484 PllIXCirAL Di-LFiXlTlOXS AND NAMES. 



o 



Octandria, 131 



(Edcr, 459 



Oil in plants, 355 



Opiumj its effects on plants, 

 375 



Organic bodies, their proper- 

 ties, 34a 



Organs, their value, l68, — 

 means which nature presents 

 for knowing them, 174, — 

 their change, 18,'^, — union of 

 them, 185 



Orto, 442 



Ovarium, 104 



Qviedo, 442 



Oxalic acid, 351 



Oxygen exhaled from leaves, 

 314, — its effects on plants, 

 374 



PaUsot-Beauvois, 466, 46? 



Pallas, 458, 467 



Pahmtruch, 465 



Panicle, 84 



Papilionaceous flov/ers, 98 



Paraphysis, sap-tubes in the 

 neighbourhood of the sexual 

 parts of mosses, (PL 2. Fig. 

 6.) 



Parasitic plants, 418, 423 



Parenchyma of leaves, 309, — of 

 flov/ers. 324 



Parkinson, 449 



Partitions of li'uit, 110 



Pavon, 466 



Pentandria, 131 



Perrault, 444 



Persoon, 462, 467 



P'eiiver, 449 



Phanerogamia, 131 



Pharmacopolists of ancient 

 Greece, 430 



Phosphorus in plants, 36 1 



Phvase, 235 



Piso, 448 



Pistil, 106,— its structure, 339 



Pith of plants, 67,— Its struc- 

 ture, 299 



Placenta, 1 1 1 



Plinius, 435 



Plukuet, 449 



riumier, 453 



Polarised matters in flowers, 

 630, — ar2 never free in or- 

 ganic bodies, 344 



Pollen, 107, — its structure, 335, 

 33i^, — ^^composition, 337, — ef- 

 fects, 381 



Pollich, 459 



Polo, 437 



Polyadelphia, 131 



Poiyandria, ib. 



Polychroit, 362 



Polycotyledonous, 386 



Polygamia, 131 



Porous vessels, 283 



Potash, a production of plants, 

 358 



Primeval world, 403 



Primitive forms of plants, 270 



Punctured vessels, 283 



Pursh, 466 



9 



J. Qucr y Martinez, 407 



R 



Racemus, 84 



llqfinesque, 465 



Raphe. See Commissura. 



Ramvolf, 442 



Raij, 141, 445 



Rebentisch, 465 



Receptacle, 85, — its structure, 



changes after impregnation, 



383 

 Redoutc, 



Regularity of parts, 20, 203 

 Reichard, 462 

 Reichcl, 457 

 Resin in plants, 357,— its flow 



in trees, 419 

 Retrogradation in vegetation, 



414 

 Rheidc, 448 

 Rhizotomisth of ancient Greece, 



430 

 Richard, 139 



