GENEBAL A1SD GLOSSARIAL ITfDEX. 



Nectaries, 114. 

 Nervature of leaves, 55. 

 Nerves, 55. 

 Neuter flowers, 94. 

 Nitrogen, sources of, 559. 



, effect of, 576. 



. elimination of, 575. 



Nitrogenous constituents, 



578. 



Nodding, 40. 

 Nodes, 21, 42. 

 Nodose, 40. 

 Nomenclature, 164. 

 Noterophiles, 661. 

 Nucleolus, 497. 

 Nucleus of cells, 496. 



, changes in, 588. 



band, 588. 



of ovule, 136. 

 Nuculanium, 150. 

 Nucule of Charaeere, 445. 

 Nucules, 140. 

 Number, 90. 

 Nutans, 40. 

 Nutriment, sources of, 



557. 

 Nutrition of cells, 547, 



551. 



in Algae, 554. 



Nymphasaceas, stein of, 



530. 



Obcorclate, 59. 



Obdiplostemonous, 124. 



Oblique, 58. 



Obliquity, 101. 



Obovate, 57. 



Obtuse, 59. 



Obvolute, 73. 



Occluse, 114. 



Ocrea, 54. 



Offsets, 33. 



Oils, essential, 504. 



, fixed, 503. 



, volatile, 581. 



Oosphere, 156. 

 Oospores, 455, 628. 

 Opercular dehiscence of 



anthers, 123. 

 Operculum of Mosses, 



423. 



Opposite, 42. 

 Orbicular, 57. 

 Orchids, roots of, 536. 



, names of, 169. 



Organic acids, 578. 



Organ ogeny, 87. 



Organs, 73. 



, development of, 87, 



591. 

 , essential, 118. 



, internal anatomy 



of, 525. 



Orthotropous, 138. 

 Osmose, 562. 

 Ovary, 12, 128. 

 Ovate, 57. 



Ovate-lanceolate, 58. 

 Overhanging, 40. 

 Ovule, 136. 



, characters of, 136. 

 -, development of, 



601. 



, parts of, 137. 



of Angiosperms,630. 



of Gyinnosperins, 



628. 

 , of Phanerogams, 



627. 



, structure of, 541. 



Oxygen, evolution off 575. 

 Ozone, action of, 559. 



Palate, 113. 

 Pales, 76, 117, 403. 



of capitula, 80. 



Palisade tissue, 540. 

 Palmate, 63. 

 Palmifid, 61. 

 Palminerved, 55. 

 Palmipartite, 61. 

 Palrnipinnate, 64. 

 Palrnisect, 61. 

 Panicle, 78. 

 Paper, botanical, 4. 

 Papilionaceous corolla, 



111. 



Pappus, 108. 

 Paracellulose, 492. 

 Parallel-nerved, 55. 

 Parasitic plants, 20. 

 Parenchyma, 507. 

 Parietal placentas, 132. 

 Paripinnate, 63. 

 Partial petiole, 62. 

 Passages, intercellular, 



523. 



Patent, 41. 

 Pectase, 581. 

 Pectin, 581. 

 Pectose, 581. 

 Pedate, 61, 63. 



Peclatifid, 61, 63. 

 Pedatipartite, 61, 63. 

 Pedatisect, 61,63. 

 Pedicel, 75. 

 Peduncle, 75. 



, foliaceous, 85. 



Peltate, 59. 



anthers, 124. 



stigma, 135. 



Pendent, 40. 

 Pendulous, 40. 



ovule, 137. 



Penicillate stigmas, 135. 

 Penninerved, 55. 

 Pentadelphous, 126. 

 Pentamerous flowers, 91. 

 Pentastichous, 44. 

 Pepo, 151. 



Perennial plants, 544. 

 Perfect flowers, 91, 118. 

 Perfoliate, 58. 

 Perforated cells, 493. 

 Perianth, 11, 104. 

 , characters of, 108, 



114. 



of Grasses, 117. 



Periblem, 515. 

 Pericambium, 515, 597. 

 Pericarp, 140. 

 Perichsetial leaves, 433. 

 Perichastium, 433. 

 Periderm, 522. 

 Peridium, 467. 

 Perigone, 104. 

 ( Jungermanniacese), 



433. 



Perigonial leaves, 433. 

 Perigynium, 117. 

 Perigynous, 99, 

 Periodicity in plants, 544. 

 Peripherical embryo, 157. 

 Perisperm, 154. 

 Peristome, 431. 

 Perithecia, 468. 

 Persistent, 86. 



calyx, 109. 



corolla, 114. 



Personate, 113. 



Perulae, 71. 



Petals, 11, 103, 109. 



strap-like, 110. 



Petaloid, 110. 



filament, 120. 



perianth, 115. 



Petiole, 49, 51, 148. 



, structure of, 540. 



3 B 



