GLOSSARY. 



Parasite; a plant growing on, or deriv 



ing sustenance from, another plant. 

 Parasitic ; being, or relating to, a para 



site. 



Parenchyma ; vegetable pulp. 

 Paries (plural, parities) ; the wall, or in 



closing shell, which circumscribes the 



cavity of a pericarp. 

 Parietal ; fixed to, or belonging to, th< 



paries, or inclosing wall of the seed 



cell. 

 Parietal placentae ; placentae borne upon 



the inclosing shell, or wall of the ovary 



or pericarp, instead of the axis. 

 Parted; divided deeply, almost to the 



base. 



Partial; a term applied to portions of a Perigonial leaves (in Mosses); those sur 



compound whole. 

 Patellaefm-m ; in the form of little plates, 



or dishes. 

 Patellulae ; small orbicular receptacles of 



the Lichens; resembling little dishes, 



also termed spangles. 

 Pectinate; finely, regularly and deeply 



cleft, so as to resemble the teeth of 



comb. 



Pedate leaf; divided nearly to the petiole. 



in narrow segments, with the lateral Peri 



ones diverging; resembling a bird's 



foot. 

 Pedicel ; a partial peduncle ; the ultimate 



branch in a compound inflorescence. 

 Pedicellate; having, or being supported 



on, a pedicel. 

 Peduncle ; a simple flower- or fruit-stalk ; 



also, the common footstalk of a com- 

 pound inflorescence. 

 Pedunculate; having a peduncle; not 



sessile. 



Pellucid ; transparent ; pervious to light. 

 Pellucid-punctate ; having punctures 



which permit light to pass through. 

 Peltae ; little flat receptacles on Lichens, 



resembling targets, or shields. 

 Peltate; like a shield; having the foot- 

 stalk affixed to the under surface, and 



not to the margin. 

 Pencil-form, or pencil-tufted ; resembling 



a painter's pencil, or little brush. 

 Pendulous ; hanging down. 

 Penninerved ; having the lateral nerves 



pinnately arranged. See Feather-veined. 

 Pentagonal ; have 5 angles, or corners. 

 Puntagynous ; having 5 pistils. 

 Pentamerous ; composed of 5 parts. 

 Pentandrous ; 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 



pistil (1 or more of each) . 

 Perfoliate ; 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. 

 Perichaeth, or perichaetium ; the verticil, 



or cluster of bract-like leaves, round 



the base of the seta, or footstalk of the 



capsule, in Mosses, often called peri- 



chaetial leaves. 

 Peridium ; a term applied to the outer 



sac; or envelope of the sporanges, in 



some of the Fungi. 



rounding the antheridia. 



Perigynium (plural, Perigynia) ; the sac 

 which incloses the fruit of theCarices; 

 also, the hypogynous scales, bristles, or 

 hairs, investing the ovary, in many of 

 the Cyperaceae. 



Perigynous stamens and petals ; inserted 

 on the calyx, or rather adhering to 

 the inner surface of the calyx-tube, and 

 thus surrounding the pistils. 



fixed or coiled round the 



carpels invested by the adherent calyx 

 tube, and with a firm rind, as the 

 Melon, &c. 

 Percurrent; extending, or running the 

 whole way through. 



Perennial; living more than 2 years, and Pileus ; the cap- or hat-like receptacle 



for an indefinite period. 

 Perfect flower ; having both stamen and 



circumference. 

 Perixperm ; a synonym of albumen, 



which see. 

 Peristome ; the circle of teeth, or bristle 



like processes, which surround the 



orifice of the theca, or capsule of the 



Mosses. 

 Perithecium ; the proper envelope of the 



fruit (in Lichens), when it is not in- 

 closed in the thallus. 

 Persistent; not falling off; remaining 



beyond the time when similar organs 



usually fall off. 

 Personate corolla,; masked; having the 



throat closed by a prominent palate, 



and resembling the mouth of an 



animal. 

 Pertuse; perforated; pierced with holes, 



as if punched, or bored through. 

 Petaloid; petal-like; delicate and colored, 



or expanded, like a petal. 

 Petals ; the (usually) delicate, colored 



leaves, which compose the corolla. 

 Petiolar; seated on, or belonging to, a 



petiole. 

 Petiolate; supported on, or having, a 



petiole; not sessile. 

 Petiole; the stem or footstalk of a leaf. 

 Petiolulate; having a partial, or sub- 

 divided petiole. 

 PetMule; a little or partial petiole; the 



footstalk of a leaflet. 



pulpy fruit, usually composed of 3 Phaenogamous plants; having visible 



genuine flowers; often written phaner- 

 ogamous. 



Phyllodium; a leaf like expansion: sup- 

 posed, sometimes, to be the dilated 

 petiole of an abortive compound leaf. 



borne on the stipe of a mushroom, 

 as in the Agarics . 



