CHAPTER XXX

II. =MEDULLOSEAE= 86–165 i. _Medullosa_ 86–109, 156–163 _Myeloxylon_ 106–110; _Neuropteris_ 110–117; _Alethopteris_ and _Linopteris_ 113; _Trigonocarpus_ 117–124; _Codonotheca_ 124–126; _Schützia_ 126–128; _Whittleseya_ 128–131; _Dolerophyllum_ 132–139; _Ottokaria_ 139–141; _Strobilites_ 141, 142. ii. =Colpoxylon= 142–145 iii. =Rhexoxylon= 146–149 iv. =Sutcliffia= 149–156 _General considerations suggested by the anatomical features of Medullosa_ 156–163

II. =A. STELOXYLEAE= 163–165 =Steloxylon= 163–165