CHAPTER IX.. =pteridophyta (vascular Cryptograms).= Pp. 242–294.

=PTERIDOPHYTA (VASCULAR CRYPTOGRAMS).= Pp. 242–294.

I. =EQUISETALES (RECENT)= 244–254 EQUISETACEAE 244–254 Equisetum 246–254.

II. =FOSSIL EQUISETALES= 254–294 A. EQUISETITES 257–281 Equisetites Hemingwayi 263–264. E. spatulatus 264–266. E. zeaeformis 266. E. arenaceus 268–269. E. columnaris 269–270. E. Beani 270–275. E. lateralis 275–279. E. Burchardti 279–280. B. PHYLLOTHECA 281–291 Phyllotheca deliquescens 283–284. P. Brongniarti 286–287. P. indica and P. australis 287–289. C. SCHIZONEURA 291–294 S. gondwanensis 292–293.