Plants III: Seed Plant Reproduction

Gymnosperms: Non-flowering Seed Plants


Phylum: Conifers "cone bearers" are the most abundant form of gymnosperms.

Dominant Phase: diploid (2n) sporophyte

Seed dispersal: Anemochory (wind dispersed)

Special Features: Vascular,  "naked" seeds (the ovules are not enclosed within an ovary), pollen tube

Angiosperms: Non-Flowering Seed Plants
Phylum: Anthophytes or "flowering plants"; the most diverse of all the land plants.

Dominant Phase: diploid (2n) sporophyte

Seed dispersal:
 * Autochory (self dispersed)
 * Anemochory (wind dispersed)
 * Hydrochory (water dispersed)
 * Zoochory (animal dispersed)

Special Features: Double fertilization, endosperm (3n), fruit, ovules enclosed within an ovary