GLOSSARY. 
Ill 
Petal. A division of the corolla. 
Petaloid. Colored, and resembling a petal. 
Petiolate. Having a petiole. 
Petiole. The footstalk of a leaf. 
Phaenogamous. Having flowers with stamens and pistils, and producing 
seeds. 
Phyllodium. A somewhat dilate petiole, having the form of and serving 
as a leaf-blade. 
Pilose. Soft-hairy. 
Pinna (pi. pinnae). One of the primary divisions of a pinnate or com- 
poundly pinnate frond or leaf. 
Pinnate (leaf). Compound, with the leaflets arranged on each side of a 
common petiole. 
Pinnatifid. Pinnately cleft. 
Pinnule. A secondary pinna; one of the pinnately disposed divisions of 
a pinna. 
Pistil. The seed -bearing organs of the flower, consisting of the ovary, 
stigma and style when present. 
Pistillate. Provided with pistils, and, in its more restricted sense, with- 
out stamens. * 
Pitted. Marked with small depressions or pits. 
Placenta. Any part of the interior of an ovary which bears ovules. 
Plane. Level, with a flat surface. 
Plicate. Folded into plaits, lengthwise. 
Plumose. Having fine hairs on each side, like the plume of a feather, as 
the pappus-bristles of thistles. 
Plumule. The bud or growing point of the embryo. 
Pod. Any dry and dehiscent fruit. 
Pollen. The fecundating grains contained in the anther. 
Polliniferous. Bearing pollen. 
Polliniuin (pi. pollinia). A mass of waxy pollen, or of coherent pollen - 
grains, as in Asclepias and Orchids. 
Polypetalous. Having several petals. 
Pome. A kind of fleshy fruit, of which the apple is the type. 
Porose. Perforated with small holes. 
Posterior. In an axillary flower, on the side nearest to the axis of inflor- 
escence. 
Praemorse. Appearing as if beaten oflf. 
Prickle. A small spine or more or less slender sharp outgrowth from the 
hark or rind. 
Prismatic. Of the shape of a prism, angular with flat sides, and of nearly 
uniform size throughout. 
Procumbent. Lying on the ground. 
Proliferous. Producing offshoots. 
Prostrate. Lying flat on the ground. 
