TABLE OF CONTENTS 



CHAPTEE XXVIII 

 OYCADALES (Recent). Pp. 1—34. 



CHAPTER XXIX 

 PTERIDOSPERMEAE (continued from Volume ii.). Pp. 35—85. 



PAGE 



I. LYGINOPTEKIDEAE 35-85 



Lyginopteris 35-70 



Tdangium 54, 55 ; Lagenostoma 55-64 ; Lagenospermum 

 64-66 ; Pterispermostrohibs 66, 67. 



Heterangium . 70-8S 



SphaeroUoma 78-81. 



CHAPTER XXX 



II. MEDULLOSBAE 86-165 



i. MeduUosa 86-109, 156-163 



Ifyeloxylon lOG-110 ; Neuropteris 110-117; Alethopteris 

 a.nd Linopteris 113 ; Trigonocarpus 117-124:; Codono- 

 theca 124-126 ; Sohiitzia 126-128 ; Whittleseya 128- 

 131 ; Dolerophyllum 132-139 ; Ottohana 139-141 ; 

 Strobilites 141, 142. 



ii. Colpoxylon 142-145 



iii. Rhexoxylon 146-149 



iv. Sutcliffia . . . . / 149-156 



General coiisiderations suggested hy the anatomical features 



of Medullosa 156-163 



II. A. STBLOXYLEAE 163-165 



Steloxylon 163-165 



CHAPTER XXXI 

 PTERIDOSPERMEAE. (Foliage and seeds.) Pp. 166—174. 

 Pecopteris Plucheneti 166-168 ; Eremqpteris artemisaefolia 

 169-172; Wardia 172, 173; Adiantites bellidulus and 

 Lagenospermum Arberi 173, 174. 



