CONTENTS XVII 



CHAPTER XXXIV.— Umbelufer^ (Carrot Family). 



Stems and Leaves — Inflorescence and Flowers — Fruit — 

 Geographical — Key to Genera of Economic Importance .... 530-533 

 Daucus carota (Carrot) — Habit, Root and Stems — ^Leaves — 

 Inflorescence and Flowers — Fruit and Seed — Geographical 



— Varieties — Uses S33-S36 



Pastinaca sativa (Parsnip) — Habit, Roots, and Stems — Leaves 

 — Inflorescence and Flowers — Fruit and Seed — Geographical 



—Varieties S36-538 



Apium (Celery and Parsley) — Generic Description — Geo- 

 graphical — Key to Principal Species of Apium 53^-539 



Apium petroselinum (Parsley) — Description — Varieties S39~S4o 



Apium graveolens (Celery and Celeriac) — Description — Geo- 

 graphical — Types and Varieties — Uses 540-542 



References 542 



CHAPTER XXXV.— Vacciniace* (Huckleberry Family). 



Habit — ^Leaves — Inflorescence and Flowers — Fruit S43~S4S 



Vaccinium — Pollination — Fruit — Geographical — Key to Chief 



Fruit-bearing Species of Vaccinium 545-547 



Gaylussacia (Huckleberry, Tangleberry, Dangleberry) — 

 Description — Geographical — Key to North American Species 



of Gaylussacia 547 



Cranberries — Vaccinium macrocarpon — Types — Vaccinium 



oxycoccus, Vaccinium vitis-idaea . .' 548-550 



Huckleberries and Blueberries 550 



References 550 



CHAPTER XXXVL— OLEACEiE (Olive Family). 



Family Description — Geographical, and Economic Impor- 

 tance 551 



Olea europoea (Olive) — Description — Seed Germination — 

 Propagation— Uses SSi-553 



CHAPTER XXXVIL— CoNVOLVULACE* (Morning Glory Family). 

 Habit — Leaves — Inflorescence and Flowers — Fruit — Key to 



Important Genera 5S4-S5S 



Ipomoea batatas (Sweet Potato) — Roots and Stems — ^Leaves — 

 Inflorescence and Flowers — Geographical, and Environmental 

 Relations — Closely Related Species — Types and Varieties — 

 Leaf Shape as a Basis of Classification — Uses — References. .555-558 



CHAPTER XXXVIII.— Solanace^ (Potato Family). 



Habit of Plants — ^Leaves — Inflorescence and Flowers — Fruit 



— Key to Important Genera SS9~S(>° 



Solanum — Habit — ^Leaves — Inflorescence, and Flowers — 



Fruit — Geographical — Key to Important Species of Solanum. .560-561 



