kingdom plantae
TRANSCRIPT
CLASSIFYING PLANTS
• The terrestrial members of the Plant Kingdom are generally divided into 2 groups
1. Non Vascular or Bryophytes- lack specialized tissues for conduction of
water
2. Vascular or Tracheopytes-have specialized tissues for transporting water and
nutrients
CLASSIFYING PLANTS
TWO SYSTEMS OF PLANT CLASSIFICATION
1.Natural System- Based on evolutionary relationships among
plants
2. Artificial System- based mainly on size,water requirement, abilityto manufacture food,
habitat and life span
Bases of Artificial System
1. Size
a. Microscopic
- Those that are not visible to the unaided eye
b. Macroscopic
-those that can be seen with the unaided eye
Bases of Artificial System
2. Water requirement
a. Xerophytes
-live in places with little amount of water
b. Mesophytes
-require a moderate amount
of water
c. Hydrophytes
-live in habitats with
abundant water
Bases of Artificial System
3. Ability to manufacture food
a. Autotrophic
-plants that manufacture their own food
b. Heterotrophic
-plants that depend on other organisms or dead organic matter for food
Bases of Artificial System
4. Habitat
a. Aquatic
- plants live in water
b. Terrestrial
- plants live on land
c. Aerial
- plants live above the
ground
Bases of Artificial System
5. Life Spana. Annual
- live for one growing seasonex. Onions, garlic, patola
b. Biennials- complete their life cyclein 2 yearsex. Okra, parsley,
sunflowerc. Perennials
- live for many years
Bases of Artificial System
6. Habit – refers to body appearance
a. Trees- woody perennial plantswith a single stem or trunk
b. Shrubs – plants with severalmain stems arising at or near the ground
c. Herbs-come with soft stem
d. Vines- climbing plants
NONVASCULAR PLANTS
• They live in moist and damp places since they do not have xylem and phloem to move water from one part to another
• They are usually small in size due to this missing part
• Bryophytes do not have true roots, stem and leaves
NONVASCULAR PLANTS
• They are called thalloid plants
• These plants grow from spores
• Composed of mosses, liverworts and hornworts
• they are regarded as the “amphibians” of the plant world since they need a lot of water even if they are terrestrial in habitat
NONVASCULAR PLANTS
1. LIVERWORTS- liver because of its liver shape
appearance and wort, which means plant or herb
-2 types of gametophyte1. Antheridium- male reproductive that producesthe sperm cell2. Archaegonium- femalereproductive that producesthe egg cell
NONVASCULAR PLANTS
2. HORNWORTS
-they seldom exceed 2 cm in height
- usually found in moist soil and shaded areas or may be attached to trees
NONVASCULAR PLANTS
3. MOSSES- are of 2 types; the gametophyte
and the sporophyte
- they differ from anyother plants becauseof the absence ofmesophyll tissues,
stomata and veins
VASCULAR PLANTS
1. WHISK FERNS
- small plants with fork like branches that look like a broom
- they are considered the
simplest of all living
vascular plants
VASCULAR PLANTS
2. CLUB MOSSES
- they just grow wildly and luxuriantly along the roadside specially during rainy season
- the spores are found on
their tips
VASCULAR PLANTS
3. HORSETAILS
- its stem are rough with silica crystals, Thus, it is ideal for scrubbing pots and dirty kettles
VASCULAR PLANTS
4. FERNS
- the largest group of seedless vascular plants
- they may reach 3 to 5 meters in height
- they have vasculartissues and strongroots
GYMNOSPERMS
• Came from the Greek word ‘gymnos’ meaning naked and ‘sperma’ seed or naked seeds
• They are cone bearing plants
• They grow very well in
temperate region
GYMNOSPERMS
1. Ginkgos- Ginkgo biloba as its popular name
- Large tree with numerous spreading branches
- Leaves are fan shapethat gives off a pungent
odor
GYMNOSPERMS
2. GNETUMS
- believe to be the ancestor of the flowering plants
- have cones that resembles a flower
- smaller than ginkgo. Not
common in the Philippines
GYMNOSPERMS
3. CYCADS-second largest group of gymnosperms
-leaves are compound and composed of several leaf-like parts
-they grow well in tropicalcountries
GYMNOSPERMS
4. CONIFERS
- biggest group of gymnosperms found in most part of the world
- large, tall trees with highly
branched stems
- leaves are usually
long, scaly, and needle-like