INDEX 



681 



Sporangia and spores of Spkenophyl- 

 lum, *ioi, *io2, 103, *io4, 

 *io6, 107, 108, *IOQ, *no, 



III, *II2, *II3 



of Stauropteris, 337, * 33 8, * 3 39 



Sturiella, *28o, 286 



Zygopteris, 319, *320, 323 

 Sporangiophore, 49 



in Archaeocalamites, 70 



Bowmanites Romeri, 109 



Calamarieae, 49 



Calamostachys, 53, 60 



Cheirostrobus, 117, 120 



Cingularia, 68 



Palaeostachya, 62, 64, 66 



Sphenopkyllum, 102, 105, 111 

 morphology, 621 - 624, 631, 



633 



Sporangiophoric Pteridophyta, 641 

 Sporangium, "bilocular," of Crosso- 



theca, 399 

 Sprecher, A., 612 

 Sprengel, K. , 306 

 Staarsteine, 296 

 Stachyotaxus , fructification, 610 

 Staly bridge, 428 

 Stamens, Araucarieae, 655 



Bennettiteae, 644, 648 



Cycadella wyomingensis , 589 



Cycadeoidea, 579-589 



dacotensis, 580, '581, ^583, 



*S86, * 5 8 7 

 ingens, 580, *s84, "585 

 Reichenbachiana, 589 

 Staminate disc, 588 

 Stangeria, 273, 366, 577 



paradoxa, *3&5 

 Stauropteris, 336-340, 341, 640 



bumtislandica, 336 



oldhamia, 336, *337, *338, *339, 

 506 



anatomy, 336, 337 



sporangia, 337 



spores, 339 

 Stem, Anachoropterzs, 324 



Archaeocalamites, 71 



Artkrodendron, 34 



Asterochlaena, 325 



Bennettites, 560-566 



Bothrodendron, 200 



Botrychioxylon, 318 



Botryopteris, 326, 327 



Calamarieae, 19-38 



Catamites, 19-33 



Calamodendron, 34 



Stem, Calamopitys, 476-482 



Cladoxylon, 496-498 



Co/poxy Ion, 446 



Cordaites, 525-530 



Cycadoxylon, 483-487 



Dadoxylon, 517 



Grammatopteris, 333 



Heterangium, 403-409, 411-414 



Lepidodendron, 133-135 



Lepidophloios, 154 



Lyginodendron, 358-373 



Medullosa, 429-446 



Megaloxylon, 474-476 



/V^y, 5*4-5 1 7 



Poroxylon, 501-507, 511, 512 



Protocalamites , 37 



Protopitys, 494-496 



Psaronius, 294-304 



Pseudobornia, 123 



Ptychoxylon, 487-491 



Rachiopteris cylindrica, 33 



Sigillaria, 



Sphenopkyllum, 204-231 



Stenomyelon, 498 



Sutcliffia, 447-450 



Tubicaulis, 334 



PKa&rAz'a:, 605 



Zygopteris, 3°7"3*3> 3*7- 3 l8 

 Stenomyelon tweedianum, 498 

 Stenzel, K. G. , 297, 298, 300, 306, 



312, 313, 443, 463, 467 

 Stephanian flora, 268 

 Stephanospermum, 81, 456, w 458, 



*459. 544 

 akenioides, 456 

 Sternberg, C. von, 210 

 Sternbergia, 523, 524, 605 

 Sterzel, J. T., 437, 443 

 Stigmaria, 141, 201, 205, ^258 

 anatomy, 242-259 

 habit and external characters, 237- 



242 

 morphology, 259-262, 635 

 Hcoides, *2o6, *238, 240, ^243, 

 244, *245, *247, *25o, ^252, 

 253. ^54, *255, *256, 259 

 Jlexuosa, 257 

 clay, 241 

 Stigmariopsis, 257 

 Stipitopteris, 303 

 Stolon of Neuropterideae, 463 

 Stomata, 535 



Lepidodendron esnostense, 160 

 L, Hickii, 160 

 Sphenopkyllum, 105 



