GLOSSABIAL INDEX. 



489 



Hilum {hilum, a litlle Hiing), 48. 



Holinel's tests for ligiiiii, 10, li. 



Homogeneous pith, 12i. 



Honey of flower, 451. 



Hot springs, occurrence of plants in, 205. 



Hover's mounting-media, 23. 



Humus, 337, it-. 



Humus-plants, 337. 



Humus soils, 239. 



Hybridization, 447, 455; reciprocal, 455. 



Hybrids, 455; derivative, 458; produc- 

 tion of artificial, 4;3 ; strength of, 458; 

 tendency of, to vary, 458. 



Hydrochloric acid (HCl), 12; diffusion 

 of, 223; used in the examination of 

 chlorophyll granules, 12, 290 ; used 

 in the examination of plantKirystals, 

 54. 



Hydrostatic water, 242. 



Hj'drotropism (iiSup, water; rpdirot, a. 

 turn), 393. 



Hygvoscopicity (iypor, wet; anoitia, I 

 look at), 239. 



Hygroscopic movements, 399. 



H3'groscopic water, 242. 



Hypochlorin (yiroxAwpoy, greenish yel- 

 low), 2;)0, 322. 



Hypocotyl (iiro, under; noniAii, a cup). 

 See Caulicle. 



Hypoderma (uiro, under; Scpfiiz, the skin), 

 119. 



Hypoiiastio curvature (iird, under; i/ao-idi, 

 close-pressed), 408. 



H\'sterogenic intercellular spaces (uo-re- 

 po?, after; ycfmu, I produce), 99, rt. 



Idioblasts (Mios, peculiar; /sXncrTii!, 



offshoot), 59, re., 97. 

 Inclination of the wood elements to the 



axes of trees, 143. 

 Individual, 425. 

 Indol (CioHuNj), use of, as a test for lig- 



nin, 13, 37. 

 Inferior ovaries, arrangement of fibro- 



vascular bundles in, 174. 

 Initial cells, 105. 

 Injuries, of the stem, 149 ; to the plant, 



470. 

 Insectivorous plants, 338 ; list of works 



relating to, 351. 

 Integuments of the seed, 178, 

 Intercellular spaces, 60,99; modes of 



development of, 99; occurrence of 



protoplasm in, 217. 

 Intermediate zone, 134. 

 Internal glands, 100. 



Internodes, characteristics of growing, 

 390; movement in twining plants of 

 young, 406. 



Interstices, 100. 



Intextine, 428, n. 



Intine (intus, within), 428. 



Inti-amolecular respiration, 370. 



Intussusception theory regarding mode 

 of growth of the cell-wall (intus with- 

 in; siisceptio, a taking up), 219. 



Inulin (CeHioOo), composition of, 51; oc- 

 currence of, in plants, 358; tests for, 

 12, 50. 



Inverted sugar, 359. 



Iodine, action of light on solutions of, 

 9; action of, upon callus, 93; occur- 

 rence of, in plants, 256; solubility of, 

 8 ; as a test for cellulose, 8 ; as a test 

 for starch, 8. 



Ipomcea, experiments upon fertilization 

 of, 448. 



Iron, necessary for development of chlo- 

 rophyll granules, 254, 297; occurrence 

 of, in ash of plants, 247; occurrence 

 of, in plants, 254. 



Isodiametric cells (io-o^, equal; 5ta, 

 through; MeVpoc, measure), 60. 



Kakyokikesis (icipvov, kernel ; kivcu, I 

 change), a term used to designate the 

 series of changes which the nucleus 

 goes through in cell-division. 



Kinetic energy (Kivitu, I move), 307. 



Knot, 154. 



Kraus's process for extraction of the 

 chlorophyll pigment, 291. 



Kj^anizing, 14fJ. 



Kvanophyll (nu'ovo!, dark blue; ijn/AAoi-, 

 'leaf), 291. 



LABURNHsr, continuity of protoplasm in 



cells of cortex of, 215. 

 Lactuca Scariola, structure of leaves of, 



160. 

 Lacunae (lacuna, a cavity), 100. 

 Latex, 96. 

 Latex-cells, 94. 



Latex-tubes. See Latex-cells. 

 Laurel-camphor (CioHuO), 363. 

 Layering, 444. 



Lead, occurrence of, in plants, 256. 

 Leaf-trace, 131, n. 

 Leaves, absorption of ammonia b3', 332, 



341 ; absorption of aqueous vapor by, 



283; adaptations of, to climate, 280; 



