INDEX. 



203 



common), tube from the, 8; castor oil ex- 

 tractad from the seeds, 45. 



Ringent corolla, 115. 



Roccella fuciformis, and R. tinctoria (Portug. 

 roccha a rock), vegetable dyes, 54. 



Roots of plants, 90, 91. 



Rootstock, of plants, 73. 



Rose, specimen of a perfect one, 113. 



Resales, 190. 



Rosetangles, sea-weeds, described, 173. 



Rosmarinus (Lat. ros dew, and marinus pertain- 

 ing to the sea), oil of, 47. 



Rubia tinctoria (Lat. rw&tw red, and tinctiu a 

 dye), 54. 



Runner, roots and leaves of the, 72 ; a creeping 

 stem, ib. 



Rush, star-shaped cells from the stem of a, 11. 



Russia leather, causes of its durability, 47. 



Rutales (Sax. ruta rue), 190. 



S 



Saccharinum offlcinale (Lat. saccharum sugar, 

 and officinale of the shops), representation of 

 the, 52, 90. 



Saccolobium guttatum (Gr. sakkos a sack, and 

 lobos a lobe ; Lat. guttatum drop-spotted), 

 fibre cell from its leaf, 14. 



Safflower, a vegetable dye, 54. 



Sage, stamen of the, 1 18 ; pollen of the, 122. 



Sago palm (Malay tagu a palm), starch cells of 

 the, 34, 35, 39; hairs of the, 66 ; fibres of the, 

 134. 



Saguerus saccharifera (Javanese sagu a palm- 

 tree, and Lat. " sugar-bearing"), wine obtained 

 from the, 23. 



Salisburia adiantifolia (from R. H. Salisbury; 

 Gr. adiantos dry, and Lat. folia leaves), bor- 

 dered pores of the, 20. 



Salix (Lat. "the willow"), 27. 



Salvia (Lat. " sage"), pollen of the, 122. 



Sambucus nigra (Gr. sambuke an ancient harp 

 made of elder wood, and Lat. nigra black), 

 pith of the, 75. 



Santalum alba (Persian sandul-safed the sandal- 

 wood of India, and Lat. " white " ), oil of the, 47. 



Sapotacea (Lat. sapo soap), class of the, 31. 



Sapindales, 189. 



Sarcina (Lat. " a pack"), cells of the, 8. 



Sarcocarp of fruit (Gr. sarkos of flesh, and karpos 

 fruit), 130. 



Sarracena (in honour of Dr. Sarraein of Quebec), 

 pitcher plant leaf of the, 103. 



Saxifragales (Lat. saxum a stone, and frango to 

 break- Saxifrage), 190. 



Scalariform duct (Lat. scalaa, ladder, and/orma 

 form), 27, 28. 



Scale mosses, their characteristics, 144 ; notices 

 of. 174. 



Scape of the flower, 105. 



Scarlet Pimpernel, dehiscence of the, 131. 



Schizagonium murale (Gr. schiza a cleft, and 



0seed ; Lat. muralis pertaining to a wall), 



filament of the, 5. 

 Scilla Mauritanica (Gr. sttlla a bulb, and Lat. 



" Mauri tanian"), the squill, 41. 

 Scirpus Romanus (Lat. "a bull-rush"), pollen 



of the, 122. 



Sclerogen (Gr. skleros hard, and gennao to en- 

 gender), the tissue so called, 7 : concentric 



layers of, 14. 



Scotch fir, its numerous sectional rings, 84. 

 Screw pine emitting aerial roots, 91, 92. 

 Scurf of plants, 68. 

 Sea-weeds, cellular structures of, 146 ; family 



of, 147 ; the fucus, 173. See Algse. 

 Secretions of plants, woody fibre the storehouse 



of the, 20 ; starch, raphides, oils, fats, gums, 



acids, opium, sugar, silica, &c., 3155 ; reser- 

 voirs of, 48. 



Secundine of the ovule, 129, 134. 

 Seed of flowers, 18, 134; its various parts, ib. 5 



its relation to the fruit, 135; the different 



terms applied to, 135. 

 Semianatropal of the ovule (Lat. semi half, Gr. ana 



backwards, and trope a turning), 128, 129, 135. 

 Sempervivum tectorum (Lat. semper vivo to live 



for ever, and tectum a roof), the common 



house leek, 73. 

 Sensitiveness of plants, 4. 

 Septa (Lat. septum a wall) of the ovule, 127. 

 Septicidal dehiscence of fruit (Lat. septum, and 



ccedoio cut), 131. 

 Septifragal dehiscence of fruit (Lat. septum, and 



frango to break), 131. 

 Serrate leaves (Lat. serrata saw-like), 97. 

 Sesamum orientale (Lat. sesama sesame, and 



"oriental"), 46. 



Sesamum oil, a vegetable secretion, 46. 

 Sessile inflorescence, examples of, 105. 

 Sessile leaves (Lat. sessilis creeping), 96. 

 Sexual organs of flowerless plants, 148. 

 Sexual system of Linnaeus, 152. 

 Shea butter, whence obtained, 46. 

 Shell-lac, a vegetable secretion, 49. 

 Shrubs, their component parts, 74. 

 Silenales, 190. 

 Silica, vegetable secretions of, 55; sources of, 



55, 56. ; proportion of in various vegetable 



substances, 57. 

 Siliculosa (Lat. "a small pod"), the order, 153 



et passim. 



Siliqua, a pod, 133, 134. 

 Siliquosa (Lat. "a large pod"), the order, 153 



et passim. 

 Silk, produced from the animal kingdom, 22 ; ita 



power of resistance, 22 ; fibre of illustrated, 82. 



