CONTENTS. 



PAGE 



INTRODUCTION ...... i 



FIRST SUBDIVISION: VASCULAR CRYPTOGAMS . . . 10 



HETEROSPOROUS VASCULAR CRYPTOGAMS . . . .21 



CLASS I. RHIZOCARPE^E . . . . 21 



,, II. SELAGINELLACE.E . . . . . 38 



ISOSPOROUS VASCULAR CRYPTOGAMS . . . 53 



CLASS III. LYCOPODIACE/E . . . . . -53 



,, IV. FILICES . . . . .... 64 



V. OPHIOGLOSSACE.E . . . . -95 



,, VI. EQUISETACE.*: . . . . . IOO 



FOSSIL VASCULAR CRYPTOGAMS . . . . . .114 



SECOND SUBDIVISION: MUSCINE^E . . . . . 132 



CLASS VII. MUSCI ....... I36 > 



,, VIII. HEPATIC^ . . . . . . . 156 



FOSSIL MUSCINE^E . . . . . . .172 



THIRD SUBDIVISION: CHARACE^ . . . ' . . 173 



CLASS IX. CHARACE/E . . . . . -173 



FOSSIL CHARACE^: . . . . . . . 183 



FOURTH SUBDIVISION : ALG& . . 184 



CLASS X. FLORIDE^: . . . , . . 191 



,, XI. CONFERVOIDE/E HETEROGAM/t . . . . 2IQ 



,, XII. FUCACE.E . . . . . . 228 



,, XIII, PHjEOSPORE/E ...... 237 



,, XIV. CONJUGAT/E . . . . . . 258 



,, XV. CONFERVOIDE/E ISOGAM^ . ... . 272 



,, XVI. MULTINUCLEAT.K . . . . . 280 



,, XVII. CCENOBIE/E . . . . . .29! 



FOSSIL Al.G.-E . . . . . . . 303 



