252 



INDEX 



Leaves, Lyginodendron, 104 



Neuropterideae 113 



Primofilices, 147 



Selaginella, 161, 162 



Sphenophyllum, 213 

 Lepidocarpon, 186-188 



micropyle, 187 



prothallus, 188 



seeds, 186 

 Lepidodendrese, 174-189, 191 



and Isoetes compared, 189 



cones, 182 



fructifications, 178 



heterospory, 182 



leaves, 178, 180, 181 



ligule, 178 



megaspores, 185 



microspores, 184 



roots, 179, 181 



secondary growth, 180 



sporangia, 183 



stem, 177, 179 



Lepidodendron, 177, 178, 179, 

 183, 234, 235 



dimensions, 176 



elegans, *176 



VeUheimianum prothallus, 



*185 

 Ligule, 162 



Isoetes, 166 



Lepidodendrese, 177 



Miadesmia, 170 



Selaginella, 163 

 Lily, 47 



family, 39, 43 

 Liverworts, 222, 226, 227 

 Lomaria, 60 

 Lycopodiaceae, 156-160 

 Lycopodium, 135, 137, 157 



davatum, 157, 158 



cones, 157 



germination, 158 



inundatum, 157, 159 



prothallus, 158-174 



Lycopodium, root, 157 



stem, 157 



Selago, 157, 158 



sporangia, 158 



sporophylls, 157 

 Lycopods, 127, 156, 221 



evolution of, 156, 191, 192 



heterosporous, 160-174 



homosporous, 156-160 

 Lyginodendrese, 111 

 Lyginodendron, 153, 233 



fertilisation, 109 



glands, 107 



leaves, 104 



oldhamium, 103-111, *105 



pollen-sacs, 110 



roots, *105 



seed, *105, 107, *108, 126 



stem, 103 



Macrozamia, 59 



Moorei, *61 



spiralis, *64 



stem, 62, 63 

 Magnolia, 43 

 Magnoliacese, 94 

 Maidenhair-tree, 57, 131 



spermatozoids, 71 

 Mallow, 44 

 MaraUia, 100 



synangium, 150, *150 

 Marattiaceae, 84, 140, 148- 

 155 



leaf, 149 



Mesozoic, 151 



Palaeozoic, 151-154 



roots, 149 



sporangia, 150 



stem, 149 



synangia, 150, *150, 152 

 Marattiales, 154 

 Mechanical tissue, 234 

 Medullary rays, 50 

 Megasporangium, 124 



