, that have around 45 different species of its kind. It can be found in the mountain regions, they reach heights of 10 to 80 m. </li></ul><ul><li>Needles or blades of the tree are usually less than 2 inches long and do not change color in the fall. </li></ul><ul><li>Fir trees are also used as Christmas trees, where we put our presents for the family. </li></ul>
  9. 9. Spruce
  10. 10. <ul><li>The spruce is a coniferous tree that reaches over 20 to 60 m. The needles, or leaves, of spruce trees are attached singly to the branches in a spiral fashion, each needle on a small peg-like structure. The needles are shed when 4–10 years old, leaving the branches rough . The fruit of the spruce is called cone. </li></ul><ul><li>Spruce is one of the most important woods for paper uses, as it has long wood fibres which bind together to make strong paper. The fruit of the spruce is called cone. </li></ul>
  11. 11. <ul><li>Pine </li></ul>
  12. 12. <ul><li>The pine is a coniferous tree that grows over 80m, but the majority of species reach over 45 m. Pines are long-lived, typically reaching ages of 100–1,000 years, some even more. The bark of most pines is thick and scaly, but some species have thin, flaking bark. The branches are produced actually a very tight spiral but appearing like a ring of branches arising from the same point. </li></ul><ul><li>It has a juvenile type of leaves each one long from 2- 6 cm. </li></ul>