426 



GLOSSARY. 



Paleaceous: chalFy ; of s oliaffy texture, — 

 or furnished with cliaff-Iike scales. 



Palmate; hand-shaped; deeply divided, 

 •n-ith the segments nearly equal and 

 spreading like fingers on the open hand. 



Palmately veined, or cleft,— having the 

 veins or segments divergent, like the 

 spreading fingers of an open hand. 



Panduriform: tiddle-shaped ; oblong, Avith 

 the sides contracted, like a violin. 



Panicle. A loose irregular compound ra- 

 ceme, — in Avhich 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 

 vexillum or banner,— the 2 lateral ones 

 termed the alae or -vvlngs, — the 2 lower 

 ones more or less cohering by their lower 

 margins, and from their form, denomina- 

 ted the keel. 



Papillate, ov p)o.pjMlose: 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 Composit.t', and some 

 other plants,— usually hairy-like or plu- 

 mose, — sometimes in the form of minute 

 chaff or scales. 



Parasite. A ])lant gi-owing on, or deriving 

 sustenance from, anothej" plant ; as Dod 

 der, Mistletoe, &c. 



Parasitic; being or relating to, a Parasite. 



Parmchyma. "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, parietef^). The outside 

 wall, or enclosing shell, which circmn- 

 scribes the cavity of a pericarp. 



Parietal; aflixed to, or belonging to, the 

 paries or outer wall of the seed-cell of a 

 pericarp. 



Parietal placentas. When ihe placentaj 

 are borne upon the icaJl •, instead of the 

 axis, of the ovary or pericarp. 



Parted; divided deeply, almost to the 

 base. 



Partial; a term applied to constituent-por- 

 tions of a compound whole. 



Partition. See Dissepiment.^ 



Patelrform; 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 compouad infloreeeence. 



Pedicellate; having, or being supported 



on a pedicel. 

 Peduncle; a simple floAver stem ; also the 



common foot stalk of a compound infio- 



resence. 



Pedunculate; havinga 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 

 aflixed 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. 



Pend^ilo^hs ovules or seeds ; when their di- 

 rection is downwards. 



Penicillate; tipped or tufted with hair?, 

 like a painter's pencil. 



Penni-nerted leaf. Having the lateral 

 nerves pinnately arranged, or feather- 

 like. See Feather-reined. 



Pentagoncd; having 5 angles or corners. 



Pentugynous; having 5 pistils. 



Pentamerous; composed of 5 parts. 



Pentdndrous; having 5 stamens. 



Pentapeialous; having 5 petals. 



Penultimate; next to the last; the one 

 next to the terminal one. 



Pepo; an indehiscont, fleshy or internally 

 pulpy fruit, usually composed of 3 oar- 

 pels invested by the calyx tube, and -vvith 

 a firm rind ; as the Melon, &c. 



Perctirrent; extending or running the 

 whole way through. 



Pe/vn?2^(7Z,-" living "more than tM'o years, 

 and for an indefinite period. 



Per/^f^ flower ; having both stamen and 

 pistil (1 or more of each), and producing 

 fruit. 



Pirfoliate; 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 doulle when there 

 is both calyx and corolla, but often used 

 synonymously with Pei iavth. which see. 



Perigynium; the sac (formed by the union 

 of 2 bractlets) which encloses the ovary 

 of the Carices. 



Per'igynovs petals and stamens. Inserted 

 on the calyx, — or rather adhering to the 

 inner surface of the calyx tube, — and 

 thus surrounding the pistils. 



Peripjlierical; fixed or coiled round the 

 circumference, or periphery. 



Perisjjerm; a deposit in many seeds, affix- 

 ed to, or surrounding, the embryo — sy- 

 nonymous with uVmmen — which see. 



Peristome; the circle of teeth or bristle- 

 like processes which surround the orifico 

 of the Theca or capsule of the Mouses. 



