198 



ESTDEX AND TOCABULAllT. 



differs from punctate, which has dots resem- 

 bling holes. 

 Peri. Around. 

 Perianth^ G8. 

 Pericarp,) 86, 87. 

 Perid'ium. The round membraneous case which 



.contains the seeds of some mushrooms. 

 Pcrig'ynous. (from peri,, around, and gynia, 



pistil.) 



corolla, 83. 



Periph'erij, The outer edge of the frond of a 



lichen ; the circumference of a circle. 

 Per'isperm. (From pcri.^ around, and spcrma, 



seed.) Around the seed. Skin of tlie seed. 

 Peristo'mium. The fringe or teeth around the 



mouth of the capsule of mosses, under the lid. 

 Permanent. Any part of a plant is said to be 



permanent when it remains longer than is 



usual for similar pai'ts in most plants. 

 Persist'ent, 58. 



Personate. (From persona, a mask.) 72, 236, 238. 

 Perspiration of plants, 121. 

 Pet'al, 12, 71. 

 Pet'io/e. 41, b. 

 Phciiog amous, 20. 

 Philadci'phcB, 400. 

 Phiios'ophers of Greece, 331. 

 Phie'iim pratense, 175. 

 Phiil'la. The Greek word for leaves. 

 Pliyllotax'is, 49. 



Physiol' ogy. Derived from the Greek, a knowl- 

 edge of nature. 

 Physiol og'ical Botany, 10. 

 Puytoiacca'ce.'e, 502. 

 Phytol'ogy. The science which treats of the 



organization of plants. 

 Phy'ton. (From the Greek phuton, a plant.) A 



plantlet first formed in the seed, 52. 

 Pig-weed, 189. 

 Pileole, 90, Fig. 121. 

 Pi'lcus. The hat of a fungus. 

 Pil'lar. Soe Columella and Column. 

 Pi'lose. Hairy, with distinct, straightish hairs. 

 Pt'ius. A Lair, 290. 

 Pine, 54, i; 279. 



apple, 97, 



Pink, 14, 220, Fig. 178. 



Pinna. (From pinna, a wing.) Segments of a 



pinnate leaf. 

 Pinnate, 55, Fig. 59. 

 Pinnat'ijid. Cteft in a pinnate manner, but the 



segments aro united or confluent at the base, 



54,.;. 

 Pipkra'ce^. 513. 

 Pis' til, 80, HI, Fig. 87. 

 Pis'tils. Transformed leaves, 80. 

 Pistillate. Having pistils, but no stamens. 

 Pistillid'ia. 



Pitch' er plant, 54, t ; 315. 

 Pith, 130. 



Placenta, 80, 80, « ; 89. 

 Plane. Flat, with an even surface. 

 Pi,a.ntagina'cejE, 480. 

 Plan' tain, 178. 

 Plants^ affected bj the state of the atmosphere, 



306, 308. 



, by the sun, 307. 



, first account of, 330. 



differ from animals, 385. 



confined to particular places, 317. 



• peculiar to their native regions, 318. 



of cold climates, 314, 317, 318. 



of warm countries, 314, 317. 



of the torrid zone, 319. 



Pli'cate. Folded Uke a fan, Fig. 54, c. 

 Pliny, 335. 



rLUMBAQINA'cK«, 481. 



Plu'mose. Feather-like. 

 Plu'mulaj or Plume, 101. 



Plu'rimus. Very many. 



Poa, 175. 



Pod, 91. 



Pode'tia. The pedicels which support the frond 



of a lichen. 

 Pod'osperm. (From podos, a part, and sperma, 



seed.) Pedicel of the seed. The same as the 



funicle. 

 Podostema'ce^, 518. 

 Poi'son hemlock, 190. 

 Poi'sovous plants, 26, 190, 229. 

 Poke-woed, 223. 

 Polemonia'ce^, 494. 

 Pol'lcn, 79, 81 ; 81, a. 

 Pollin'ia. Masses of pollen, as seen in the Or 



chidaceae. 

 Po'lus. Many. 

 Polyan'drous. Many stamens inserted upon the 



receptacle. 

 Polyceph'alous. See Monocephaloue. 

 Poly del' phia, 256. 

 Polyga'la, 252. 

 Polygala'ce«, 443. 

 Polyga'mia, 26. 

 Polygamous. Having some flowers which are 



perfect, and others staminate, pistillate, or neu- 

 ter. 

 Polygona'ce^, 506. 

 Polymorphous. Changeable, assuming many 



Ibrms. 

 Polypet'alous, 71. 



Polypjiyl'lous. Having many leaves. 

 Poiysep'alous. A calyx. 

 Pome. A pulpy fruit, containing a capside, as 



the apple, 96. 

 Pomcgran'ate, 226. 

 Pond-lily, 231, 303. 

 Pontederia'cejE, 552. 

 Pop'lar, 283, Pi. 3, Fig. 1. 

 Pop'py, 17, 231. 



Pores. Apertures in the cuticle for perspiration. 

 Porous. Full of holes. 



vessels, 118. 



Pur'rected. Extended forward. 



PoR'rULACCA'cE.E, 419 



Pota'to, 185. 



Prcejlora' tion, 66. 



Pramorse' root, 34. 



Pras'inus. Green, like a leek. 



Praten'sis. Growing in meadow land. 



Prick'les, 64, b. 



Prick'ly pear, 225, PI. 1, Fig. 7. 



Pri'mine. The outer integument of the ovule. 



Primordial leaves, 40, 52, 101. 



PniMULA'cKyE, 479. 



Principle of organic life, 139. 



Prismat'ic, Like a prism, with several angles. 



Proboscis. An elongated nose or snout, applied 



to projecting parts of vegetables. 

 Pro'ccss. A projecting part. 

 Proctim'bent. Lying on the ground. 

 Produc'tiun by bulbs, 37, c. 

 Proliferous. A flower is said to be proliferous 



when it has smaller ones growing out of it. 

 Prop. Tendrils and other climbers. 

 Proo'er juices of vegetables, 124. 

 Pro tea, 180. 



Proximate principles, 140. 

 Prox'imus. Near. 

 Pru'nus, 226. 

 Pscu'do. Prefixed to a word, implies obsolete oi 



false. 

 Pseudo-pinnate. Falsely or imperfectly pinnate, 



the leaflets confluent, or not articulated at the 



base. 

 Pubescence, 64, g. 



Pubes'cent. Hairy, downy, or woolly. 

 Pulp. The juicy cellular substance of berries and 



other fruits. 



