INDEX 



435 



phyll-formatio n, 41, 74; 

 chloroplasts, no, in, 112; 

 enzyme-action, 56 ; leal-struc- 

 ture, III, 168-70, 172 ; posi- 

 tion of leaves, 112; sleep- 

 movements, 115; stomatal 

 mechanism, 100 ; zoospores, 

 etc., 183, 214. 



Light, concentration of, 06 (li.t;.) ; 

 perception ol'. 1)5, 181 ; pro- 

 tection against, 95, 102, no, 

 III, 112, 199. 



Lignification, 32. 



Lignified walls, 32, 33, 68 ; re- 

 actions of, 32. 



Lignin, 32. 



Lignum vit;c (Guaiacuin ufficinale), 

 130. 



Ligule {ol Selagini'lhi). 318 (fig,). 



Liguliflone, 153. 



Liliaccce, 371, 408. 



Lily (Lilittm), no; embryo of. 371 

 (fig.) ; pollen and embryo sac 

 of, 367 (fig.) ; stamen of, 363. 



Lime (Tilia), secondary phloem of, 

 130 ; secondary wood of, 28, 

 120, 127. 



Lime-family (Tiliacea;) , 103. 



Limestone rocks, role of Alga? in 

 formation of, 204. 



Linaceas, 61, 



Linseed oil, 49. 



Liniim usitatissimuiii, 34, 49. 



Lipase, 49, 53 ; extraction of, 54. 



Listera ovaia, embryo of, 371 (iig.). 



Litmus, 261. 



Liverworts, 180, 193, 269, 355, 407. 

 See Hepaticje. 



Lloyd's alcohol method (for deter- 

 mining stomatal aperture) , 

 99, 100. 



Lockjaw Bacillus {Bacillus tetani), 

 263 (fig.). 



Loculi (of ovary). 356. 364. 



Loganiacece, 61. 



Logwood {Heemato.\ylo)i campe- 

 chianum), 126. 



Lopjiocolea, 272, 280. 



Loranthaceae, ovary of, 365. 



Loss of sexuaUty, 214, 236, 245, 



305. 372- 

 Low power (of microscope), 400. 

 Lowland forms of Alpine plants, 379. 

 Lupine (Lnpinus), 30, 47, 52. 

 Lvcoperdon, 245, 250, 251 (tig.). 

 Lycopodiales, 289, 310, 313-20 



(figs.), 407. 

 Lycopodiitm, 180, 289, 310, 314, 



lO (fig.). 318, 321, 407 ; L. 

 clavaiiiin. 314, 315, 316 (fig.); 

 /-. iiiitiidatuni, 315; L. sclago, 



314. 315. 



Lycoptis europaius, 174. 



Lyginopteris {Lyginodi'iidron) old- 

 hamia, 328-33 (figs.) ; ana- 

 tomy of, 328-30 (fig.) ; micro- 

 sporophylls of, 330, 331 (fig.) ; 

 ovules and seeds of, 331-3 

 (figs.) ; vegetative organs of, 

 328, 329 (fig.). 



Lyiigbya, 205, 206 (fig.). 



lA'sigenous secretory cavities, 151, 

 ,1.52 (fig.). 



Lvsunachia iiemoriitn stoma of, i6o 



LyUu'uni salicat'ia, 174. 



]\Iacyocvstis, 200. 



Madder {Rubia pevegyina), stoma of, 



97 (fig.). 98. 



Mahogany (Sivietenia mahagoni), 

 126, 130. 



Maiden Hair Fern {Adiuiituiii), sori 

 of, 291 (fig.), 296. 



Maiden Hair Tree (Ginkgo biloba), 

 326, 334, 408. 



Maize {Zea mais), disease of, 248 ; 

 grains of, 45, 52. 53. 384 ; 

 hybrid-endosperm of, 386 ; leaf 

 of, 117; root-structure of, 73, 

 74 (fig.) ; stem-structure of, 

 84-6 (figs.). 



Male Fern {Nephrodiiim fihx-mas), 

 sorus of, 296 (fig.), 298 (fig.) ; 

 sporangium of , 299 (fig.) ; spore- 

 formation in, 307 (fig.) ; stem 

 of, 290, 294 (fig.). 



Male sexual cells, 186, 220, 389; of 

 Angiosperms, 364, 367 (fig.), 

 368 : of Conifers, 349, 350, 351 

 (fig). 353 ; of Fungi, 234, 236, 

 244 (fig.). Sec also Spermato- 

 zoids. 



Malic acid, 60, 302. 



Mallow (Malva), 130, 152- ovule 

 of, 358 (fig.). 



Mallow-family (Malvacea;), hairs 

 of, 102, 103 ; stamens of, 360. 



Malt, 46, 256, 257 ; — sugar, 45". 



Maltase, 47, 53. 



Maltose, 45, 46, 53, 56 ; hydrolvsis 

 of. 47. 53 i reactions of. 47. 



Malva, 130, 132 ; ovule of, 358 (fig.). 



Malvaceje, hairs of, 102, 103 ; 

 stamens of, 360. 



