INDEX 



427 



"Finger and Toe" disease (Plas- 

 modiophora brassicee), 143, 251, 



254 (fig.)- 

 Fir Clubmoss (Lycopodium selago), 



314- 



Fir, Douglas (Pseudotsuga doug- 

 lasii), 128, 129, 352 (fig.), 353 : 

 Scotch (Pinus sylvestris), 37, 

 141, 152, 166, 334 et seq. (figs.); 

 Silver (Abies), 335, 336 (fig.). 

 344, 347 ; Spruce -- (Picea 

 excelsd), 63, 334, 335 (fig.). 



Fixation of nitrogen, 266, 267. 



Flagellata, 406. 



Flax (Linum usitatissi mum) , 34, 

 265 ; New Zealand (Phor- 

 mium tenax), 34. 



Fleshy roots, structure of, 132, 133, 



154, 155 (fig-)- 

 Flexibility (of petiole), 115. 

 Floating Alga? (Plankton), 192, 193 



(fig.), 207, 210. 

 Floating leaves, structure of, 101, 



i?4, 177. 



Floating Pondweed (Potamogeton 

 natans), stem-structure of, 172, 



174 (fig-)- 



Floral axis, 354, 355, 370 ; nec- 

 taries, 144, 148, 149, 363. 



Flowering Plants. See Angiosperms. 



Flowering Rush (Butomus), 356.' 



Flowers, 354-6, 373 ; cleisto- 

 gamic, 364 ; colour of, 63 ; 

 detachment of, 142 ; nectaries 

 of, 144, 148, 149, 363 ; odour 

 of, 62 ; zygomorphic, 355, 



Flowers of tan (Fuligo), 251. 

 Flowing water, plants of, 195, 197. 

 Fly-disease (Empusa WIUSCCB}, 231 



238. 

 Fly Toadstool (Amanita muscaria], 



255. 



Focusing under the microscope, 

 400. 



Foliose Liverworts (Jungerman- 

 niales), 271 ; antheridia of, 

 279 ; archegonia of, 280 ; pro- 

 tonema of, 288 ; sporogonia of, 

 271 (fig.), 282 ; structure of, 

 271 (fig.), 272 ; vegetative 

 reproduction of, 277. 



Food-content of plant-products, 53. 



Food-plants, 43, 44, 45, 48, 49, 

 52, 53, 60, 203, 204, 255, 261, 

 323, 352. 



Food-reserves, 40-52, 242, 319 ; 

 accumulation of, 13 ; in seeds, 



4, 44.. 45, -47, 49, 5, 52, 333, 

 351 ; in storage-organs other 

 than seeds, 44, 45, 50 ; nitro- 

 genous, 50 ; storage of, 40, 64, 

 88, 132 ; translocation of, 6, 

 41, 46, 52, 124, 132, 282. 



Food-storage, 13 ; in Fungi, 231 ; 

 in Liverworts, 273 ; inoospores, 

 223 ; in roots, 132 ; in seeds, 

 4, 44, 45, 47, 49, 5, 52, 

 333, 351 I in spores, 319, 321 ; 

 in zygospores, 185. 



Foot, 282, 370 ; of Ferns, 302 ; of 

 Liverworts, 282, 283 (fig.) ; of 

 Mosses, 284, 285 (fig.) ; of 

 Selaginella, 320 (fig.). 



Forests, distribution of, 334, 391. 



Forget-me-not (Myosotis], 102 ; 

 - mildew (Oidium), 243. 



Forked branching of, Algae, 200, 201 

 (fig.) ; Ferns, 290 ; Lycopo- 

 dium, 315 ; Mosses, 269, 275 ; 

 Selaginella, 315. 



Forked venation, 292, 322. 



Fossil plants, 310, 312 (fig.), 313, 

 314 (fig.), 319, 322, 327-33 

 (figs.), 334, 34, 356, 394, 47- 



Foxglove (Digitalis), 48, 363. 



Fragmentation, in Algae, 212, 215 

 (fig.), 216; in Bryophyta, 277. 



Fraxinus excelsior, 120, 122, 128, 

 129. 



Free central placenta, 356 ; nu- 

 clear division, 245, 319, 368. 



Fronds of, Brown Algae, 199-204 

 (figs.) ; Ferns, 289-91 (fig.), 



297 (fig-), 304 (fig-), 305 (fig-), 

 308 (fig.), 309 (fig.). 



Fructose (fruit-sugar), 45, 46, 53, 

 55 ; reactions of, 47. 



Fruit-bodies of, Ascomycetes, 239 

 (fig.), 240 (fig.), 242, 243 (fig.), 

 244 (fig.) ; Basidiomycetes, 

 248, 249 (fig.), 250 (fig.), 251 

 (fig.) ; Lichens, 258 (fig.), 259, 

 260. 



Fruits, 31, 33, 46, 61, 63, 93, 103, 

 370 ; unripe, 60. 



Frullania tamariscini, 272 (fig.). 



Fuchsia, hydathodes of, 146 ; leaf- 

 structure of, 107-10 (figs.). 



Fucus, conceptacles of, 201 (fig.), 

 202, 224, 225 (fig.) ; habitat 

 of, 200 (fig.), 203 ; sexual 

 reproduction of, 220, 221 (fig.), 

 224-6 (fig.), 307 ; thallus of,2OO- 

 202 (figs.), 225 (fig.) ; vegeta- 

 tive reproduction of, 216. 



