CONTENTS 
XIX 
A MONOCOTYL SEED.—Its gross structure and histology. 
A MONOCOTYL SEEDLING.—Germination and structure. 
A DICOTYL SEED.—Its gross structure and histology. 
CHAPTER VIII 
Taxonomy 
THALLOPHYTA.—Definition. Characters of the Protophyta, Myxo- 
mycetes, Algae, Fungi and Lichenes. The Mounting and 
Staining of Bacteria. Life histories of representative types of 
Thallophytes. Plants of the group yielding drugs and eco¬ 
nomic products. 
BRYOPHYTA.—Definition. Characters of the Hepaticae and Musci. 
Life history of a typical true moss. 
PTERIDOPHYTA.—Definition. Characters of the Lycopodineae, 
Equisetineae and Filicineae. Life history of a typical fern. 
Plants of the group yielding official drugs. 
SPERM ATOPHYTA (PHANEROG AMI A) .—Definition. Charac¬ 
teristics of the Gymnosperms and of the Order and Family 
yielding important drugs and economic products. Table of 
official and unofficial drugs yielded by Gymnosperms including 
part of plants used, botanical origins and habitats. Charac¬ 
teristics of the Angiosperms and of the classes and families 
yielding drugs. Tables of official and unofficial drugs with the 
names of the plants, parts constituting the drugs and habitats. 
CHAPTER IX 
Ecology 
PLANT ASSOCIATIONS.—Definition. Classification based on re¬ 
lation plant associations have assumed in regard to water. 
Characteristics of Hydrophytes, Helophytes, Halophytes, 
Xerophytes, Mesophytes and Tropophytes. 
GLOSSARY.. 
INDEX.. . . 
Pagbs 
215- 216 
216- 217 
217- 218 
219-282 
282-287 
287-292 
29 2-407 
408-412 
412-440 
441-479 
