INDEX. 



Dragon's-blood, whence produced, 49. 



Drosera, the sun-dew, 156. 



Drupa, etone-fruit, 133. 



Oryobalanops camphora (Gr. dryo a forest, and 

 ballo to germinate), camphor-oil of the, 48. 



Duckweed, stamen of the, 118. 



Ducts (Lat. duco to lead), vegetable tubes, 27. 



Dyes, vegetable, the various plants which secrete 

 them, 53. 



Dyticus (Lat. dytikos diving), the water-beetle, 

 27. 



E 



Echiales (Gr. echis a viper), 191. 



Eleeagnus (Gr. elaia the olive), hairs of the, 65. 



Elementary tissues of plants, 5 et seq. 



Elliptico-lanceolate leaf, 96. 



Elm leaf, 95. 



Elm tree, pores and spiral fibres of the, 17. 



Embryo of the seed, 134 ; its direction, 135. 



Endocarp of fruit (Gr. endon within, and karpus 

 fruit), 130. 



Endogens (Gr. endon, and ginomai to grow), 

 Class IV. of Lindley, 186. 



Endogenous stems, peculiar to tropical regions, 

 86; their component parts, 87 ; sections show- 

 ing their structure, ib. ; the cuticle, ib. ; their 

 vascular structure, 88 ; the pith, 89 ; peculiar 

 characteristics of, 90. 



Endosperm (Gr.emfon, and sperma the seed), 135. 



Enneandria (Gr. ennea nine, and andres males), 

 Class IX. of Linnaeus, 152, 160 ; order of, 153 

 et passim. 



Epic oil, whence obtained, 46. 



Epicarp of fruit (Gr. epi upon, and karpos fruit), 

 130. 



Epidermis of the plant (Gr. epi, and dermis the 

 skin), cells of the, 6, 60 ; a layer of inspissated 

 organic mucus, 60 ; the external layer of bark, 

 77. 



Epigynous exogens (Gr. epi, and gyne a female ; 

 exo and ginomai to grow outwards), a sub- 

 class of Lindley, 171. 



Epigynous stamens, 117. 



Epipblaeum (Gr. epi, and phlao to break), the 

 cork of the bark, 77, 78. 



Equisetum (Lat. "horse-tail"), 144. 



E. hiemale, 56. 



Ericales (Lat. erica heath), 189. 



Euonymus Japonicus (Gr. eu good, and onoma 

 a name ; Lat. "of Japan "), vertical section of 

 its leaf, 95. 



Euphorbia balsamifera (from Euphorbus a phy- 

 sician, and Lat. " balsam -bearing "), milky 

 juices of the, 30, 31 ; starch-cells of the, 39. 



Euphorbiales, 188. 



Exogens (Gr. exo and ginomai to grow out- 

 wards), Class VII. of Lindley, 188; sub- 

 classes of, 188192. 



Exogenous stems, their various parts, 75; the 



pith, ib. ; the medullary sheath, 76 ; the 



medullary rays, 77 ; the bark, ib. ; various 



sections of, 77, 81 ; the wood, 79 ; immense 



growth of, 82 ; longevity of, 83 ; their cellular 



structure, 84, 85 ; their general configuration, 



85. 



F 



Fagus (Lat. "the beech tree"), 14. 

 Fagus castanea, the chestnut, 26. 

 Fascicle, the, of inflorescence, 106, 107. 

 Fat, a vegetable secretion, 42. 

 Fat-cells in animals, 15. 

 Ferns, 138; varieties and specimens of, 139; 



arrangements of the stem, 140; fronds of the, 



141; the different genera of, 175, 176. 

 Festuca pratensis (Lat. "a field stalk"), the 



common meadow grass, 56. 

 Fibre cells from the leaves of different plants, 



14, 15. 

 Fibres of plants, elementary, 7, 8; woody, 19; 



various illustrations of, 20 et seq. ; different 



textile materials, 23. 



Flbrilla of the root (Lat. "a little fibre"), 91, 92. 

 Fibro-cellular tissue, 14, 15. 

 Ficus elastica (Lat. ficus a fig-tree, and elastica 



elastic), the India-rubber fig-tree, 29. 

 F. Indica (Lat. " Indian "), secretions of the, 49. 

 F. religiosa (Lat. "sacred"), the banyan-tree, 



30, 31 ; secretions of the, 49. 

 Ficoidales, 190. 



Fig-tree, milky juice of the, 31 

 Filament of the stamen, 118, 119. 

 Filices (Lat. "Ferns"), 175. 

 Filicales, 186. 

 Fir wood, section and glands of the, 19 ; pores of 



the, 20. 

 Fixed oils, 43. 

 Flax, consists of woody fibre, 21 ; its antiquity, 



22 ; its utility and value, 22, 23 ; fibre of 



illustrated, 23. 

 Flax-plant, woody fibre of the, 19; American, 



22. 



Flint, sources of, 55. 

 Flowerless plants, 138 ; ferns, ib. ; mosses, 142 ; 



lichens, 145; fungi, 146; algae, 147; sexual 



organs of, 148. 

 Flowers, organs of reproduction in, and their 



various terms, 105 et seq.; instructions for 



ascertaining their class and order, 176 et seq. 

 Fluid, formative, of plants, 6. 

 Forest trees, their vast power of resistance, 21. 

 Fo villa of the stamen (Lat. joveo to nourish), 



121. 



Fragaria (Lat. fragum a strawberry), 9, 10, 26. 

 Frog's foot, capillaries of the, 29. 

 Fronds of the fern, 138141. 

 Fruit, 129 et seq. ; its various parts, 130 ; the 



