460 



PLANT MORFHOLOGY 



Slimo fungi, other, 106 

 Slime molds, 104 

 Solanum, pistil, 382 

 Soredium, 154 

 Sorus, Amjiopteris, 272 



Filicales, 284, 285 



gradate, 28(i 



Marsilea, 295, 296 



mixed, 287 



simple, 285 

 Specialization, 413 

 Sperm, Chnra, 65 



Coleochnete, 43 



Cutler ia, 71 



Didyota, 74 



Dioon, 329 



Dryoptcris, 290 



Equisetum, 256 



Sudor iv a. 30 



f MCMS, 83 



Isoetes, 246 



Laminar ia, 77 



Lycopodium, 288 



Marchantia, 165 



Marsilea, 297 



Monoblepharis, 111 



Oedogoniiwi, 47 



Ophioglosstnn, 269 



Psilotum, 216 



Selaginella, 236 



Sphaeroplea. 56 



Vaucheria, 58 



Fo/toj, 31 



Zaviia, 328 

 Spermatium, Batrachospermum, 90 



Laboulbeniales, 140 



Lichenes, 155 



Nernalion, 88 



Polysiphonia, 91 



Porphyra, 86 



Puccinia, 144 

 Spermatophyta, classes, 309 

 comparison, 408 



evolutionary tendencies, 417 



flower, 410 



general conclusions, 409 



interrelationships, 410 



seed, 409 

 Spermogonium, 143, 144, 155 

 Sphacelaria, 69, 70 

 Sphacelariales, summary, 69 

 Sphaerella, 28 

 Sphaeriales, 140 

 Sphaerocarpales, gametophyte, 173 



sex determination, 175 



sex organs, 174 



sporophyte, 174 



Sphaerocarpales, summary, 176 

 Sphuerocarpua, antlicritlium, 175 



archegoiiium, 176 



sporophyte, 177 

 Sphaeroplea, 56 

 Sphaerolhera, 127-129 

 Sphagnales, 192 



gametophyte, 192 



sex organs, 193 



sporophyte, 194 



summary, 195 

 Sphagnum, antheridhim, 193 



archegonium, 195 



embryo, 196 



gametophyte, 193, 194 



leaf, 194 



sporophyte, 194 

 Sphenophyllales, 248 

 Sphenophyllum, 249, 250, 257 

 Sphenopsida, 4, 247 

 Spirillum, 101 

 Spirogyra, 51-53 

 Sporangiophore, Albugo, 115 



Calamitales, 258 



Empusa, 121 



Equisetum, 254 



Hyeniales, 248 



Plasmopara, 117 



Psilotales, 216 



Rhizopus, 118 



Sphenophyllales, 249 

 Sporangium, Albugo, 115 



Angiopteris, 273 



Azolla, 301 



Chytridium, 109 



Cladophora, 55 



Cutleria, 71 



Cyrtomium, 288 



Didyota, 74 



Edocarpus, 67 



Einpusa, 121 



Equisetales, 253 



Equisetum, 254, 255 



Filicales, 286 



Hyeniales, 248 



Isoetales, 243 



Laniinaria, 77 



Leptosporangiate ferns, 287 



Lycopodiales, 223 



Lycopodium, 225 



Marattiales, 270 



Marsilea, 295 



Monoblepharis, 111 



Olpidium, 109 



Ophioglossales, 265 



Ophioglossum, 267 



Plasmopara, 117 



