Vascular/non vascular, seedless/seed. Do Now Quietly review your notes on plants for 5 minutes.
Non-seed vascular Plants Divisions of non-seed vascular plants Psilophyta – whisk ferns ...
-
Upload
joanna-victoria-parks -
Category
Documents
-
view
244 -
download
1
Transcript of Non-seed vascular Plants Divisions of non-seed vascular plants Psilophyta – whisk ferns ...
Non-seed vascular PlantsNon-seed vascular Plants
Divisions of non-seed vascular Divisions of non-seed vascular plantsplants
Psilophyta – whisk fernsPsilophyta – whisk fernsLycophyta - club mossesLycophyta - club mossesArthrophyta - horse tailsArthrophyta - horse tailsPterophyta - fernsPterophyta - ferns
Non-seed vascular plantsNon-seed vascular plants
The sporophyte generation is dominant
Antheridia - structure that produces sperm
Archegonia – structure that produces eggs
Psilophyta – Whisk FernsPsilophyta – Whisk Ferns
•Thought to be the first of the vascular plants•Only vascular plants without leaves or roots•Found in tropical and sub-tropical climates•Very little economic importance – a few uses in Hawaii
Lycophyta – Club MossesLycophyta – Club Mosses
Leafy stems resemble moss gametophyte
Reproductive structure resembles a club
All have roots, stems, and small leaflike structures
A single vein of vascular tissue in each leaf-like structure
Arthrophyta - HorsetailsArthrophyta - Horsetails Only about 15 species
Contain silica and were once used to scour cooking utensils
Found in marshes, shallow ponds, stream banks and other damp soils
Stems are ribbed, jointed and hollow
Spores are produced at the tip of the stems.
Pterophyta - FernsPterophyta - Ferns
More dominant than club mosses and horsetails
Can be found in many places
Some species become dormant when water is scarce, and resume growth and reproduction when water is available
Fern structuresFern structuresRhizome is a thick underground
stem. Leaves are called frondsSpores are produced in sporangia
(sorus, sori)Ferns are the first vascular plants
to evolve leaves with branched vascular tissue
Origins of non-seed vascular plantsOrigins of non-seed vascular plants
• Vascular plants could live on land and grow much larger.
• First appeared during the Devonian Period.
• Tree sized non-seed vascular plants dominated during the Carboniferous period – these plants (the lycophytes) became today’s coal and oil deposits.