GLOSSARY. 



427 



Persistent; not falling oflf; remaining be 

 yond the time when similar organs usu- 

 ally fall off. 



Personate corolla. Masked; having the 

 throat closed by a prominent palate, as in 

 Linaria. 



Petid. The (usually) delicate colored flow- 

 er leaf. In a flower of one petal (or unit 

 ed petals), the corolla and petal are the 

 same; in a flower of more than one petal 

 the corolla is the whole and the petals are 

 the parts. 



Petaloid: petal-like ; delicate and colored, 



or expanded, like a petal. 

 Petiolur; seated on, or belonging to, the 



petiole. 



PMoliite: having, or being supp'orted on, a 



petiole ; not sessile. 

 Petiole. The steai or foot-stalk of a leaf. 

 Peti'ilulate; having a partial or subdivided 



petiole. 



Petiolale. A little or partial petiole ; the 

 foot stalk of a leaflet. 



Pk Lnognmous, or phanerogamous; hav- 

 ing visible genuine stamens or pistils; 

 bearing true flowers. 



PhijKixUura. The imitation, analogue, or 

 substitute of a leaf, — usually the dilated 

 foliaceous petiole of an abortive com- 

 pound leaf. 



Pilose; haii-y: composetl of, or clothed 

 with, disdnct straightish hairs. 



Pinii i\ Thy paired oi;' opposite leaflets of 

 a pinnate leaf. ^' 



Pinn<tti- leaf; havirjg distinct articulated 

 leatiets in pairs, 6ji opposite sides of a 

 simple pL-tiole. "l^ 



Pinniitiri'l ov ivc,r\<\. Cleft in a pin 

 natc manner, but the segments united or 

 contlurnt at base. 



Pin ti:'itin<ll :i: in a [linnatifid manner. 



PiiLH iti'i -id; piiinately dissected or divid- 

 ed, — but the segments not articulated 

 with the petiole. ~ 



Pinnalf-s. The leaflets or subdivisions of 

 a bi tri- or multi-pinnate leaf, or frond. 



Pistil. The central organ of a fertile flower, 

 — consisting usually of ovary, st ,le, and 

 stigraa : sometimes the style is wanting, 

 — or, in other words, the stigma is ses- 

 sile. 



Pistillate flowers. Those which have 

 pistils, but not stamens. 



Pistil lifer ous; bearing pistils. 



Pittc'l: having' small shallow depressions. 



PLv;'nta (phii-al. pLicfnt£). That part of 

 a pericarp to which tlie seeds are attach- 

 ed; the line, or ridge projecting in the 

 eas'ity of the ovary, which bears the 

 ovules. 



Placental; pertaining to the placenta. 

 Placeii'iferous; bearing the placenta. 

 Plane: flat, and with an even surface. 

 Plano-convex; flat on one side and con 



vex on the other. 

 Plicate; plaited; folded or crimped, like a 



fan, or ruffle. 



Plumose; feather-like. A pappus is plu- 

 mose, when each hair has other hairs 

 arranged on opposite sides of it, — as in 

 Cirsium. 



Pod. A dry seed-vessel, narrow and moro 

 or less elongated, and usually of 2 valves. 

 The term is often ai)plied indiscriminate!}'- 

 to both Legumes and Siliques. 



Pollen ; the fertilizing powder contained 

 in the anthers. 



Pollen-mas-ses, or PolUnia. The waxy 

 masses of pollen, in the Asclepias and 

 Orchis families. 



Poly, in composition ; many. 



Polyadelphous; having the filaments unit- 

 ed In 3 or more parcels. 



Polydndrous; having more than ten hypo- 

 gynous stamens. 



Polycotyledonous ; having many seed- 

 leaves. 



Polygamo-dixcious, or dioicous ; having 

 perfect and imperfect (or fertile and 

 sterile) flowers on distinct plants. 



Polygamous; having some flowers perfect, 

 and others either staminate, pistillate, or 

 neuter. 



Polygynous; when the pistils are nume- 

 rous or indefinite. 



Polymorphous; variable; assuming, or apt 

 to assume, many different forms. 



Polypetalaus; having many distinct petals, 

 — or, at least, more than one. 



Polysepalous: having many distinct sepals, 

 — or more than one. 



Pome. An apple; a fleshy fruit formed of 

 several cartilaginous or bony carpels, 

 imbedded in pulp and invested by the 

 tube of the adherent calyx. 



Pores; small holes, or tubular openings. 



Porous; full of holes, cells, or tubular 

 openings. 



Prumorse; end-bitten ; ending blunt, as if 

 bitten off. 



P/-ecoc'idM« flowers ; appearing before the 

 leaves. 



Prickle. A sharp process arising from the 

 bark, only, — and not originating in the 

 wood. 



Primary; first in a series in order of time, 

 or in importance, — opposed to secondary. 



Primordial; first in Order; usually ap- 

 plied to the first genuine leaves, — or 

 those which are next above the cotyle- 

 dons or seminal leaves. 



Prismatic ; like a prism ; having several 

 angles and intermediate flat foces. 



Process. A protuberance, eminence, or 

 projecting part. 



Procumhent; lying on the ground, with- 

 out putting forth roots. 



Produced; extended, or lengthened out. 



Prol'fero^is; producing its like in an un- 

 usual way, — as lateral bulbs ; or putting 

 forth a youni and unusual accessory 

 growth, from the centre of an umbel, 

 flower, &c. 



Prostrate ; lying flat, or close on the ground 



