INDEX. 



201 



Opuntia vulgaris (from Opus a city of Locris, and 

 Lat. vulgaris common), fibre cell from the, 14. 



Orange, cells of the, 9, 10. 



Orange flowers, oil of, 47. 



Orange tree, compound leaf of the, 101. 



Orbicular-lobed crenate leaf, 98. 



Orchall, a vegetable dye, 54. 



Orchis (Gr. orchis a plant), fibre cells from the 

 leaves of the, 14, 15 ; gynandrous flower of 

 the, 121. 



Orchidales, 187. 



Orders of plants of Linnaeus, 153 172 ; direc- 

 tions for ascertaining the, 178. See Classes. 



Organs of plants, 57 et seq. ; of reproduction, 

 105 et seq. 



Oryza sativa (Gr. oryza rice; and Lat. sativa 

 that may be sown), common rice, 56. 



Orthotropal of the ovule (Gr. orthos right, and 

 trope a turning), 128, 129, 135. 



Ovary of the pistil, 123, 124 ; illustrations of the, 

 126. 



Ovule (Lat. ovum an egg), the unripe seed of the 

 plant, 128 ; its various parts and names, 128, 129. 



Oxalate of lime raphides, crystals of, 42. 



Oxalic acid, whence derived, 50. 



Palece of inflorescence, 109. 



Palm, arrangement of woody fibre in the, 88. 



Palm forest, of endogenous growth, 86. 



Palm oil, a vegetable secretion, 44. 



Palm sugars, whence obtained, 52. 



Palm wine obtained from vegetable tissue, 23. 



Palmales, 187. 



Palmate-leaf, 98. 



Palms, various species of, 23. 



Palmyra palm, wine obtained from the, 23, 24. 



Palo de Vacca (Span, "the cow tree"), milky 



juices of the, 30. 

 Pandanus, the screw pine (Malay " something to 



be regarded"), emits aerial roots, 91. 

 P. ordoratissimus (Malay Pandanus, and Lat. 



"most odoriferous"), oil of the, 47. 

 Panicle, a raceme, 106, 107. 

 Papaver (Lat. " the poppy"), 28. 

 P. somniferum (Lat. papaver, and tomnifer 



causing sleep), 45. 



/apayales (Malabar papata the Papaw tree), 188. 

 Paper, manufacture of, 6 ; materials from which 



it is manufactured, 16. 

 Papilionaceous form of corolla, 115. 

 Pappus, a superior calyx, 111. 

 Papyrus (Lat. " paper "), early use of, 16. 

 Parenchyma (Gr. para from, and chymos juice), 



the cellular tissue, 8 ; connexions and func- 

 tions of the, 95. 

 Farmeiia (Lat. parma a shield, and heileo to 



inclose), section of a shield in the, 146. 

 VOL. II. 



P. perlata, and P. tartarea, vegetable dyes, M. 



Pea, starch cells of the, 35, 39. 



Peach wood, a vegetable dye, 54. 



Pear, thick- walled cells from the, 13 ; acid juices 

 of the, 50. 



Peduncle, the foot stalk, 105; of the pistil, 123, 124- 



Pentagynia (Gr. pente five, and gyn* a female), 

 the order, 153 et passim. 



Pentandria (Gr. pente five, and and res males), 

 Class V. of Linnaeus, 155 ; the order, 153 et 

 passim. 



Perfoliate leaf, 101. 



Perianth (Gr. peri around, and anthos a flower), 

 a part of inflorescence, 109, 110. 



Pericarp of fruit (Gr.peri, and karpos fruit), 130. 



Perigynous Exogens (Gr. peri, and gyne a fe- 

 male ; exogens growing outward), a sub-class 

 of Lindley, 189, 190. 



Perigynous stamens, 117. 



Perisperm (Gr. peri, and sperma the seed), 135. 



Persian berries, a vegetable dye, 54. 



Perspiration of plants, 17. 



Petals of the corolla, 113 ; stamens converted 

 into, 114. 



Petiole, the leaf-stalk, 96; described, 101, 102. 



Pharus cristatus (Gr. pharos a covering; and 

 Lat. "bearded"), 96. 



Phragmites (Gr. phragmos a hedge), section of 

 its stem, 90. 



Phytelephus macrocarpa (Gr. phyton a plant, 

 and elephas ivory; makros long, and karpos 

 fruit), the ivory nut, 13. 



Phytozoa(Gr.pAytonaplant, and zoa living), 145. 



Pimpinella anisum (Lat. bipinnatus twice pin- 

 nate, and " anise "), aniseed oil of the, 47. 



Pinnate leaves, various forms of, 99, 100. 



Pinnatifid leaves (Lat. pinnatus feathered), 97. 



Pinus palustris (Lat. " the marshy pine "), vege- 

 table secretions of the, 48. 



P. sylvestris (Lat. " the wood pine "), 8*. 



P. Webbiana, thick- walled cells of the, 7. 



Piperales (Lat. piper pepper), 190. 



Pistil, the female part of inflorescence, 122128 ; 

 Greek terms applied to, and its different parts, 

 123 ; the distinguishing characteristics of the 

 orders of plants, 178 et seq. 



Pisum (Lat. "a pea"), starch cells of the, 35, 39. 



Pitch, a vegetable secretion, 49. 



Pitchers of various plants, 103. 



Pith of exogenous stems, 75, 76 ; uses of, 76 ; of 

 endogenous plants, 89. 



Pitted tissue, 17 ; its importance, 18. 



Placentae (Lat. placenta a cake) of the ovule, 

 127, 128, 129 ; of the seed, 136. 



Plantain, starch secreted from the, 33. 



PLANTS, early classification of, 3 ; the correct de- 

 finition of, 3, 5 ; sensitiveness of, 4 ; anatomy 

 or structure of, a ; the tissues of, 6 et seq. ; 

 2 a 



