=Fayal=, _n._ One of the Azores Islands, west of Portugal.
=Ferns=, _n._ A division of flowerless plants.
=Fertilize=, _v._ L. _fertilis_, fruitful; to make fruitful or
productive, in the flower, by introducing the pollen to the ovule,
enabling them in union to become a seed.
=Filament=, _n._ L. _filum_, a thread; the stem of an anther, often
thread-like in form, though it varies greatly; any thread-like part.
=Flower=, _n._ L. _flos_, a flower; the part of a plant consisting of
pistil, stamens, corolla, and calyx. Sometimes the corolla is
wanting; sometimes both calyx and corolla are wanting. Since pistils
and stamens are the most important part of the flower, an organ
containing them only is called a flower. Sometimes a flower consists
of only stamens or only pistils, as in some kinds of maple.
=Force pump=, _n._ A pump in which a liquid is moved by pressure
behind instead of being lifted, as is the case in the ordinary pump.
=Fossil=, _n._ Animal or vegetable forms which have been long buried
in the earth and so preserved; the _forms_ or traces of animal or
vegetable structures which have been preserved in rock.
=Fruit=, _n._ The matured ovary and all it contains or is incorporated
with. Sometimes the calyx forms part of the fruit, as in the apple.