KEY 7 



C 



FAMILY PAGE 



Flowers not in catkins ; calyx present, 



sometimes petal-like. 



(1) Trees or shrubs. 



Flowers not hypogynous ; plants not climbing . 74. Dogwood . . . 175 



Flowers not hypogynous ; climbing plants . . 24. Dutchman's Pipe 68 

 Flowers hypogynous. 



Style single, not cleft, fruit a key (Fraxinus) 79. Olive .... 189 



Style single, not cleft, fruit a drupe . . . 38. Laurel .... 95 



Styles 2 or 2-cleft, fruit 1-celled .... 19. Elm 62 



Styles 2 or 2-cleft, fruit 2-celled .... 69. Maple .... 151 



Styles 3, each 2-cleft. Ovary 3-celled ... 54. Spurge .... 146 



(2) Herbs. 



Flowers not hypogynous ; ovary 6-celled . . . 24. Dutchman's Pipe 68 

 Flowers not hypogynous ; ovary 1-celled ; flowers 



in umbel-like clusters 22. Sandalwood . . 67 



Flowers hypogynous. 

 (a) Ovary 1-celled. 



Stamens many 33. Buttercup ... 83 



Stamens few. 



Stipules sheathing the joints 25. Buckwheat . . 69 



Stipules wanting. 



Rather fleshy herbs 26. Goosefoot ... 72 



Not fleshy. 



Ovules on a free central placenta; deli- 

 cate, soft-leaved herbs. (Stellaria) . . 31. Pink .... 77 



Ovule single, coarse herbs 27. Amaranth ... 74 



(6) Ovary several-celled. 



Small prostrate herb; leaves spatulate,whorled 29. Ice Plant ... 76 

 Stipules present, not sheathing. 



Style single 21. Nettle .... 66 



Styles 2 20. Mulberry ... 64 



Flowers hypogynous, ovary 3-celled .... 54. Spurge .... 145 

 Flowers hypogynous, ovary 5-10-celled ; fruit a 

 berry 28. Pokeweed ... 75 



