A structure in orchids and milkweeds containing pollen masses, stalks, and adhesive discs.

The complete pollen delivery unit in certain flowers, including pollinia and their attachments.

The act of transferring pollen to enable fertilization in plants.

Coherent masses of pollen grains, typically found in orchids and some other families.

A mass of pollen grains transferred as a unit during pollination in certain plants.

A single cohesive mass of pollen that is characteristic of orchids and milkweeds.

A prefix meaning many or much.

The part of a seed embryo that develops into the shoot bearing the first true leaves.

Pores or openings in plant tissues that allow gas exchange.

A specialized aerial root used for gas exchange, commonly found in mangroves.