434 



INDEX 



Leaf of, Conifers, 334-7 (figs.) ; 

 Cycads, 322, 323 (fig.)/ 324 

 (fig.) ; Equisetum, 310, 311 

 (fig.) ; Ferns, 290-92 (figs.), 

 303 ; foliose Liverworts, 271 

 (fig.), 272 (fig.) ; Lycopodium, 

 314, 315, 316 (fig.) ; Lygin- 

 opteris, 328,* 329 (fig.) ; Mosses, 

 274, 275 (fig.) ; Selaginella, 

 316, 317 (fig.), 318. 

 Leaf-fall, 59, 141, 142 (fig.). 

 Leaf -gaps (of Ferns), 294 (fig.), 295. 

 Leaf -scars, 142. 

 Leaf-stalk. See Petiole. 

 Leaf-structure of, Alpines, 170; 

 aquatics, 91, 92, 93, 101, 172, 

 I 77 (fig-) I Bracken (Pteris), 

 148, 149 (fig.), 169 ; Brooklime 

 ( Veronica beccabunga), 160 (fig.); 

 Catharinea undulata, 276 ; 

 Clubmoss (Lycopodium), 315 ; 

 Conifers, 341-4 (figs.) ; Corn 

 Cockle (Agrostemma githago], 

 no ; Crowberry (Empetrum 

 nigrum], 163 (fig.) ; Cycads, 

 322 ; Dicotyledons, 93, 98, 

 107 et seq. (figs.) ; Elder 

 (Sambucus), no, in (fig.) ; 

 Enchanter's Nightshade 

 (Circced), 146 ; Euphorbia amyg- 

 daloides, no; evergreens, 

 II2 > 335 I Ferns, 295, 298 

 (fig.) ; Ficus elastica, 95, no; 

 Fuchsia, 107-10 (figs.), 146 ; 

 Ground Ivy (Nepeta glechoma], 

 94 (fig.) ; Hakea, 166 ; Heather 

 (Calluna), 162, 163 (fig.) ; Holly 

 (Ilex aquifolium), 92 (fig.), 95, 

 IIT, 113, 160 (fig.) ; Horn- 

 wort (Ceratophyllum), 172 ; 

 House-leek (Semper vivum), 

 in ; Tee-plant (Mesembryan- 

 themum), 167 ; Iris, 96, 97 

 (fig.), 115, 116, 160 ; Jointed 

 Rush (Juncus articulatus] , 165 

 (fig.), 166; leafy Liverworts, 

 273 ; Lesser Celandine (Ficaria 

 verna), 145, 146 (fig.), 147 (fig.) ; 

 Lyginopteris, 329, 330 ; Male 

 Fern (N ephr odium) , 298 (fig.) ; 

 Marsh Marigold (Caltha), 146 ; 

 Monocotyledons, 93, 98, 112 ; 

 Mosses, 112, 275 (fig.), 276; 

 Myrtle (Myrtus), 151 ; Nettle 

 (Urtica), 38 (fig.) ; Oleander 

 (Nerium oleander), 110, 161 

 (fig.) ; Onion (Allium), 94 

 (fig.), 97 (fig.) ; Pinus, 152, 



1 66, 343, 344 (fig.) ; Prickly 

 Saltwort (Salsold), 166; 

 Psamma arenaria, 92, 163, 

 164 (fig.) ; Ranunculus auri- 

 comus, 92 (fig.) ; Rue (Ruta], 

 151 ; St. John's Wort (Hyperi- 

 cum], 151 ; Sea-blite (Suceda), 

 1 66 ; Selaginella, 318; shade- 

 plants, 91, 95, 1 68, 169 (fig.) ; 

 Silver Goosefoot (Obione por- 

 tulacoides], 94 (fig.) ; Sphag- 

 num, 275 (fig.), 276 ; Stone- 

 crop (Sedum), 166 ; succulents, 

 1 1 6, 1 66 ; Wallflower (Cheir- 

 anthus cheiri), in ; Water 

 Buttercup (Ranunculus aqua- 

 tilis}, 177 (fig.) ; Water Star- 

 wort (Callitriche), 177; Wild 

 Strawberry (Fragaria), 146; 

 Yellow Dead-nettle (Lamium 

 galeobdolon), 168, 169 (fig.) ; 

 Yellow Pimpernel (Lysimachia 

 nemorum), 160 (fig.) ; Yew 

 (Taxus), 341, 342 (fig.). 



Leaf -traces of, Angiosperms, 86, 

 114; aquatics, 173; Ferns, 

 294 (fig.), 295 ; Lyginopteris, 

 329, 330 (fig.). 



Leafy Liverworts ( J ungermanniales) . 

 See Foliose Liverworts. 



Leathery leaves, structure of, 160. 



Leguminosae, 30, 72, 371 ; root- 

 nodules of, 267, 268. 



Lemna, 112. 



Lemon (Citrus limonum), 60. 



Lenticels, 77, 139, 140 (fig.), 141. 



Lepidodendron, 312 (fig.), 314 (fig.), 



315, 407- 



Leptothrix, 268. 



Lesser Celandine (Ficaria verna}, 

 embryo of, 372 ; hydathodes 

 of, 145, 146 (fig.), 147 (fig.). 



Lettuce (Latuca], 53. 



Leucin, 52. 



Leucobryum, 277. 



Leucocytes and Bacteria, 265. 



Leucoplasts, 41, 43. 



Levulose, 45. 



Lianes, structure of, 134. 



Lichens, 407 ; habitat of, 257, 

 258 ; reproduction of, 258 

 (fig.), 260 (fig.), 261 ; structure 

 of, 259, 260 (fig.) ; thallus of, 

 258 (fig.)- 



Lid (of Moss-capsule), 284, 285 

 (fig.), 286. 



Life-histories. See Reproduction. 



Light and, anthocyanin, 63 ; chloro- 



