A plant genus of the family DRYOPTERIDACEAE. Members contain aspidin and filicic acid.

The wood fern plant family of the order Polypodiales, class Filicopsida, division Pteridophyta.

Deoxyribonucleic acid that makes up the genetic material of CHLOROPLASTS.

Geographic variety, population, or race, within a species, that is genetically adapted to a particular habitat. An ecotype typically exhibits phenotypic differences but is capable of interbreeding with other ecotypes.

The various physical methods which include wind, insects, animals, tension, and water, by which a plant scatters its seeds away from the parent plant.

The reproductive elements of lower organisms, such as BACTERIA; FUNGI; and cryptogamic plants.

Self-replicating cytoplasmic organelles of plant and algal cells that contain pigments and may synthesize and accumulate various substances. PLASTID GENOMES are used in phylogenetic studies.

A copper-containing plant protein that is a fundamental link in the electron transport chain of green plants during the photosynthetic conversion of light energy by photophosphorylation into the potential energy of chemical bonds.