10. 



10. 



5 KEY AND FLORA 



Styles or stigmas 3, separate. Petals 3, lasting 



several days. Leaves netted-veined 

 Style 1, stigma 3-lobed or 6-tootlied. 

 Corolla not actinomorphic. Aquatic herbs 

 witb parallel-veined leaves 

 1 1 1 Perianth actinomorphic, its divisions all alike 

 or nearly so, petal-like . 

 * * Perianth not hypogynous. 

 Anthers 6 . . . 

 Anthers 3 

 Anthers 1 or 2 . 



SUBCLASS II. — DICOTYLEDONS. Flowers usually with their parts in 

 fives or fours. Leaves netted-veined. Cotyledons 2. 



I. ApetalOUS Division. Flowers without a corolla or without either calyx or 

 corolla.i 



Family Page 



(Trillium) Ijily . 30 



Pickerel Weed . 28 

 Lily . 30 



Mowers monoecious or dicecious, one or both 

 sorts in catkins. 



(1) Staminate flowers in catkins, the pistillate ones 



solitary or clustered. 

 Leaves pinnately compound 

 Leaves simple . 



(2) Both kinds of flowers in catkins, 

 (o) Leaves alternate. 



Ovaries in fruit becoming fleshy and com- 

 bining into an aggregate fruit 



Fruit 1-seeded, a drupe or minute nut. 

 Aromatic shrubs ... ... 



Fruit a capsule, seeds with silky hairs . 



Fruit a minute nut or akene. Mostly large 

 shrubs or trees, not very aromatic 

 (6) Leaves opposite, small parasitic shrubs . 



Walnut 

 Beech . 



52 

 58 



B 



Flowers not in catkins, both calyx and co- 

 rolla wanting . . 



45. Sycamore 



113 



1 When only one floral envelope is present, this is said to he the calyx and 

 the corolla is considered to be missing. 



