S KEY AND FLORA 



Styles or stigmas 3, separate. Petals 3, lasting Family Page 



several days. Leaves netted-veined . . 10. (Trillium) TuUy . 30 

 Style 1, stigma 3-lobed or (J-toothed. 

 Corolla not actinomorpliic. Aquatic herbs 



with parallel-veined leaves 8. Pickerel Weed . 28 



1 1 1 Perianth actinomorpliic, its divisions all alike 



or nearly so, petal-lilte 10. Lily .... 30 



** Perianth not hypogynous. 



Anthers 6 . 11. Amaryllis . . 43 



Anthers 3 12. Iris .... 45 



Anthers 1 or 2 1,3. Orchis ... 47 



SUBCLASS IL —DICOTYLEDONS. Flowers usually with their parts in 

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



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

 corolla.^ 



A 



Flowers monoecious or dioecious, one or both 

 sorts in catkins. 



(1) Staminate flowers in catkins, the pistillate ones 



solitary or clustered. 



Leaves pinnately compound 16. Walnut . . 52 



Leaves simple 18. Beech . . . 58 



(2) Both kinds of flowers in catkins. 

 (a) Leaves alternate. 



Ovaries in fruit becoming fleshy and com- 

 bining into an aggregate fruit . . . 20. Mulberry . . 64 



Fruit 1-fleeded, a drupe or minute nut. 

 Aromatic shrubs 15. Bayberry . 51 



Fruit a capsule, seeds with silky hairs . . 14. Willow . . 48 



Fruit a minute nut or akene. Mostly large 

 shrubs or trees, not very aromatic . . 17. Birch . . . 64 



(6) Leaves opposite, small parasitic shrubs . . 23. Mistletoe ... 68 



Flowers not in catkins, both calyx arid"c6i 



roUa wanting 45. Sycamore . 113 



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

 the corolla is considered to be missing. 



