APPENDIX. ix 
Pappus. The hairs, bristles or scales crowning the 
akenes in Composite. 
Parietal. Relating to or upon the wall of a cavity. 
Paripinnate. Evenly pinnate; without the odd terminal 
leaflet. 
Pedicel. The footstalk of a flower. 
Peduncle. A general or primary flower-stalk. 
Peltate. Shield-shaped. 
Pendulous. Drooping, or hanging nearly inverted. 
Penicillate. Resembling a brush of fine hairs. 
Pentandria. Having five stamens. 
Pentagynia. Having five pistils. 
Perianth. The floral envelopes—i. e., the calyx and cor- 
olla, so far as present. 
Pericarp. The seed-vessel or ripened ovary. 
Perigonium. A simple floral envelope. 
Perigynium. The sac-like envelope, or the bristles or 
scales which in the Cyperaces represent the perianth. 
Personate. Closed, as in Labiate flowers with prominent 
palates. 
Petal. One of the parts of a polypetalous or nearly divided 
corolla. 
Petiole. The footstalk of a leaf. 
Petaloid. Petal-like. 
Phalanges. Stamens united in sets by their filaments. 
Phanerogame. Plants which fructify by means of sta- 
mens and pistils. 
-phyllous. Leafy, leaved. 
Pilose. Hairy, with soft distinct hairs. 
Pinne. Primary divisions of a compoundly pinnate leaf. 
Pinnatifid. Pinnately cleft into opposite nearly equal 
segments. 
Pinnule. A secondary pinna—i. e., one of the pinnate 
divisions of a pinna. 
Pistil, The female organ of a phanerogam consisting of 
the ovary with its styles and stigmas. 
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