DENDROLOGY

Detailed explanation-1: –Female cones are premature seed cones which when fertilized by pollen cells get converted into seeds. Female cones are found in the upper part of the branches. In female cones, the megasporophylls are present on the bracts. Here, the female cones are sticky for pollen grains to attach.

Detailed explanation-2: -Cone-bearing plants have two types of cones: female cones and male cones. Reproduction begins when one of the pollen grains from inside a pollen sac on the male cone floats through the air to the scale of a female cone. A pollen tube then grows from the pollen grain toward the female ovule.

Detailed explanation-3: -The woody cone is the female cone, which produces seeds. The male cone, which produces pollen, is usually herbaceous and much less conspicuous even at full maturity.

Detailed explanation-4: -Upon landing on the female cone, the tube cell of the pollen forms the pollen tube, through which the generative cell migrates towards the female gametophyte through the micropyle. It takes approximately one year for the pollen tube to grow and migrate towards the female gametophyte.