Glossary - The Pollination Biology of North American Orchids: North of Florida and Mexico - page 187

Column-foot A ventral extension of the column base in some orchids that is
attached to the labellum.
Column-wing Projections on both sides of the column in some orchids thought to
possibly represent sterile anthers.
Competition Activity occurring when two or more individuals belonging to the
same or different species vie with one another for some limited resource.
Connate United to a part or organ of the same kind as one petal to another;
cf. adnate.
Connivent Parts or organs that are convergent and touching but not fused.
Conspecific Two or more organisms belonging to the same species.
Convergence Process involving the independent evolution of a similar character in
two species or the occurrence of a similar character in a set of species that was
not found in their common ancestor, a convergently evolved character.
Corbicula (pl. Corbiculae) A smooth area on each hind tibia of a bee that is edged
with a fringe of stiff hairs and functions in the collection and transport of pollen,
the pollen basket.
Cordate Heart-shaped, indented at the base.
Corm A short, enlarged fleshy base of a stem, usually underground or near the
surface.
Corolla Collective term for all the petals of a flower comprising the inner whorl of
the perianth when a calyx is present.
Cost of reproduction The energy invested in the production of offspring.
Crenulate A margin with very small, rounded teeth, diminutive or crenate.
Crest An elevated line or ridge, usually on some part of a flower.
Crisped (crispate) A margin that is irregular, wavy, or ruffled.
Cross-fertilization Union of an egg with sperm from a different plant following
cross-pollination.
Cross-pollination Transfer of pollen from the anther of one plant to the stigma of
another.
Deception Simulation of non-existent rewards to attract pollinators.
Deciduous Leaves or other plant parts shed naturally prior to winter or the dry
season or at a prescribed developmental stage.
Deflexed Bent or turned sharply downward.
Dehiscence The spontaneous splitting open of certain plant organs (e.g., anthers,
fruits) along prescribed lines to discharge their contents.
Demographic data Data on the dynamic balance of a population especially with
regard to age structure, density, and capacity for expansion of decline.
Denticulate Diminutive of dentate, finely toothed.
Derived A relative term referring to a feature that has evolved from another.
Diploid Possessing two sets of chromosomes in each somatic cell nucleus, indi-
cated as “2n.”
Distal The part of a structure farthest away from the structures point of attachment;
cf. proximal.
DNA (Deoxyribonucleic acid) the stuff of which genes are made and the genetic
code is written.