INDEX 



455 



Lycopodhim, archegoniuni, 229 



embryo, 230 



gametophyto, 226, 227 



sporangium, 225 



stele, 221, 222 



stem tip, 219 

 Lycopsida, 3. 4, 218 

 Lyginopteris, 312-314 

 Lynybya, 11 



M 



Macrocystis, 78 



Macrozamia, megasporophyll, 326 



Magnolia, flower, 374 



stem, 370 

 Malvales, 403 

 Marattia, leaflet, 272 



root, 271 

 Marattiales, 270 



embryo, 274 



gametophyte, 273 



sporangium, 272 



sporophyte, 270 



summary, 274 



vascular anatomy, 270 

 Marchantia, air chamber, 163 



air pore, 163 



antheridium, 165, 167 



archegoniuni, 166, 168 



cupule, 164 



embryo, 166, 171 



female receptacle, 166 



gemma, 164 



male and female plants, 164 



male receptacle, 165 



sperm, 165 



sporophyte. 172 



thallus, 163 

 Marchantiales, 161 



gametophyte, 162 



sex organs, 164 



sporophyte, 168 



suinmary, 172 

 Marsilea, 293 



female gametophyte, 298 



male gametophyte, 297 



rhizome, 294 



sporangia, 295 



sporocarp, 296 

 Marsileaceae, 293 



embryo, 297 



gametophytes, 296 



sporocarp, 294 



sporophyte, 293 

 Massula, 301, 303 

 Megaceros, 189, 190 



Megasporangium, 233 



Anentoiic, 385 



Azolla, 301 



Cycadolilicalo.s, 311 



Frit ilia rid. 390 



Isoetes. 244 



Marsilca, 295 



Salix, 384 



Salvinia, 302 



Selaginella, 233, 235 

 Megaspore, 233 



Anemone, 385 



Azolla, 301 



Ginkgo, 337 



Isoetes, 244 



Marsilea, 298 



Pinus, 348 



Salvinia, 302 



Selaginella, 233, 235 

 Megasporocarp, 300 



Azolla, 301 



Salvinia, 302 

 Megasporophyll. 233 



Cycadales, 325 



Isoetes, 244 



Selaginella, 233 

 Merismopedia, 9 

 Mesarch, 210 



Metachlamydeae, 316, 404 

 Metaxylem, 210 

 Micrasterias, 50 

 Micropyle, 312, 323, 326, 386 

 Microsphaera, 127, 128 

 Microsporangium, 233 



Angiospermae, 378 



Azolla, 301 



Bennettitales, 317 



Cycadofilicales, 311, 313 



Ginkgoales, 336 



Gnetales, 355 



lochroma, 380 



Isoetes. 244 



Lilium, 379 



Marsilea, 295 



Pinus, 345 



SalviTiia, 302 



Selaginella, 233-235 



Zamia, 324 

 Microspore, 233 



Azolla. 303 



Dioon, 328 



Isoetes, 244 



Marsilea, 297 



Pinus, 348 



Selaginella, 233, 235 

 Microsporocarp, 300 



Azolla, 301 



LIBRaR 



^ ^ V MASS. 



