CONTENTS 
CHAPTER 
Economic importance of alge 
CIAssELungi 6. >> s 
Subclass Phycomycetes 
Subclass Ascomycetes . 
Subclass Basidiomycetes . 
Economic importance of fungi 
lacsrlichens 850. 6 
XI. Division Brrorvuyra 
General description 
Class Hepaticae 
Order Ricciales 
Order Marchantiales 
Order Jungermanniales 
Order Anthocerotales 
Class Musci 
XII. Division PreriporHyra 
General description 
Class Filicineae (ferns). . . 
Class Hquisetineae (horsetails) 
Class Lycopodineae (club mosses) 
Order Lycopodiales 
Order Selaginellales 
XUI. Division Spermarorvuyra. 
General description 
Class Gymnospermae . 
Order Cycadales 
Order Ginkgoales 
Order Coniferales 
Class Angiospermae 
XIV. PLANT GEOGRAPHY. 
USC ea i 
Xl 
PAGE 
542 
545 
j44 
dol 
309 
363 
366 
367 
367 
368 
372 
374 
O77 
379 
380 
383 
3835 
385 
398 
399 
399 
400 
403 
403 
407 
407 
417 
420 
428 
433 
