BOTANY

Numerous programs covering the world of
botany from the microscopic algae to the
tallest redwood and oldest bristlecone.End-
less fascinating information for the scientist
& amature. GREATLY REDUCED PRICES!

PLANT CLASSIFICATION & ODDITIES
Introduces and surveys the plant kingdom, introduces phylogenetic classification and presents an array of strange and unusual plants. 3 pgms, 55 slides, detailed guides.
EP #280X SLIDES
$99.95

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SAVE $24.95 ON 3 SLIDE SET BUNDLE ORDER EP #280X.........$99.95
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THE PLANT KINGDOM Slides order #280...........$42.50

Surveys representatives of the divisions of the plant kingdom, from simple to
complex: algae, mushrooms, lichens, clubmoss, horsetail, fern, cycad, pine, Mormon
tea, lily, grass, buttercup, roses, mustard, snapdragon, vetch, cow parsnip, daisy,
hickory. 20 slides and guide

CONTENT SAMPLE: 16510 Another group of nonflowering, vascular plants are the
horsetails. The fertile fronds shown here appear in early spring and release clouds of spores from
their cone-like tips. As the season progresses, sterile green shoots develop which contain whorls
of short, stiff green leaves, making it somewhat resemble a horse's tail.

Some horsetails have only tiny leaves at the joints of the stem and must rely on the
chlorophyll in the stem for food-making. Horsetails are also called scouring reeds. The silica
they contain in their skeletons makes them abrasive enough to use for scraping and scouring,
either in their natural state or after burning. Their ashes still contain the silica and, with a little
water, make an effective polishing paste.

Horsetails are useful primarily as soil anchors because they can grow in poor soil and in
exposed or eroded places. Giant ancestors of today's horsetails flourished during the Carbon-
iferous period and form much of our coal deposits.
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PLANT CLASSIFICATION Slides order #SS-0395S .......$39.95

More than 55O,OOO species of land and water plants are found on our planet.
Representatives from each group are presented with focus on the distinguishing charac-
teristics by which they are classified. Particular emphasis is given to the phylogenetic
system of classification. 15 frames and guide. (Filmstrip order #SS-0395F........$15.00.)

CONTENT SAMPLE: 12. Seed-bearing embryophytes are divided into two groups:
gymnosperms and angiosperms. The gymnosperms are trees or shrubs with large, woody stems
(due to the continuous build up of xylem in their vascular cambium). They include cycads
(approximately 100 species), gingko (1 species) and conifers (550 species), and are represented
by the pine tree, a conifer. Gymnosperms are distinguished from angiosperms by their needle- or
spine-like leaves and their cones, which bear uncovered seeds.
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STRANGE LIVES IN THE PLANT WORLD Slides order #279 .......$42.50

Program presents plants with unusual life styles: strangler fig, air plant, Spanish
moss, cypress, agave, yucca, Indian pipe, pitcher plant, sundew, skunk cabbage,
horsetail, honey locust, gingko and vine. 20 slides and guide.
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~1050-085~ Stiff leafed wild pine. photo by Fred Whitehead.

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