Transcript Types of Plants

Types of Plants
Nonvascular
and
Vascular Plants
Non-Vascular Plants
Example: Mosses
Characteristics:
1. 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:
1. Xylem – move nutrients & H2O
UP from roots
2. Phloem – transports the products of
1. Seedless Vascular plants : Ferns
a. Structure
• True roots, stems & leaves
(vascular system)
• Transport via vascular tissue
• Frond = blade (leaf) of fern
• Cuticle on upper surface of frond
• Have Stomata
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
Fern Life Cycle
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