CONTElirTS 



XI 



CHAPTER XXXV 

 PALAEOZOIC GYMlSrOSPERMOUS SEEDS. Pp. 300—365. 



I. Lagenostomales 



Physostoma 309-312 ; Conostoma 313-316 ;Sphae- 

 rostoma 316 ; Lagenostoma 316 ; Gnetopsis 

 317, 318. 



II. Trisonocarpales 



Trigonocarpus 319-321 ; Tripterospermum 321 

 Ptychotesta 321 ; Hexapterospermum 321-323 

 Polypterospermum 323 ; Pachytesta 323-326 

 Stephanospennum 326-329 ; Polylophospermum 

 329, 3.30 ; Codonospermum 330, 331 ; Aetheo- 

 testa 331, 332 ; Eriotesta 332 ; Gaudrya 332. 



III. Cardiocarpalbs 



Cardiocarpus 338-340 ; Cyclospermum 340, 341 ; 

 Cycadinocarpus 341 ; Bhabdocarpus and Bhab- 

 dospermum 341-345 ; Mitrospermum 345, 346 ; 

 Diplotesta 346 ; Leptocaryon 346, 347 ; Taxo- 

 spermum 347 ; Compsotesta 347, 348 ; Sama- 

 ropsis 348-354 ; Cordaicarpus 354^356. 



IV. Miscellaneous Seeds 



i. Hexagonocarpus 356, 357 ; Decagonocarpus 357; 

 Polypterocarpus 357, 358 ; Rhynchogonium 

 358-360 ; Boroviczia 360 ; Diplopterotesta 360, 

 361 ; Musocarpus 361 ; Holcospermum 361-363. 



ii. Malacotesta 363 ; Thysanotesta 364 ; Carpo- 

 lithus 364, 365 ; Microspermum 365. 



CHAPTER XXXVI 

 CYCADOPHYTA (Fossil). Pp. 366—420. 



BENNETTITALES 

 Cycadeoidea 

 Cycadella . 

 Amphibennettites 

 Vectia . 



PAGE 



308-318 



318-332 



332-356 



356-365 



367-420 

 367-417 

 417, 418 

 418 

 419, 420 



CHAPTER XXXVII 



BENNETTITALES {continued) 421-477 



Williamsonia 421-463 



Wielandiella 463-467 



Williamsoniella 467-473 



Cycadocepbalus 473-475 



Weltrichia 475-477 



