CONTENTS XIX 



Cucumis melo (Muskmelon, Cantaloupe, Melons) — Descrip- 

 tion — Botanical Varieties of Cucumis melo 618-620 



Cucumis sativus (Cucumber) — Description — Geographical — 



— Closely Related Forms — Types — Pickles 620-622 



Cucumis anguria — Description 622 



Citrullus (Watermelon, Citron, Colocynth) — Description — 



Geographical 622-623 



Citrullus vulgaris (Watermelon, Citron) — Description — Geo- 

 graphical — Types and Varieties 622-624 



References 624 



CHAPTER XL.— Composite (Thistle Family). 



Habit — Leaves — Inflorescence — Flowers — Key to Important 



Genera 625-628 



Lactuca sativa (Garden Lettuce) — Description — Origin, and 

 Geographical — Types of Lettuce — Key to Types of Lettuce. . 629-633 

 Tragopogon porrifolius (Salsify or "Oyster Plant") — Descrip- 

 tion — Geographical, and Closely Related Species — Uses 633-635 



Cichorium (Chicory or Succory, and Endive) — Description — 



Geographical 635 



Cichorium intybus (Chicory or Succory)— Description — Uses, 



and Varieties 636 



Cichorium endiva (Endive) — Description — Geographical 



Distribution, and Economic Uses 636-638 



Helianthus tuberosus (Jerusalem Artichoke) — Description — 



Geographical — Closely Related Species — Uses 639 



References 639 



Glossary 641-65 1 



Index 653 . 



