Annona Species Monograph.pdf - Crops for the Future

Glossary
A
abcission - The normal shedding of leaves, flowers or fruits from a plant at a
special separation layer.
abiotic - not living, as opposed to biological.
acute - terminating with a sharp or well defined angle.
actinomorphic - having radially symmetric shape, usually refers to the petals
of a flower.
acuminate - the shape of a tip or base of a leaf or perianth segment where the
part tapers gradually and usually in a concave manner.
adnate - joined to or attached to.
adventitious - describes an organ growing where it is not normally expected.
albumen - Starchy and other nutritive material in a seed, stored as
endosperm inside the embryo sac, or as perisperm in the surrounding nucellar
cells; any deposit of nutritive material accompanying the embryo.
alternate - describes leaves that are not opposite to each other on the axis,
but arranged singly and at different heights.
anatropous - bent over through 180 degrees to lie alongside the stalk.
androecium - all the male reproductive organs of a flower; the stamens. cf.
gynoecium.
angiosperm - a plant producing seed enclosed in an ovary. A flowering
plant.
annual - a plant that completes its life cycle from germination to death
within one year.
anterior - front; on the front side; away from the axis.
anther - the pollen-bearing (terminal) part of the male organs (stamen),
borne at the top of a stalk (filament).
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