496 



GLOSSARIAL INDEX. 



Slides (slips), 2. 



Sodic chloride (NaCl), 15; diffusion of, 

 222, 223. 



Sodic hydrate (NaOH), use of, as a 

 reagent, 7; use of, in the manufacture 

 of paper-pulp, 147. 



Sodic hypochlorite (NaCIO), 11. 



Sodium, can partly replace potassium in 

 plants, 255; occurrence of, in plants, 

 247. 



Soft bast, the unlignified cells of the 

 liber portion of a fibre- vascular bundle. 



Soils, absorption of heat by, 245; ab- 

 sorption and retention of moisture by, 

 239, 282; chemical absorption by, 243; 

 classification of, 238; condensation of 

 gases by, 244; effect of transpiration 

 upon, 283; evaporation from, 241, 282; 

 filtration through, 242; formation of, 

 237; influence of, upon roots, 234; in- 

 fluence of, upon transpiration, 276 ; 

 mechanical ingredients of, 239; nitro- 

 gen available to plants in, 333 ; physi- 

 cal properties of, 239; root-absorption 

 of saline matters from, 244; tempera- 

 ture of, 245; transportation of, by 

 water, 238. 



Solatium Pseudocapsicum, coloring- 

 matters in berries of, 177. 



Solid yellow, 19. 



Sources of nitrogen for the plant, 327. 



Specific gravity of wood, 144. 



Spectrum, classification of the rays of 

 the, 308 ; effect of the rays of the, upon 

 protoplasmic movement, 206 ; effect of 

 the rays of the, upon transpiration, 

 278; of chlorophyll, 292, 313. 



Spermoderm (o-n-e'p/ia, seed ; 6e'p/u.a, skin), 

 178. 



Sphgeraphides (a-<f>alpa, sphere ; pa^t';, 

 needle), 53. 



Sphere-crystals, 53. 



Spines, 69. 



Spiral markings, 30, 84. 



Spongiole (spongiola, a little sponge), 

 230. 



Spongy cortex, 120. 



Spongy parenchyma, 61. 



Sports. 444. 



Spring wood, 138, 396; transfer of water 

 through, 258. 



Staining agents, 15 ; effect of, upon pro- 

 toplasm, 210. 



Stamens (stamen, a thread), development 

 of, 171; sensitiveness of, 423. 



Starch, amount of, in plants, 357; ap- 

 pearance of, when examined with 



polarized light, 50; conversion of. into 

 sugar, 357, 467; composition of, 50; 

 first visible product of assimilation, 

 321; in latex, 96; in seeds, 182; pres- 

 ence of, in chloroplastids, 42; produc- 

 tion of, in a plant dependent on potas- 

 sium, 252; solubility of, 49; structure 

 of, 47; tests for, 8, 50. 

 Starch cellulose, 50. 

 Starch generators. See Leucoplastids. 



Steam, action of, on chlorophyll gran- 

 ules, 290, 475, n. 



Stearic acid (C^H^Oo), 360. 



Stearin (C 57 H n oO 6 ), 360. 



Stellate hairs (stella, a star), 69. 



Stellate scales, 69. 



Stems, 118; bleeding of, 264; course of 

 fibro- vascular bundles in, 125; cortex 

 of, 119; development of, 124; dicoty- 

 ledonous (exogenous), 129, 136 ; epider- 

 mis of, 119 ; fibro-vascular bundles of, 

 120; injuries of, 149; monocotyle- 

 donous (endogenous), 129, 133, 135; 

 of mosses, 154; of vascular crypto- 

 gams, 154; pith of, 124; pressure of 

 sap in, 264; primary structure of, 119; 

 secondary structure of, 135 ; sensitive- 

 ness of, 417; transfer of Avater through, 

 258 ; wilting of cut, 263. 



Stereom (o-reped?, firm), 191. 



Stigma (vriyna, a mark made by a 

 pointed instrument), 427 ; character of 

 the cells of the, 172; extent of surface 

 of the, 427, 430. 



Stigmatic secretion, 427. 



Stock, 152. 



Stomata (o-rdjao, the mouth), ~0, 268; de- 

 velopment of, 72, 376 ; guardian cells 

 of, 70, 269; mechanism of, 269; occur- 

 rence of, 70, ., 71, n., 72; passage of 

 gases through, 303 ; relations of, to 

 external influences, 270; size of, 71. 



Stratification, 30. 



Striation, 30. 



Stroma (a-Tpta^a, a bed), 198. 



Strontium, occurrence of, in plants, 256. 



Structural characters of wood, 146, n. 



Strychnia (C 2 iH 22 N 2 2 ), 365. 



Style (stilus, a style), 427; character of 

 the cells of the, 172; conductive tissue 

 of, 431 ; sensitiveness of, 424. 



Suberification (suber, cork ; facio, I 

 make), 34, 38. 



Suberin, 38; tests for, 7, 14, 39. 



Submerged phaenogams, leaves of, 161. 



Substitute fibres, 80. 



Sugar, diffusion of, 222 ; effect of a solu- 



