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HOW TO DO
IT
1. Make a herbarium collection
(pressed plants)
Botanists make dried pressed specimens of plants as a
means of keeping a permanent record of the vegetation in an area. The
pressed material may include mosses, liverworts, seedless vascular
plants conifers and flowering plants. The pressed specimens are
catalogued and kept in an herbarium. Many herbaria exist in the world,
in universities, botanical gardens, and museums. For a list of world
herbaria see this website.
http://www.tau.ac.il/lifesci/botany/herbaria.htm
There are many methods for producing good herbarium
specimens. The following sites are particularly useful.
Missouri
Botanical Garden-Field Collecting techniques
An excellent but somewhat lengthy introduction to collecting and
pressing plants.
http://www.botany.utoronto.ca/courses/BOT307/B_How/janeTOC.html
This is a really useful site, especially for students learning how to
prepare herbarium specimens for course work at the university level.
There is interesting information on the naming of plants and in the
appendix a useful section on the meaning of specific epithets. The
reference section is also good.
Preserved and
pressed plants
for elementary and high school students
Making a collection of dried plants can be a good way to
teach young students about plants. The following site gives a number of
suggestions for drying plant material, including the use of silica gel
and also the use of a microwave.
http://hgic.clemson.edu/factsheets/HGIC1151.htm
Another site has good instructions for drying and
pressing plants for use in card crafts etc. The methods include
traditional pressing between telephone directories and also drying in
the microwave. You may find commercial plant presses for use in the
microwave but a heavy casserole dish or similar heavy microwave-safe
object will perform the job just as well and be cheaper!
http://www.creeksideinc.com/good_day.htm
Go to this site and scroll down to "Pressing Flowers" by Phyllis Murell.
Tip for impecunious students
You may find that some of your peers are getting married
while you are still at college and in a financially embarassed
position. A good idea for a wedding gift is to ask the bride for a few
flowers from her bouquet. Press these according to any of the
instructions given above and compose a small picture of petals or whole
flowers. Frame the picture and present it as a gift. It may be
remembered more than many of the other gifts.
2. Make a presentation
- Oral presentations
Jeff
Radel at the University of Kansas Medical Centre has produced this
excellent tutorial on giving oral presentations.
The same author has some good ideas for the
effective use of visuals in presentations.
The
University of Northern Arizona has a good site with both podium and
poster presentations.
- Poster presentations
There is an art to producing a good poster for a
scientific meeting. The
American Society of Plant Biologists has a very informative site
which describes in some detail what makes a good poster.
A second site worth checking out is produced by Jeff
Radel at the University of Kansas Medical Centre.
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