XVI 
CONTENTS 
Pages 
HISTOLOGY OF A CAPSULE, VANILLA 166 
HISTOLOGY OF A MERICARP, FCENICULUM 167-168 
THE SEED. — Definition; structure; functions; appendages . . : . .168-169 
MODE OF FORMATION OF DIFFERENT TYPES OF ALBUMEN. 
— Perisperraic; endospermic; perispermic and endospermic; 
exalbuminous and albuminous seeds 169-170 
A MONOCOTYL SEED. — Its gross structure and histology 170-171 
A MONOCOTYL SEEDLING. — Germination and structure 1 71-172 
A DICOTYL SEED. — Its gross structure and histology 1 72-1 73 
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 economic 
products 174-230 
BRYOPHYTA. — Definition. Characters of the Hepaticae and Musci. 
Life history of a typical true moss 231-236 
PTERIDOPHYTA. — Definition. Characters of the Lycopodineae, 
Equisetineae and Filicineae. Life history of a typical fern. 
Plants of the group yielding official drugs 236-241 
SPERMATOPHYTA (PHANEROGAMIA).— 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. Character- 
istics of the Angiosperms and of the classes and families yield- 
ing drugs. Tables of official and unofficial drugs with the 
names of the plants, parts constituting the drugs and habitats . 241-355 
BIBLIOGRAPHY 356 
INDEX 
357 
