CONTENTS 



PAGE 



INTRODUCTORY xiii 



Scope and Problems xiii 



General Principles and Rules xxi 



THALLOPHYTES 1 



Schizomycetes, or Bacteria 1 



Algse ' 5 



Phaeophycese, or Brown Algae 6 



Rhodophycese, or Red Alga) 7 



Bacillariacase, or Diatoms 9 



Fungi 11 



Poisonous Fungi 18 



Saccharomyces, or Yeasts 24 



Lichens 26 



ARCHEGONIATES 29 



Ferns and Fern- Allies 29 



SPERMOPHYTES 36 



Gymnosperms 38 



Pinaceae, or Pine Family 36 



Angiosperms 50 



Monocotyledons 51 



Graminese, or Grass Family 51 



Palmse, or True Palms 67 



Araceae, or Arum Family 73 



Commelinacaea, or Spiderwort Family 76 



Liliaceae, or Lily Family 76 



Dioscoreaceae, or Yam Family 108 



Amaryllida eae, or Amaryllus Family 109 



Iridacese, or Iris Family 110 



Zingiberaceae, or Ginger Family 117 



Marantaceae, or Arrowroot Family 128 



Orchidacese, or Orchid Family 130 



Dicotyledons 140 



Piperacese, or Pepper Family 142 



Salicaceae, or Willow Family 155 



Myricaceae, or Sweet Gale Family 158 



Juglandaceae, or Walnut Family 159 



Betulaceae, or Birch Family 162 



Fagacese, or Beech Family 165 



ix 



