Plant Classification Mrs. McIntosh 2014. How are plants classified? 1. By how they transport (move)...
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Transcript of Plant Classification Mrs. McIntosh 2014. How are plants classified? 1. By how they transport (move)...
A. Non-Vascular plants
Definition: Plants without tubes; grows close to ground; absorbs water & nutrients directly through cells; small; live in damp places.
Examples: liverwort, moss, hornwort
B. Vascular
Definition: Plants with tubes2 types:
1. Seedless plants-These plants reproduce by spores; no seeds
Examples: fern, horsetail
What is a spore?
Definition: A spore is a single cell that can develop into an exact copy of the plant from which it came
Size=very smallLocation=under the leaf area of
ferns…Growing requirements=wet
environment
Growing Ferns From Spores(courtesy of Sue Olsen)
Ferns are reproduced from spores that are gathered in clusters called sori, which are usually on the underside of the fronds. The spores can be yellow, green, brown, or black. The sori are sometimes covered with a membrane called an indusium, which will lift up when the spores are ripe. In the Pacific Northwest, spores ripen from late May through October and will waft off like fine dust.
Seed plants
2 groups of seed plants:
1. One kind is a gymnosperm. These plants do not produce flowers; they have cones; most are evergreens (soft wood)
Examples: pine tree and fir tree
Seed plants, continued
2. One kind is an angiosperm. These plants produce flowers
Examples: daisy, rose, tulip,…