Part 69

=Pinna= A division, part, or leaflet of a pinnate leaf.

=Pinnate= With leaflets on both sides of a stalk.

=Pistil= The central part of the flower containing the prospective seed.

=Pistillate= Bearing pistils but no stamens.

=Pith= The soft, central part of a twig.

=Pod= Any dry and dehiscent fruit.

=Pollen= The dust-like substance found in the anthers of a flower.

=Polygamous= With both perfect and imperfect, staminate or pistillate, flowers.

Pome A fleshy fruit with a core, such as the apple.

=Prickle= A sharp-pointed, needle-like outgrowth.

=Psuedo-= A prefix meaning false, not true.

Pubescent Hairy.

=Pungent= Ending in a sharp point; acrid.

=Pyramidal= Shaped like a pyramid with the broadest part near the base.

=Raceme= A simple inflorescence of flowers borne on pedicels of equal length and arranged on a common, elongated axis.

=Reflexed= Abruptly turned backward or downward.

=Regular= Said of flowers which are uniform in shape or structure.

=Rugose= Wrinkled.

=Saccharine= Pertaining to or having the qualities of sugar.

=Samara= An indehiscent winged fruit.

=Sapwood= The recently formed, usually light wood, lying outside of the heartwood.

=Scales= The small, modified leaves which protect the growing-point of a bud or the part of a cone which bears the seeds. The small flakes into which the outer bark of a tree divides.

=Scurfy= Covered with small bran-like scales.

=Sepal= One of the parts of the calyx.

=Serrate= Having sharp teeth pointing forward.

=Sessile= Seated; without a stalk.

=Sheath= A tubular envelope or covering.

=Shrub= A low woody growth which usually branches near the base.