Xll CONTENTS. 



Class IV. Musci (Mosses) "332 



Order 1. Sphagnaceae t '.-.;.. . . 340 



Order 2. Bryinese 342 



GEOUP III. PTEKIDOPHYTA (VASCULAR CEYPTOGAMS) . 346 



Class V. Filicinae ; y . . . 854 



Sub-Class. Eusporangiatse 



Homosporese. 



Order 1. Ophioglossacese ........ 354 



2. Marattiacese 355 



Heterosporeae. 



3. Isoetacese 355 



Sub-Class. Leptosporangiatae 



Homosporeae (Filices) . t . . 358 



Order 1. Hymenophyllaceae . . . r .371 



2. Polypodiaceae . .... . . . 371 



3. Cyatheaceae . . . . . . . .372 



4. Gleicheniaceae 372 



5. Schizseacese . ... . . ... .372 



6. Osmundaceae 372 



Heterosporese (Hydropterideae) . . 373 



7. Salviniacese 380 



8. Marsileacese . ,'' , . . .. . 380 



Class VI. Equisetinae \ , '. . . 380 



Order 1. Equisetacese 380 



Class VI I. Lycopodinae. 386 



Sub-Class. HomosporeaB 



Order 1. Lycopodiacese . . . . . .386 



2. Psilotacese 389 



Sub-Class. Heterosporese 



Order 3. Selaginellacese 389 



PHANEROOAMIA (SPERMAPHYTA) . . .394 



GEOUP IV. GYMNOSPEEM^E 419 



Class VIII. Gymnospermae 



Order 1. Cycadacese 431 



2. Coniferse 432 



3. Gnetacese 437 



GEOUP V. ANGIOSPEEMJE 438 



Class IX. Monocotyledones 476 



Sub-Class I. Spadiciflorse 482 



COHORT I. ARALES 482 



Order 1. Aracese 482 



2. Lemnacese 484 



3. Typhacese 484 



COHORT II. PALMALES 484 



Order 1. Palmacese 484 



Sub-Class II. Glumiflorse 486 



COHORT I. GLUMALES 486 



Order 1. Graminacese 486 



2. Cyperaceae 492 



