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GLOSSARY. 



Paleaceotts; chaffy ; of a chaffy texture, 

 or furnished with chaff-like scales. 



Palmate; hand-shaped; deeply divided, 

 with the segments nearly equal and 

 spreading like fingers on the open hand. 



Palnuftely veined, or cleft, having the 

 veins or segments divergent, like the 

 spreading fingers of an open hand. 



Panduriform; fiddle-shaped ; oblong, with 

 the sides contracted, like a violin. 



Panicle. A loose irregular compound ra- 

 ceme, in which the peduncles are un- 

 equally elongated and variously and ir- 

 regularly subdivided ; as in Oats, &c. 



Panicled, or paniculate; disposed in the 

 form of a panicle. 



Papilionaceous corolla. Butterfly-shaped; 

 when complete, consisting of 5 petals, 

 the upper one (mostly largest) called the 

 vexiUum. or banner, -the 2 lateral ones 

 termed the alae or wings, the 2 lower 

 ones more or less cohering by their lower 

 margins, and from their form, denomina- 

 ted the keel. 



Papillate, or papillose; having the surface 

 covered with fleshy dots, or points, like 

 minute teats. 



Pappus. The crown of the fruit, being 

 the segments, or free portion of an adhe- 

 rent calyx, in the COMPOSITE, and some 

 other plants, usually hairy-like or plu- 

 mose, sometimes in the form of minute 

 chaff or scales. 



Parasite. A 

 sustenance 

 der, Mistletoe, &c. 



Parasitic; being or relating to, a Parasite. 



Parenchyma. The soft "spongy cellular 

 tissue (often green), which forms the 

 pith of stems, the pulp of leaves and 

 young fruit, and fills the interstices of 

 woody or vascular fibres. 



Paries (plural, pariete*). The outside 

 wall, or enclosing shell, which circum- 

 scribes the cavity of a pericarp. 



Parietal; aftixed to, or belonging to, the 

 paries or outer wall of the seed-cell of a 

 pericarp. 



Parietal placentae. "When the placentae 

 are borne upon the wall", instead of the 

 axis, of the ovary or pericarp. 



Par-ted; divided deeply, almost to the 

 base. 



Partial; a term applied to eonstituentpor- 

 tions of a compound whole. 



Partition. See Dissepiment. 



Patelvform ; in the form of little plates 

 or dishes. 



Pectinate; finely, regularly and deeply 

 cleft, so as to resemble the teeth of a 

 comb. 



Pedate leaf. Like a bird's foot ; divided 

 nearly to the petiole in narrow segments, 

 with the lateral ones diverging. 



Pedicel. A partial peduncle ; the ultimate 

 branch or division (next to the flower, or 

 fruit), in a compound inflorescence. 



L plant growing on, or deriving 

 from, another plant; as Dod 



Pedicellate- having, or being supported 

 on a pedicel. 



Peduncle; a simple flower stem ; also the 

 common foot stalk of a compound inflo- 

 resence. 



Pedunculate; having a peduncle; not sessile. 



Pellucid; transparent; pervious to light. 



Pellucid-punctate; having punctures 

 which permit light to pass through. 



Peltate; like a shield; having the footstalk 

 affixed to the under surface, and not to 

 the margin. 



Pencil-form; resembling a painter's pen- 

 cil or little brush. 



Pendulous; hanging down ; attached at 

 one end, and swinging loosely. 



Pendulous ovules or seeds ; when their di- 

 rection is downwards. 



Penicittate; tipped or tufted with hairs, 

 like a painter's pencil. 



Penni-nerved leaf. Having the lateral 

 nerves pinnately arranged, or feather- 

 like. See feather-veined. 



Pentagonal; having 5 angles or corners. 



Pentagynous; having 5 pistils. 



Pentamerous; composed of 5 parts. 



Pentdndrous; having 5 stamens. 



Pentapetalous; having 5 petals. 



Penultimate; next to the last; the one 

 next to the terminal one. 



Pepo; an indehiscent, fleshy or internally 

 pulpy fruit, usually composed of 3 car- 

 pels invested by the calyx tube, and with 

 a firm rind; as the Melon, &c. 



Percurrent; extending or running the 

 whole way through. 



Perennial; living more than two years, 

 and for an indefinite period. 



Perfect flower ; having both stamen and 

 pistil (1 or more of each), and producing 

 fruit, 



Pfrfoliate; having the stem apparently 

 pierced through the leaf. 



Perianth; a term for the envelopes of a 

 flower, where the calyx and corolla are 

 not clearly distinguishable. 



Pericarp; the seed vessel, or fruit; the 

 ovary in a mature state. 



Perigonium; a name for the envelope of 

 the flower, said to be dvul-le when there 

 is both calyx and corolla, but often used 

 synonymously with Perianth, which sco. 



Pei-igynium; the sac (formed by the union 

 of 2 bractlets) which encloses the ovary 

 of the Cariceft. 



Per'igynmis petals and stamens. Inserted 

 on the calyx, or rather adhering to the 

 inner surface of the <alyx tube, and 

 thus surrounding the pistils. 



Periphcrical; fixed or coiled round the 

 circumference, or periphery. 



Perisperm; a deposit in many seeds, affix- 

 ed to, or surrounding, the embryo sy- 

 nonymous with albumen which see. 



Peristome; the circle of teeth or bristle- 

 like processes which surround the orifice 

 of the Theca or capsule of the Mosses, 



