



GLOSSARY 



XIX 





Panluriform, fiddle-shaped ; oblong with 

 ihe sides contracted like a guitar, or 

 violin. 

 Panicle, a loose irregular compound ra- 

 ceme,— or mode of flowering in which 

 the peduncles aroelongaled.and vari- 

 ouely and irregularly ^sub-divided ;— 

 as in oats, &c. 

 Paniculate, disposed in the form of a 



panicle. 

 Papilionaceous corolla, butterfly-shaped ; 

 when complete, consisting of 5 petals, 

 —the upper one mostly larger than 

 i lie others, called the xexillum or 

 banner,^ the two lateral ones the ala 

 or wings," the two lower ones usually 

 cohering by their lower margins, and, 

 from their form, called the keel. 

 Papillate, or Papillose, having the surface 

 covered with fleshy dots, or points, 

 like little teats. 

 Pappus, the crown of the fruit, — fo Syn- 

 fenesi >usand some other plants; usu- 

 ally ha ! ry, or feathery, sometimes 

 chatty. 

 Par as Hi , growing on, or drawing suste- 

 nance ir >m, another plant ; as Missel- 

 toe, D aider, &c. 

 Parietal placenta, attached to the wall, or 

 enclosing shell, which circumscribes 

 the cavity of a pericarp. 

 Pirtt /, divided deeply, almost to the base. 

 Partial, a term applied to constituent 



parts »f a Compound whole. 

 Partition, see Distejiiaunt. 

 Pectinate* finely and regularly cleft, so as 



to resemble the teeth of a comb. 

 Ptdate leaf, like a birds foot ; divided to 

 the petiole in narrow segments with 

 the lateral ones diverging. 

 Pedicel) a partial peduncle; the ultimate 



divisi >n. next to j.he dftwer or fruit. 

 Pc lit Halt,, Having, or being supported on, 



a pedicel. 

 Peduncle, the common footstalk of the 



tl >wer, or fruit. 

 Pedunculate, having a peduncle; not ses- 

 sile. 

 Pellwid, transparent; pervious to light. 

 PeVucid-punctate* covered with punc- 

 tures which permit the light to pass 

 through. 

 Peltate, like a shield; having the foot- 

 stalk affixed to the under surface, and 

 not to the margin. 

 Pencil-form^ resembling a painter's pen- 

 cil, or brush. 

 Pendulous, banging down. 

 Penicillaie, tipped or tufted with hairs. 



like a pencil. 

 Penninerved, having the la eral nerves 



pinnate lv arranged* 

 Pentagonal, having five angles. or corners 

 Pentagynous, having five pistils. 

 Penlumirou&i having five stamens. 

 Pentangular, five-angled. 

 Pentanrtalnus, having five petals. 

 Penuttitnate, the one next to the terminal 



one. 

 Pepo, a one celled inferior indehi scent 

 and mostly fleshy fruit, with the seed 

 attached to parietal pulpy placentae ; 

 as the Melon, <5tc. 



Perennial, living more than two years. 



Perfect flower, having both stamen and 

 pistil, and producing fruit. 



Perfoliate, having the stem pierced 

 through the leaf. 



Perianth,' a. term now applied to those 

 equivocal floral envelopes which seem 

 to consist of calyx and corolla sol- 

 dered together,— or of calyx only. 



Pericarp, the seedvessel, or fruit; the 

 ovary arrived at maturity. 



Perigynous, adhering to the inner surface 

 of the calyx, and surrounding the 

 pistils* 



Persistent, not falling off; remaining be- 

 yond the time which seems fixed, or 

 intended, for their fall. 



Personate corolla, masked; having the 

 throat closed by a prominent palate. 



Petal, the delicate flower-leaf. In flowers 

 of one petal (or united petals) the co- 

 rolla and petal are the same ; in flow- 

 es of more than one petal, the corolla 

 is the whole, and the petals are the 

 parts. 



Pelaloid, petal like ; delicate and colored 

 or expanded, like a petal. 



P etiolate, having, or supported on, a peti- 

 ole ; not sessile. 



Petiole* the footstalk of a leaf. 



Phanosrumons. having visible stamens 

 and pistils. 



Pilose, hairy : having, or composed of, 

 distinct straighiish hairs. 



Pin/up. the leaflets i f a pinnate leaf. 



Pinnutf, having distinct leaflets on op- 

 posite sides "I a simple petiole. 



Pinnatjfld, cleft in a pinnate manner; 

 but the segments united, or confluent 

 at base. 



Pinnalijuilo, in a plnnatifid manner. 



Pinnatheci, pinnately dissected or divi- 

 ded. 



Pinnules, the leaflets *>n the subdivisions 

 of a bipinnate 1 af, or frond. 



Pistil, the organ which occupies the cen- 

 tre of a fertile flower, — consisting usu- 

 ally, of ovary, style, arid stigma: 

 sometimes the style is wanting, or the 

 stigma sessile. 



Pistillate dowers, those flowers which 

 have pistils, but not stamens. 



Placenta (plural, plart n\ 7r), that part of 

 a pericarp to which the seeds are at- 

 tached. 



Placental, pertaining, to the placenta. 



Plane, flat. 



Plano-conrex x flat on one side and convex 

 on the other. 



Pli ate. 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. 



Pod, a long dry seedvessel, usually of 2 

 valves. The. term is often applied 

 indiscriminately to both Legumes and 



Siliques. 

 Pollen, the fertilizing powder contained 



in the anthers. 

 Poilinia } waxy masses of pollen ; in As* 



clepias, and Gynandrous plants. 



