Sporophytes produce only one kind of spore.
Production of two different kinds of spores.
Develop into female gametophytes.
Develop into male gametophytes.
Embryo is surrounded and protected by gametophyte and sporophyte tissues.
Cluster of sporangiophores.
Gives rise to a gametophyte.
Hygroscopic structures aiding in the dispersal of spores.
Small and simple leaves.
Structures bearing sporangia.
Plants in which seeds are not covered by fruit.
Male and female structures produced on separate individuals.
Bear ovules, which develop into naked seeds.
Gymnosperm strobili (male)
The woody scale of the seed (ovulate) cone.
Forms from the megaspore. Contains archegonia. Is retained within the megasporangium.