y organ.

=Leaflet.= One portion of the blade of a compound leaf.

=Lemma.= One of the bracts in the spikelet of a grass, and described in
the treatment of that family.

=Membranous.= Thin or membrane-like in texture.

=Monoecious.= Bearing stamens and pistils in separate flowers, but on the
same plant.

=Mucronate.= Tipped with a short small abrupt tip.

=Node.= A joint of a stem, at which leaves are borne and branches appear.

=Oblanceolate.= Reversed lanceolate in shape.

=Oblique.= With unequal sides.

=Oblong.= Somewhat rectangular in shape, with parallel sides.

=Oblong-lanceolate.= Intermediate in shape between oblong and lanceolate.

=Oblong-spatulate.= Intermediate in shape between oblong and spatulate.

=Obovate.= Reversed ovate in shape.

=Obtuse.= Blunt-tipped; terminating in an obtuse angle.

=Odd-pinnate.= A compound leaf terminating in a single leaflet.

=Once-compound.= A compound leaf bearing leaflets at the end or along the
sides of the main axis.

=Once-pinnate.= A compound leaf bearing leaflets along the sides of the
axis.

=Open sheath.= A leaf-sheath with separate margins.

=Opposite.= Situated in pairs on opposite sides of the stem or axis.

=Ovary.= The basal, usually swollen portion of the pistil, within which
the seeds are produced.

=Ovate.= Egg-shape in outline.

=Ovate-lanceolate.= Intermediate in shape between ovate and lanceolate;
broadly lanceolate or narrowly ovate.

=Ovate-oblong.= Intermediate in shape between ovate and oblong.

=Ovoid.= Egg-shape.

=Palmate.= With several organs or structures attached at or proceeding
from the same point; applied chiefly to the arrangement of
principal veins in a leaf and of leaflets in a compound leaf.

=Panicle.= A loose, more or less irregular, branching cluster of
pedicelled flowers, usually much longer than thick.

=Parallel-veined.= With the principal veins of the leaf paralleling each
other from the base to the apex, or (rarely) from the mid-rib to
the margin.

=Pedicel.= The stalk of a single flower.

=Parasite.= A plant which grows attached to another and derives its
nourishment from it.

=Peduncle.= The stalk of a flower-cluster, or of a solitary flower.

=Peltate.= Attached to the stalk by the lower surface, instead of the
margin.

=Perennial.= Living through several seasons.

=Perfect.= Bearing stamens and pistils in the same flower.