Week 3 | Day 2 | BIOA02

Stamen

The male part of a flower, consisting of the anther and filament.

Carpel

The female part of a flower, consisting of the stigma, style, and ovary.

Sepals

Leaf-like structures that protect the flower before it opens, usually green in color.

Petals

Typically colored structures that attract pollinators.

Anther

The part of the stamen that produces pollen, commonly with four pollen sacs.

Stigma

The sticky landing platform for pollen on the carpel.

Style

The tube that connects the stigma with the ovary in the carpel.

Ovary

The part of the carpel that contains the ovules.

Ovule

The structure within the ovary that contains the egg cell.

Whorls

The four main parts of a flower - sepals, petals, stamen, and carpel.

Hermaphroditism

The condition where a flower has both male and female reproductive organs.

Monoecy

The condition where an individual flower has either male or female reproductive organs, but not both.

Dioecy

The condition where an individual plant produces either all female or all male flowers.

Outcrossing

The process of pollination between flowers of different plants.

Selfing

The process of pollination within the same flower or between flowers of the same plant.

Temporal separation

A method of inbreeding avoidance where the female and male phases of a flower develop at different times.

Spatial separation

A method of inbreeding avoidance where flowers are physically separated from each other.

Self-incompatibility

The ability of the carpel to recognize and reject its own pollen.

Spatial reciprocity

A special type of spatial separation where different flowers of the same plant have different reproductive organs.

Primrose production

An example of spatial reciprocity in plant reproduction.