170 



INDEX AND GLOSSAEY. 



Pectinate, combed, finely pinnatifld. 



Pedate. shaped like a bird's foot, 296. 



Pedicel, Peduncle, 343. 



Peltate, shield-form, 295. 



Pendent, Pendulous, hanging, drooping. 



Penicillate, with a tuft of hairs, as if a 



camel' s-hair pencil. 

 Pente (in Greek composition), five ; as. 

 Pentaiiterous, 5-parted. 

 Pentandrous. with 5 stamens, 118. 

 Pepo, a fruit like a melon, 161. 

 Perennial, living several years, 43. 

 Perfect flower, ( C ) with both stamen and 



pistil. 



Perforate, through the leaf, 311. 

 Peri (in Greek composition), around ; as, 

 Perianth, 53. 87; forms of, 99. 

 Pericarp, 146 ; forms of, 150. 

 Perigynium, 107. 

 Pemgynous, 96, 119. 

 Perisperm, same as Albumen, 179. 

 Persistent, remaining long in place, 109. 

 Personate, 103. 

 Petals, 52; forms of, 89. 

 Petaliferce, 511. 

 Petaloid, resembling petals. 

 Petiole, 274. Petiolate, 271. 

 Petiolule, 276. 

 Phcenogamia, 507. 

 Phyllo'dium (plural Phyllodia), 321. 

 Phyllotaxy, leaf-arrangement, 261. 

 Physics, 16. 

 Physiology, 436. 



Phytology (Greek, phytos. a plant), 23. 

 PUeorhiza, cap of a rootlet, 428. 

 Pileus, cap of some Fungals. 

 Pilous, with erect, thin hairs, 313. 

 Pinnule, 302. Pinnatifid, 293. 

 Pistil. 56, 123. 



Pitchers (leaves). (See Ascidia, 322.) 

 Pith. 406. Pitted cells, 376, 390. 

 Pitted, with depressions or excavations. 

 Placenta. 127 ; free axile, 135. 

 Plant defined. 14. 

 Plan of the Flower, 58. 

 Pleurenchyma, 389. 



Plicate, plaited lengthwise as a fan, 254, 340. 

 Piumaus, feathery. 

 Plumule, a little plume, 31, 180. 

 Pollen. Ill, 121. Pollen-tube, 45C. 

 Pottinia, masses of pollen, 122. 

 Poly (in Greek compounds), many ; as, 

 Polyadelphous, 120. 



Poly'gamous, with some imperfect flowers. 

 Polyjwtalce. (See Dialypetalae, 513.) 

 Polypetalous, Polysepalous, 90. 

 Pome, a fruit like an apple, 162. 

 Posterior, next the axis. 

 Potato, manner of its growth, 238. 

 Precocious, flowering before the leaves. 

 PrcRfoliation, vernation, 252. 

 Premorse, ending abruptly, 235. 

 l*ressfor drying plants, 6. 

 Prickles, 403. 



Primine, same as Testa, 173 

 I'rimdrdial utricle, 373. 

 Prismatic, prism-shaped, having several 



parallel, longitudinal angles. 

 Procumbent (stem), 212. (Fig. 2-18.) 

 Produced, extended more than usual. 

 Prolif en/as, reproducing; as cymes from 



the midst of a cyme, flowers from the 



midst of a flower. 



Protein, 440. Protoplasm, 380. 

 Provinces, 509. 



Pruinous, powdered, as if frosted 314. 

 Pruriens, causing an itching sensation. 

 Pseudo (in Greek composition), spurious. 

 Pubescent, downy with short, soft hairs. 

 Pdbtrulent, minutely downy. 

 Pumilous (pumilus), dwarfed in size. 

 Punctate, seeming as if perforate, or market 



with minute dots. 

 Pungent, piercing, sharp -pointed. 

 Putamen, the bony nucleus of a drupe. 

 Pyramidal, form of a cone or pyramid, 

 Pyriform, of the form of a pear. 

 Pyxis, a pericarp with a lid, 163. 



fytadri (in composition), four; as, 

 Quadrifoliate, four-leaved. 

 Quadrangular, four-angled. 

 Quadrijugate, with four pairs of leaflets. 

 Quadrilateral, four-sided. 

 Ouinque (in composition), five. 

 Quinate, growing in fives, 306. 

 Quincuncial, 339. (Fig. 300.) 

 Quintuple, five-fold. 



Race (Latin, stirps), a permanent variety, 



as Red-cabbage. 

 Raceme, 358. 



Rachis, axis of the inflorescence, 301, 343. 

 Radiate, diverging from a common centre. 

 Radiate (in the Composites), the outer row 



of florets ligulate. (Fig. 388.) 

 Radiant, outer flowers enlarged (and often 



neutral. Fig. 271) ; or (in the Composites), 



all the florets ligulate. 

 Radical, from the root, 262. ' 

 Radical (of the flower), 65. 

 Radicle, rootlet (of the embryo), 31, 180. 

 Raraal (of a branch), 262. 

 Raphe (of the ovule or seed), 141. 

 Raphides, 383. 

 Rays, 359, 362. 



Receptacle, 57. (See Toms.) 

 Recurved, bent (not rolled) backward. 

 Reflexed, curved backward excessively. 

 Refracted, bent back suddenly as if broken. 

 Regma, fruit as of Geranium, 168. 

 Regular, like parts similar, 60, b. 

 Reniform, kidney-shaped, 295. 

 Repand (margin), 310. 

 Repent, creeping (sc. stems, 232). 

 Respiration, 482. 



Resupinate, reversed, upside down. 

 Reticulate, netted, 284. 

 Retrorse, backward, downward. 

 Retuse (apex), 307. (Fig. 367, c.) 

 Recolute, rolled backward, 256. 

 Rhizoma, Rhizome, 230, 233. 

 Rhombic, Rhomboidal, in the figure ol I 



rhomb, or approaching it. 

 Ribs, the chief veins of a leaf ridges, 

 i Ringent (corolla), 103. 

 Root, 197. Root-stock. 233 

 Rosaceous (corolla), 100. 

 Rostrate, beaked, with a beak. 

 Rosulate (leaves), arranged around the IB 



of the stem, as the petals of a Rose, 262. 

 Rotate, wheel-shaped, 102. 

 Rotation, circulation of fluids in the cell. 

 Rubicund, blushing, rosy red. 

 Rudiment, the beginning of a thing 

 Rvqous, wrinkled, 315. 



