10 KEY AND FLORA 



DIVISION III. GAMOPETAL^E. Petals united into a cup or tube. 



Ovary free from the calyx (superior). 

 Corolla regular. 



Ovary deeply 4-lobed, in fruit forming 4 nutlets 



(Borraginaceae), Borage Family, p. 137 



Ovary 2-celled, ovules numerous ; fruit often a berry 



(Solanacese), Nightshade Family, p. 145 



Ovary 2-celled (generally 4-ovuled) ; twining plants 



(Convolvulacese), Morning-glory Family, p. 132 



Ovary 1-celled or imperfectly 2-celled, styles 2-cleft or entire 



(Hydrophyllaceae), Baby-eyes Family, p. 133 



Ovary 3-celled with axillary placenta, style 3-lobed 



(Polemoniacese), Phlox Family, p. 130 



Ovary 1-celled with 2 parietal placentae, style 1, stigmas 2 



(Gentianacese), Gentian Family, p. 128 



Ovary cells as many as petals, style 1, anthers 2-celled, opening by 

 holes at the top . . (Ericaceae), Heather Family, p. 120 



Ovary 1-celled with axillary placenta, stamens opposite the petals 

 (Primulacese), Primrose Family, p. 125 



Ovary 5-angled, 1-celled, 1-seeded, styles 5 

 1 (Plumbaginaceae), Sea Pink Family, p. 127 



Ovary 2-celled (sometimes 3-4-celled) with 1 seed in each cell (some- 

 times more in Plantago major) 



(Plantaginacese), Plantain Family, p. 153 



Ovaries 2, distinct, with a stigma common to both and united with a 

 crown-like column of stamens ; flowers in umbels ; seeds with a 

 tuft of silky hairs ; plants with milky juice 

 (Asclepiadacese), Silkweed or Milkweed Family, p. 129 



Similar to Asclepiadaceie, except that the stamens are distinct and 



free from the stigma, but the anthers are disposed to cohere with it 



(Apocynacese), Dogbane Family, p. 130 



Corolla irregular. Fertile stamens fewer than the divisions of the 



corolla. 



Ovary deeply 4-lobed, becoming 4 nutlets ; corolla 2-lipped ; aromatic 



herbs or shrubs . . . (Labiatse), Mint Family, p. 139 



Ovary 2-celled, seeds many on a central placenta, style and stigma 1 



(Scrophulariacese), Figwort Family, p. 146 



Ovary 2-celled with 2 or more parietal placentae, seeds many ; root- 

 parasites without leaves or green color 



(Orobanchacese), Broom Rape Family, p. 153 



