:I2 FAMILY KEY 



n. Leaves rounded at both ends; stipules present; petals united at base; fruit 

 a drupe. Viburnum in Caprifoliaceae (p. 212) 



EE. Leaves pinnately veined, with only i large vein from the base. 

 J. Plants parasitic on trees; leaves entire, often scalelike. 



LORANTHACEAE (p. 78) 



JJ. Plants not parasitic; leaves entire or not entire, usually not scalelike. 

 K. Leaves densely scurfy at least beneath. Eleagn.aceae (p. 156) 



KK. Leaves not scurfy. 

 L. Plants hoary, 3-6 dm. high, erect; bark ashy-gray, shreddy; leaves 2.5 

 cm. or less long, entire, obtuse or retuse, spatulate to obovate, 



Ramona in Menthaceae (p. 104) 



LL. Plants not hoary, often taller or vinelike; bark not as above; leaves various. 



M. Leaves scaleUke, 2-4 mm. long; plants 3 dm. or less high, erect or 



ascending. Cassiope in Ericaceae (p. 171) 



MM. Leaves not scalelike, mostly longer; plants various. 



K. Small creeping vine with mint odor. 



Micromeria in Menthaceae (p. 194) 

 NN. Either not a vine or one without mint odor. 



O. Vines, twining or merely creeping. Caprifoliaceae (p. 212) 



00. Not vines, erect or decumbent. 

 P. Petals united; leaves entire or coarsely lobed. 

 Q. Plants of peat bogs; leaf margin revolute; ovary superior; fruit dry.* 



Kalmia in Ericaceae (p. 171) 

 QQ. Not plants of peat bogs; leaf margin plane. 

 R. Ovary inferior; stamens all anther-bearing, as many as the corolla 

 lobes; either fruit berry-like or plant creeping. 



Caprifoliaceae (p. 212) 

 RR. Ovary superior; anther-bearing stamens i fewer than the corolla 

 lobes, antherless stamen I ; fruit dry; plant not creeping. 



Scrophulariaceae (p. 198) 

 PP. Petals distinct; leaves entire or serrulate or spinose-toothed. 

 S. Twigs conspicuously 4-angled. 

 T. Leaves entire, evergreen, obtuse or acutish. 



Garrya in Cornaceae (p. i68) 

 TT. Leaves serrulate, deciduous, acuminate. 



Euonymus in Celastraceae (p. 147) 

 SS. Twigs not 4-angled. 

 TJ. Leaves 3 cm. or more long, entire; stipides minute. 



Coknaceae (p. 168) 



UU. Leaves 3 cm. or less long, serrulate at least above the middle or 



spine-toothed or rarely quite entire; stipules either none, or large and 



warty. 



V. Leaves serrulate above the middle, without conspicuous divergent 



parallel veins; flower parts in 4's; ovary 2-celled. 



Pachistima in Celastraceae (p. 147) 

 VV. Leaves either entire or spine-toothed near the apex, with nu- 

 merous conspicuous straight parallel veins diverging from the mid- 

 vein; flower parts in 5's; ovary 3-celled. 



Ceanothus in Rhamnaceae (p. 149) 



