SYNOPSIS OF FAMILIES. 
GROUP I. — ARCHEGONIATaE (Embryophyta Asiphonogama). 
Division I. — Pteridophyta (Ferns and Fern Allies). 
Class I. — Filicales. 
Order 1 . — Ophioglossales. Page 
Family 1. — Ophioglossaceae, Bitter 127 
Order 2 . — Marattiales. 
Family 2. — Marattiaceae, Bitter 127 
Order 3. — Filicineae (Ferns). 
Family 3. — Osmundacese, Diels 127 
Family 4. — Gleichemapeae, Diels 127 
Family 5. — Hymenophyllaceae, Sadebeck 127 
Family 6. — Schizaeaceae, Diels 127 
Family 7. — Cyatheaceae, Diels 127 
Family 8. — Polypodiaceae, Diels 127 
Order 4. — Hydropteridineae. 
Family 9. — Marsiliaceae, Sadebeck 128 
Class II. — Equisetales (Horse-tails). 
Order 1. — Eu-Eqttisetales. 
Family 10. — Equisetaceae, Sadebeck 128 
Class III. — Lycopodiales (Club-mosses). 
Order 1. — Lycopodineae. 
Family 11. — Lycopodiaceae, Pritzel 128 
Order 2 . — Selaginellineae. 
Family 12. — Selaginellaceae, Hieronymus 128 
GROUP II. — PHANEROGAMiE (Embryophyta Siphonogama or Seed-plants) 
Division 1 . — Gymnospermae. 
Class IV. — Cycadales (Cycads). 
Family 13. — Cycadaceae, Lindl 128 
Class V. — Conifers (Conifers). 
Family 14. — Taxaceae, Lindl 128 
Family 15. — Pinaceae, Lindl 129 
Envision 2. — Angiospermje. 
Class VI.— Monocotyledons. 
Order 1. — P and an ales. 
Family 16. — Typhaceae, J. St. Hil 129 
Order 2. — Helobieje (Fluviales). 
Family 17. — Potamogetonaceae, Engl 129 
Family 18. — Najadaceae, Lindl 129 
Family 19. — Aponogetonaceae, Engl 129 
Family 20. — Hydrocharitaceae, Aschers 129 
Order 3 . — Glumiflor^e. 
Family 21. — Gramineae ; B. Juss 129 
Family 22. — Cyperaceae, J. St. Hil 132 
Order 4 . — Principes. 
Family 23. — Palmae, Linn 133 
Order 5 . — Spathiflorae. 
Family 24. — Araceae, Neck 133 
Family 25. — Lemnaceae, Dumort 133 
