Answer:
conifers, cycads, ginkgoes, Gnetophyte.
Explanation:
Gymnosperm (naked seeds). These type of plants don´t produce fruits nor flowers, the seeds are not contained within an ovary or fruit. The seeds are exposed on the surface of the leave-like structures named bracts, bracts are modified leafs or scales. The seeds of these type of plants are directly fertilized by pollination since they are open to the air.
Some examples are:
Conifers (cedars, douglas first, cypresses, etc), are distributed in most parts of the world, especially in cold areas. They are specially abundant in the boreal forest of the northern atmosphere.
Cycads (genus Cycas, genus Bowenia, genius Dioon, etc) are natives of warm regions the Easter and Western hemisphere. They are well distributed in Africa, Australia, South America. They are prominent different species are found in Central America.
Ginkgo biloba (ginkgo) Is native from China.
Gnetophyte (Ephedra, Gnetum, Welwitschia mirabilis, etc) They are found in dry and cool regions in both hemispheres, western and eastern.
Ephedra is distributed in desert areas in the southwestern United States, and some parts in Mexico and South America.
Welwitschia mirabilis, is found in Namib desert of southwestern Africa.
