Title: I' Plants Without Seeds
1I. Vascular Plants angiosperms, gymnosperms,
ferns
2A. Some vascular plants have seeds
- They have a greater chance to reproduce than
plants without seeds. - They grow only when conditions are right (not too
hot or too cold). - Groups of seed plants include angiosperms and
gymnosperms.
3B. Angiosperms-Flower or Fruit-Bearing Plants
- Largest classification group of all plants
- Broken down even further by flower or fruit
- Their fruit is a ripened seed that contains a
baby seed inside.
4C. Gymnosperms
- Gymnosperm means naked seeds.
- They have unenclosed seeds (no fruit to cover the
seeds). - Include coniferous plants, which have cones to
help in reproduction.
5D. Some vascular plants do not have seeds.
- These plants do not reproduce by seeds.
- They reproduce by spores just like non-vascular
plants, but they still are vascular plants. - Ferns are both vascular and seedless.
6E. Ferns
- Largest group of SEEDLESS plants
- Grow in a variety of places and have different
appearances - Live in moist habitats
- Form spores to reproduce
- The spores are found on the fronds (leaves of the
fern)
7Glenn Seaborg Trail in New York
http//www.science.doe.gov/SC-80/trail/ferns.htm
8Torch Valley, Saskatchewan, Canada
http//www.sasktourism.com/torchvalley/photo_galle
ry.htm
9II. Nonvascular Plants Mosses and Liverworts
10A. Mosses
- Seedless
- Grow in moist environments
- Need water to complete their life cycle
- Do not have roots, leaves, or stems
11B. Characteristics of Liverworts
- Seedless
- Grow on rock or soil where there is LOTS of water
- Name came from medieval times when people
believed that since the plant looked like a liver
that it would cure liver disease. This was later
proved untrue.
12Riverside in Big Sky, Montana
http//www.bigskycachers.com/Photos/wet20moss201
.jpg
13Volcano in Iceland covered in moss
http//www.arrakeen.ch/europe/1252020volcanic20
stone20covered20with20moss.JPG
14Moss on a branch, location unknown
http//www.wallpaper.net.au/wallpaper/plants/Moss
20On20Branch20-201024x768.jpg
15Tiger Wilderness, Australia
http//www.tigerwilderness.com.au/cradleimages/Pla
nt20Moss.JPG
16Liverworts of Unknown Location
http//www.mybitoftheplanet.com/2002/frogjune_file
s/liverwort1406big.jpg
17Magnified picture of Liverworts
http//www.bioimages.org.uk/MMWSt/MinDSDII/1975/75
-02/75-02-01/75B01Sphaerocarpos2.jpg