288 
Leaf, margins of, 200 
merenchyma, 172, 211 
nodes, 65 
sheath, 66 
skeleton, 213 
spectrum, 101 
stalk, 65 
Leather, formation of, 139 
Leaves, 64 
bifacial, 210 
centric, 210 
floral, 67 
foliage, 66 
insertion of, 65 
position of, 60 
Legume, 84 
Legumen, 84 
Lemery, 5 
Lenticels, 241 
Leptom, 159, 217 
Levant trade in the middle ages, 25 
trade of Venice, 26 
Liber, 62 %: 
Libriform, 217° . 
cells, 199, 217, 223 
Lichen-starch, 170 
Lichenin, 123, 170 
igna, 61 
Lignification, 160 
Lignified membrane, 160 
Lignin, 159, 160 
Ligula, 65 
Linseed mucilage, 166 
Liquid paraffin, 275 
Literature, 46 
Lithipm, 145 
Loeulicidal, 85 
Lodicule, 70 
Lorenzo de’ Medici in Florence, 29 
Lumen, 94 
Lysigenic balsam-passages, 170, 251 
gum-passages, 251 
oil-passages, 263 
passages, 248 
receptacles, 248 
Macer Floridus, 25 
Magnesium, 144 
Maize starch, 112, 116 
Male organs of the plant, 70 
Manganese, 145 
Mannite, 143 
-Maranta aie 115 
¥ 
INDEX. 
Marco Polo, 20, 30 
Marino Sanudo, 29 
Martius, 5 
Masudi, 23 
Mechanical elements, 217 
system of tissue, 194 
Medicinal substance, 6 
Medico-pharmaceutical botany, 46 
descriptive works, 47 
Medico-pharmaceutical zoology, 48 
Medulla, 223 
Medullary cells, 172 
crown, 234 
rays, 223 
rays, secondary, 228 
sheath, 234 
Melitose, 142 
Membrane, cellulose, 159 
conversion into gum, 166 
lignified, 159 
metamorphosis of, 166 
suberized, 159 
Mercurous nitrate, 277 
Merenchyma, 172 
leaf, 172, 211 
Mericarps, 83 
Meristem, 174 
zones, 175 
Mesocarp, 82 
Mesocarpium, 82 
Mesophlceum, 62 
Mesophyll, 211 
Mestom, 217 
Mesue, 23 
Metamorphosis of membrane, 166 
Methyl green, 278 
violet, 278 
Micelle, 118 
Micro-chemical reagents, 268 
Micropyle, 89 
Microscope, 48, 93 
use of, 48 
Microscopical preparations, 46 
structure, 16 
Microsomes, 94 
Middle bark, 62, 233 
lamella, 162, 173 
layer, 82 
Milk juice, 140 
sugar, 142 
Millon’s reagent, 277 
Mineral constituents, 144 by 
constituents of plants, 144, 145 
Monadelphous, 71 nes 
