Transcript Plant Class Sp 2010/Betulaceae Family PP Talk Noah received 20

Family Betulaceae
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By Noah Berglund
Genera
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Birches (Betula)
Alders (Alnus)
Hazels (Corylus)
Hornbeams (Carpinus)
• Hop-hornbeams (Ostrya)
• 120-170 species
Classification & Characteristics
• Deciduous nut-bearing trees and shrubs
• Found in the northern hemisphere, and along the
mountains to South America.
• They are usually found near streams and lakes, or other
poorly drained areas.
• Leaves – alternate, simple, stipulate.
• Pollinate by wind
Birches (Betula)
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Small to medium sized tree.
Mostly in northern temperate climates
The bark of all birches is characteristically
marked with long horizontal lenticels, and
often separates into thin papery plates,
especially the Paper Birch
www.lullymoreheritagepark.com/birchtreeblog.htm
Alders (Alnus)
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Most common hardwood in the pacific
northwest
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Shade intolerant
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home.howstuffworks.com/common-alder-tree.htm
Hazels (Corylus)
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Small tree
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Male and female flowers are found on the
same tree
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www.geograph.org.uk/photo/549254
Hornbeams (Carpinus)
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Also known as Ironwood
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Only 1 species in North America, most are in Asia
www.louisvillebonsai.org/post/2008/05/Botanic...
Hop-hornbeam (Ostrya)
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Wood is very hard
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Gets its name, for the seeds look like that of a hops
plant used in beer.
http://www.dof.virginia.gov/trees/hophornbeam-east.htm
References
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Walters, Dirk., Keil, David., Murrell, Zack. 2006. Vascular Plant Taxonomy.
5th ed. U.S,: Kendal/Hunt. 180. Print.
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Betulaceae. (2010). In Encyclopædia Britannica. Retrieved January 20,
2010, from Encyclopædia Britannica Online:
http://www.britannica.com/EBchecked/topic/63629/Betulaceae
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Pictures found at URL on the page.