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REPRODUCTION
Scales
Male cones produce male gametophytes called pollen grain
Female cones (seed cone) produce female gametophytes called ovules (eggs)
Embryo – same idea as zygote (egg+sperm)
Conifer Reproduction
Unfertilized ovule
seed coat
Egg(n)
Female gametophyte
(n)
In this example we are using a pine cone
Male gametophyte(pollen grain)
(n)
Femalegametophyte (n)
Dischargedsperm nucleus (n)
Micropyle
Fertilization initiates the transformation of the ovule into a seed
Conifer Reproduction
Seed coat
Food supply
Embryo (2n)Inside the seed
(new sporophyte)
Compared to a single-celled spore,
a seed is much more resistant and
complex
Conifer Reproduction