15 results found

Search Results for: pollen grain

Angiosperm

Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More

Pollen Grain

A structure produced by plants containing the male haploid gamete to be used in reproduction. The gamete is covered by... Read More

Seed Plants

There are two main subdivisions of seed plants—the ones without covered seeds, the gymnosperms, and the ones with covered... Read More

Fruits, Flowers, and Seeds

Flowering plants grow in a wide variety of habitats and environments. They can go from germination of a seed to a mature... Read More

Elaioplast

Definition noun, plural: elaioplasts (botany) A leucoplast that stores oil Supplement Plastids are organelles involved in... Read More

Tectum

Definition noun, plural: tectums, tecta A roof-like covering or structure Supplement Tectum is a term used to describe a... Read More

Pollinium

Definition noun, plural: pollinia A mass of coherent pollen grains, as in the flowers of orchids and milkweeds... Read More

Plant

Plant Definition (botany) Any of the eukaryotic organisms of the biological kingdom Plantae, characterized by being... Read More

Pollinator

Pollinator A pollinator is the agent that moves pollen from the male anthers of a flower to the female stigma of a flower to... Read More

Grain

Grain (Science: botany) a fruit characteristic of grasses (such as rice), pollen Grain, a microspore of a seed plant, or the... Read More

Intine

Intine (Science: plant biology) inner layer of the wall of a pollen Grain, resembling a primary cell wall in structure and... Read More

Microspore

Definition noun, plural: microspores (botany) The smaller spore produced by sporophytes and develop into male... Read More

S gene complex

S gene complex (Science: molecular biology) genes coding for molecular components of the pollen stigma recognition system in... Read More

Growth and Plant Hormones

Growth All living organisms begin in the same form: as a single cell. That cell will divide and the resulting cells will... Read More

Porate

porate (Science: botany) Of a pollen grain, with rounded apertures only. Compare:... Read More