Part 3

Bittersweet (Solanum dulcamara) 46

Buttonbush (Cephalanthus occidentalis) 47

Cramp-bark tree (Viburnum opulus) 48

Black haw (Viburnum prunifolium) 48

Index 51

ILLUSTRATIONS.

Page.

FIG. 1. White pine (Pinus strobus), leaves and cones 10

2. Tamarack (Larix laricina), leaves and cones 10

3. Aspen (Populus tremuloides), trunk 11

4. Aspen (Populus tremuloides), leaves and capsules 12

5. Bayberry (Myrica cerifera), leaves and fruit 14

6. Butternut (Juglans cinerea), trunk 15

7. Ironwood (Ostrya virginiana), leaves and fruit 16

8. Sweet birch (Betula lenta), trunk 17

9. Sweet birch (Betula lenta), leaves, catkins, and fruit 17

10. Tag-alder (Alnus rugosa), leaves, catkins, and fruit 18

11. White oak (Quercus alba), trunk 19

12. White oak (Quercus alba), leaves and acorns 19

13. Slippery elm (Ulmus pubescens), trunk 20

14. Slippery elm (Ulmus pubescens), leaves, flowers, and fruits 21

15. Cucumber-tree (Magnolia acuminata), leaves 21

16. Umbrella-tree (Magnolia tripetala), leaves 22

17. Sweet bay (Magnolia glauca), leaves and fruiting cones 23

18. Tulip-poplar (Liriodendron tulipifera), trunk 24

19. Tulip-poplar (Liriodendron tulipifera), leaves, flowers, and fruit 24

20. Sassafras (Sassafras sassafras), leaves and fruits 25

21. Spicebush (Benzoin benzoin), leaves, flowers, and fruits 26