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Types of Plants. Nonvascular and Vascular Plants. Non-Vascular Plants. Example: Mosses Characteristics: No vascular tissue (system of tubes to transport water & nutrients) 2. Transport via diffusion. Non-Vascular Plants. 3. Structure: a. No “true” roots, stems
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Types of Plants Nonvascular and Vascular Plants
Non-Vascular Plants Example: Mosses Characteristics: • No vascular tissue (system of tubes to transport water & nutrients) 2. Transport via diffusion
Non-Vascular Plants 3. Structure: a. No “true” roots, stems or leaves or cuticle b. Rhizoids = • root-like structures • Absorb H2O & nutrients c. Size – short, small Why?
Non-Vascular Plants 4. Reproduction a. Seedless (have spores) b. Dependent on H2O for sperm to swim to egg c. Alternation of generations - Gametophyte is dominant generation
Moss Life Cycle Moss Gametophyte with single sporophyte
Non-Vascular Plants 5. Habitat -wetlands 6. Ecological Roles : • Habitat for animals • Fuel (peat) • Soil improvement (peat)
Vascular Plants 1. Seedless Vascular Plants Examples: Ferns 2. Seed Plants Examples: trees, flowering plants
What is Vascular Tissue? Definition: system of tubes for transport Location: in “true” roots, stems, leaves Examples: • Xylem – move nutrients & H2O UP from roots 2. Phloem – transports the products of photosynthesis in all directions
Structure True roots, stems & leaves (vascular system) Transport via vascular tissue Frond= blade (leaf) of fern Cuticle on upper surface of frond Have Stomata 1. Seedless Vascular plants : Ferns
Fern Structure • Size : can be taller than mosses Why?
1. Seedless Vascular plants : Ferns c. Reproduction i. Seedless(use spores) ii.Spores in sporangia (spore cases) iii. Sporangia clustered in Sori iv. Dependent on H2O for sperm to swim to egg
Fern Reproduction v. Alternation of generations - Sporophyte is dominant generation
Ferns d. Habitat : moist areas e. Ecological Roles • Habitat • Food (Fiddleheads) • Fertilizer
Vascular Plants 2. Seed Plants 1. Seeds in Cones 2. Seeds in Flowers = Flowering Plants