|
1.
|
Meaning
|
Gymnos – Naked ; Spermae - Seed
|
Angios – Enclosed ; Spermae - Seed
|
|
2.
|
Seeds
|
Naked (Not enclosed inside ovary)
|
Enclosed inside the fruit.
|
|
3.
|
Habitat / Life cycle season
|
Mostly evergreen, perennial, woody trees or shrubs.
|
Annual, biennial or perennial herbs, shrubs or trees, either woody or herbaceous.
|
|
4.
|
Xylem
|
Made up of tracheids only.
|
Consists of tracheids and vessels.
|
|
5.
|
Phloem
|
Consists of sieve cells only.
|
Made up of sieve tubes and companion cells.
|
|
6.
|
Pollination
|
Direct (Pollen grains deposited directly in pollen chamber inside ovule)
|
Indirect (Pollen grains deposited on stigma and not directly inside ovule)
|
|
7.
|
Leaves
|
2 types → Green foliage leaves ; Brown scale leaves
|
One type → Green foliage leaves
|
|
8.
|
Fertilization
|
Single
|
Double
|
|
9.
|
Endosperm
|
Haploid and develops before fertilization
|
Triploid and develops after fertilization
|
|
10.
|
Reproductive organs
|
Male and female cones
|
Flowers
|
|
11.
|
Agency of pollination
|
Wind
|
Birds, water, insects, birds or animals.
|
|
12.
|
Male gametes
|
Motile
|
Non-motile
|
|
13.
|
Seeds
|
Always endospermic
|
Either endospermic or non- endospermic
|
|
14.
|
Cotyledons
|
Two or more
|
One or two
|
|
15.
|
Fruit
|
Not formed
|
Formed after fertilization
|
|
16.
|
Examples
|
Cycas, Pinus, Zamia
|
Sunflower, Hibiscus, Maize
|
