500 



/XD£A\ 



Fossombronia, antheridium, 



141 ; thallus, 145. 

 Fourcroya, pollen, 369 ; 



style, 379- 

 Fovea (Isoetes), 289. 

 Foveola (Isoetes), 289. 

 Fovilla, 368. 

 Fragaria, runners, 451 ; style, 



379- 



Francoeae, 470. 



F'rangulineae, 470. 



Frankeniaceae, 469. 



Fraxinus excelsior, poly- 

 gamy, 347. 



Frenela, 339; fruit, 329; 

 phyllotaxis, 322; seed, 331. 



Frenela verrucosa, 330. 



Freshwater Bangiaceae, 77 

 note. 



Freshwater Diatoms, 17 note. 



Fritillaria, nectary, 307. 



Fritillaria imperialis, lateral 

 shoots, 433 ; nectaries, 

 381. (Fig. 358.) 



Frondose Hepaticae, 145. 



Frullania, branching, 156; 

 capsule, 152 ; germination, 

 146, 164; vegetative body, 



145- 



Frustulia saxonica, auxo- 

 spores, 19. 



Fruticose Lichens, 115. 



Fucaceae, 69, 70 ; fertilisa- 

 tion, 70; propagation, 71 ; 

 thallus, 70. 



Fucodium, 70, 72. 



Fucus, 65, 70 ; lertilisation, 

 6; propagation, 71 ; thal- 

 lus, 70. 



Fucus nodosus, 72. 



Fucus platycarpus, 72. (Fig. 



44.) 

 Fucus serratus, 72. 

 Fucus vesciculosus, 72. (Fig. 



45.) 



Fumago, 109. 



Fumaria, flower, symmetry, 

 425. 



Fumariaceae, 469 ; floral for- 

 mula, 459 ; nectary, 307. 

 (Fig. 345-) 



Funaria, rhizoids, 171 ; spo- 

 rogonium, 180; stem, 

 167. 



Funaria hygrometrica, cap- 

 sule, 188; embryo, 178; 

 male organs, 174; peri- 

 stome, 188 ; protonema, 

 171, 173 ; underground 

 buds, 172; vegetative pro- 

 pagation, 171. (Figs. 116, 

 127, 128, 130, 131, 132, 

 142, 144, 145, 146.) 



Fundamental tissue, 3 note. 



Fungi, 80 ; arrangement, 83 

 hyphae, 82 ; mycelium 

 82 ; physiology, 80 ; pro- 

 pagation, 82 ; rhizoids, 82 

 saprophytes and parasites 

 81 ; sclerotia, 82 ; thallus 

 81. 



Funicle, 381, 420. 



Funiculus, 304. 



Funkia cordata, Figs. 288, 

 318, 322. 



Funkia ovata, adventitious 

 embryos, 401. (Figs. 289, 

 290, 334.) 



Gagea, endosperm, 441 ; in- 

 florescence, 409 ; pollina- 

 tion, 307. 



Gametes, 5,27,31,40,42; mo- 

 tile gametes distinguished 

 from zoogonidia, i i. 



Gamopetalae, 471. 



Gamopetalous, 351. 



Gamophyllous, 352. 



Gamosepalous, 351. 



Gardeniaceae, 472. 



Garidella, flower, 421. 



Gasteromycetes, 137. 



Gaura,anther-cells, 3 69,wo/f 2 . 



Gelatinous Lichens, 116. 



Gelidium, 75. 



Gemmae, 174. 



Gentiana, fruit, 428. 



Gentianeae, 471. 



Geoglossum, 112. 



Gcraniaceae, floral diagram, 

 419; flower, 423; pollen- 

 tube, 367. 



Geranieae, 469. 



Geranium, fruit, 427 ; root, 

 401 ; stamens, 359. 



Germinal vesicle, 389, «o/f 4. 



Gesneraceae, 471 ; nectary, 

 381 ; staminal whorl, 360 ; 

 symmetry of flower, 424. 



Gingko, 339; branching, 

 320; classification, 339; 

 drupe, 338 ; embryo, 311, 

 338 ; fertilisation, 385 ; 

 female flowers, 326, 331 ; 

 floral axis, 323 ; flowers, 

 323 ; fruit, 311, 339 ; ger- 

 mination ,319; leaves, 322; 

 male flowers, 324 ; ovules, 

 385 ; pollen-sacs, 325; sto- 

 mata, 345 ; vascular bun- 

 dles, 342. (Fig. 251.) 



Gingko biloba. Fig. 251. 



Giraudiasphacelarioides, 66 ; 

 conjugation of gametes,67. 



Girdles (Diatomaceae), 17. 



Gladiolus, embryo-sac, 441 ; 

 exine,367; synergidae,389. 



Glans, 428. 



Gleba, 138, 139. 



Gleditschia, lateral shoots, 

 451. 



Gleichenia, fundamental tis- 

 sue, 220. 



Gleicheniaceae, 194, 228; 

 prothallium, 200 ; spores, 

 198. 



Globularia, endosperm, 461. 



Globularieae, 471. 



Globules (Characeae), 52. 



Glochidia, 239. 



Gloenoapsa, 22. (Figs. 1 1,84.) 



Gloeotheca, 23. 



Glumaceous (perianth), 440. 



Glumiflorae, 444. 



Glyptostrobus, 339. 



Gnetaceae, 309,340 ; embryo, 

 341; flowers, 340; fruit, 

 341 ; habit, 340 ; inflor- 

 escence, 340; seed, 341. 



Gnetum, 340 ; growth in 

 thickness, 344 ; vascular 

 bundles, 342. 



Gnetum scandens, 344. 



Gnetum Thoa, 342. 



CJomphonema constrictum, 

 18. (Fig. lo.j 



Gongrosira, 34. 



Gonidangmm, 91. 



Gonidia, 10, 82, 83, 114. 



Gonidial layer (Lichens), 1 15, 



Gonidiophores, 103, 131. 



Gonium, 38. 



Gonophore, 358. 



Gonoplasm (Pcronosporeae), 

 95 and note 2. 



Gossypium, seeds with hairs, 

 430. 



Gramineae, 444 ; branching, 

 411,433; vascular bundles, 

 308 ; embryo, 431; endo- 

 sperm, 441 ; flower, 439 ; 

 fruit, 426, 428 ; funicle, 

 381 : germination, 431 ; 

 inflorescence, 407 ; lateral 

 roots from embryo, 401 ; 

 ligula, 436 ; ovules, 382, 

 441 ; perianth, 351 ; phyl- 

 lotaxis, 435, 436 ; plumule, 

 431 ; pollen, 368 ; roots, 

 400 ; stem, 442, 444 ; 

 stigma, 380. 



Grape-vine, inflorescence, 

 407. 



Graphideae, 119, 124. 



Graphis, 119. 



Graphis elegans. Fig. 72. 



Graphis scripta, 119. 



Gratiola, floral diagram, 414. 



Gratiola officinalis. Fig. 343. 



Green Algae. See Chloro- 

 phyceae. 



Grimmia, stem, 167. 



