xii CONTENTS 



PAQH 



Class 10. Basidiomycetes : the Basidia Fungi . . . .463 

 Order 1. Ustilaginales : the Smuts ..... 464 



Order 2. Uredinales : the Rusts 465 



Order 3. Hymenomycetes : the Toadstool Fungi . . 470 



Order 4. Gasteromycetes : the Puffballs . . . .474 



Fungi Imperfect! 476 



CHAPTER XL DIVISION 2. BRYOPHTTA : THE Moss PLANTS . 478 



Class 1. Hepaticse : the Liverworts 479 



Order 1. Kicciales . . . . . . . . 480 



Order 2. Marchantiales 480 



Order 3. Jungermanniales 482 



Order 4. Anthocerotales .483 



Class 2. Musci : the Mosses 484 



Order 1. Sphagnales : the Peat Mosses .... 485 



Order 2. Bryales : the True Mosses ..... 487 



CHAPTER XII. DIVISION 3. PTERIDOPHYTA : THE FERN PLANTS . 492 



Class 1. Filicinese : the Ferns 494 



Order 1. Ophioglossales : the Adder's Tongue Ferns . . 494 



Order 2. Filicales : the Ferns Proper 495 



Order 3. Hydropteridales : the Water Ferns . . .499 



Class 2. Equisetineae: the Horsetails 500 



Class 3. Lycopodinese : the Lycopods . . . . . 503 

 Order 1. Lycopodiales : the Club Mosses .... 503 

 Order 2. Selaginellales : the Selaginellas . . . .506 



CHAPTER XIII.' DIVISION 4. SPERMATOPHYTA : THE SEED PLANTS 512 

 Class 1. Gymnospermae : the Gymnosperms .... 516 



Order 1. Cycadales : the Cycads 517 



Order 2. Coniferales : the Conifers 519 



Order 3. Gnetales : the Gnetums 624 



Class 2. Angiospermse : the Angiosperms .... 524 



Sub-class 1. Monocotyledonese : the Monocotyledons . . 527 



Series A. The Primitive Monocotyledons . . . .529 



Orders 1-5. Pandanales to Arales 529 



Series B. The Differentiated Monocotyledons . . .634 



Orders 6-7. Bromeliales to Liliales .... 635 



Series C. The Specialized Monocotyledons . . . 537 



Orders 8-9. Scitaminales and Orchidales . . . 537 



Sub-class 2. Dicotyledonese : the Dicotyledons . . . 539 



Series A. The Primitive Dicotyledons . . . .640 



Orders 1-12. Verticillales to Caryophyllales . . . 540 



