HORTICULTURE

Detailed explanation-1: -Most gymnosperms produce seeds in structures called cones or strobili (singular strobilus; Figure 8.1. 2). Cones evolved from modified leaves, and they can either be male cones that produce pollen, or female cones that produce ovules.

Detailed explanation-2: -All gymnosperms are heterosporous and have two types of cones: male, which are smaller and female, which tend to be larger.

Detailed explanation-3: -Gymnosperm seeds are usually formed in unisexual cones, known as strobili, and the plants lack fruits and flowers. Both groups use pollen to facilitate fertilization, though angiosperms have an incredible diversity of pollination strategies that are not found among the gymnosperms.

Detailed explanation-4: -Conifers are cone-bearing seed plants which develop their seeds inside cones. e.g. Pine, Junipers.