460 
INDEX 
Leaf venation, anastomosing, 159 
furchate, 159 
palmate, 159 
parallel, 159 
pinni, 159 
reticulate, 159 
Leaves, bifacial, 172, 173 
binate, 166 
bipinnate, 123, 126 
biternate, 166 
bract, 156 
bracteolar, 155 
centric, 172 
compound, 161 
palmately, 165 
pinnately, 165 
convergent, 169, 172 
decompound, 166 
development of lamina of, 169 
dorso ventral, 169 
hydrophytic, 169, 172 
mesophytic, 169, 171 
umbrophytic, 169, 170 
xerophytie, 169, 171 
foliage, 156 
Leaves, imparipinnate, 165 
interruptedly pinnate, 165 
lyrate, 165 
origin and development of, 
156 
palmate, 165 
paripinnate, 165 
pinnate, 165 
primordial, 156 
scale, 156 
simple, 161 
stomata of, 173 
ternate, 166 
trifoliate, 166 
types of Angiospermous, 155 
xerophytie, 169, 172 
Lecanora, 281 
Lechea, 369 
Legume, 206 
Leguminosae, 341 
placentation in, 197 
root tubercles of, 132, 133 
Lemon, fruit of, 209 
Lenticels, 146 
Leptandra, 393 
Leptome, 112 
Leucoplastids, 69, 76 
Levisticum, 378 
officinale, 378 
Levulose, 74 
Lichens, 280, 282 
Licmophora, 239 
Life history, of an angiosperm, 53, 58 
of aspidium, 33, 45 
of black mold, 248, 250 
of claviceps purpurea, 265, 267 
of fern, 33, 45 
of gymnosperm, 45, 53 
of moss, 286, 287 
of mushrooms, 274, 278 
of rust, 269, 271 
of smut, 267 
Lignin, 97 
Lignocellulose, 98 
Ligule, 168 
Lilac, 381 
Liliaceae, 301, 303 
Liliales, 301 
Lilium, 301 
Lily Family, 301 
Lima bean, histology of, 217, 218 
Limb, 184 
Limonis Cortex, 350 
Linaceae, 346 
Linaria, 189, 392, 393 
corolla of, 187 
Linden Family, 363 
stem, 147 
Linin, 71 
Linnaeus, 4 
Linum, 347 
usitatissimum, 347 
Lipase, 96 
