2. CLASSIFICATION OF PLANTS
INTO GROUPS
Plants can be classified into several groups. Plants can
be grouped according to the structure of their roots,
stem, leaves, flower & seeds. Plants are classified in
two major groups : non-vascular & vascular plants.
3. DESCRIPTION OF NON-VASCULAR &
VASCULAR PLANTS
•Lacks vascular tissues.
NON- •Does not have vascular bundles for
VASCULARPLANTS transporting food &water.
•They are called bryophytes.
•Have vascular tissues.
•Does have vascular bundles for
VASCULAR PLANTS conducting food &water.
•They are called tracheophytes.
4. Non-vascular plants have 3 kinds.
They are mosses, liverworts,&
hornworts.
mosses liverworts hornworts
5. DESCRIPTION OF MOSSES, LIVERWORTS
& HORNWORTS
Mosses are Liverworts are so Hornworts have a
bryophytes that called because their simple &
grow alone on the thallus looks like the undifferentiated
ground. They are liver’s lobes. Unlike thallus & a complex
erect w/ short leafy mosses, liverworts spore-bearing
stems & are lie horizontally on structure.
anchored to the the ground.
ground by rhizoids.
6. Vascular plants have 2 kinds. They are
spore-bearing & seed-bearing plants.
spore-bearing plants seed-bearing plants
7. DESCRIPTION OF SEED-BEARING &
SPORE-BEARING
• It constitutes the other group of
Seed-bearing tracheophytes. About 95% of
tracheophytes are seed-bearing.
plants
• Their reproductive structures
Spore-bearing are called spores located in
specialized structures called
plants sporangia.
8. Seed-bearing plants are divided into two
distinct groups of tracheophytes, the
gymnosperms & the angiosperms.
SEED-
BEARING
GYNOSPERMS ANGIOSPERMS
9. DESCRIPTION OF GYMNOSPERMS
• They produce naked seeds.
• Their seeds are not enclosed in a ovary.
• Their seeds are enclosed in woody
structures called cones or strobili.
• They are called conifers because they
GYMNOSPERMS produce cones.
• In most gymnosperm, there is a dominant
main stem w/ conspicuously smaller
branches.
• Their leaves are covered with thick layer
of cuticle.
11. DESCRIPTION OF ANGIOSPERMS
• Angiosperm are the flowering plants.
• They produce seeds that are enclosed in a
ovary.
• Fruit trees, bushes & vegetables belong to
ANGIOSPERMS this group.
13. Angiosperms are divided into two
subclasses – the dicotyledons &
monocotyledons.
ANGIOSPERM
DICOT MONOCOT
14. The table summarizes the difference between
monocot & dicot.
Bases of Comparison Monocot Dicot
1. Arrangement of veins in the Parallel Netted
leaves
2. No. of seed leaf in the seeds 1 2
3. Presence of cambium tissue Absent Present
4. Stem growth No secondary growth With secondary
growth
5. Flower parts In 2’s or 3’s or multiples of In 4’s or 5’s or
these numbers multiples of these
numbers
6. Root system Fibrous Taproot
7. Examples Coconut, grass, rice, corn, Gumamela, guava,
orchid, banana and rose, santan, ipil-ipil,
bamboo San Francisco and
15. THE FLOWCHART SUMMARIZES THE
CLASSIFICATION OF PLANTS
PLANTS
NON-VASCULAR PLANTS VASCULAR PLANTS
MOSSES HORNWORTS SEED-BEARING PLANTS SPORE-BEARING PLANTS
LIVERWORTS
DICOT MONOCOT
16. THE OTHER WAY OF GROUPING SEED
PLANTS IS ACCORDING TO THE LENGTH OF THEIR GROWING
SEASONS
PLANTS
ANNUALS BIENNIALS
PERENNIALS
17. DESCRIPTION OF ANNUALS
ANNUALS
These are plants that grow and produce flowers,
fruits and seeds in one season and then die.
Most vegetable crops are annuals
19. DESCRIPTION OF BIENNIALS
BIENNIALS
These are plants that take two years to
complete their cycle. The plants grow and
develop in a year’s time.
For its 2nd year, they produce flowers, fruits and
seeds and afterwards die.
21. DESCRIPTION OF PERENNIALS
PERENNIALS
These plants lived for more than 2 years. Their
life cycle – growth of flower, fruit and seed
bearing activities continuously goes on.
Most of trees and many grasses belong to this
group.