TREES AND FORESTRY 



lenticels; the alternate leaf scars are large, more or less heart-shaped, and 

 show many small scars where woody fibres broke away. The buds are small, 

 two-scaled. The pith in the twigs is brown and extensive. 



5. Sassafras (Sassafras sassafras Karst.). The yellowish green, rigid- 

 looking twigs are arranged in bushy sprays. They are brittle and when 

 broken give off an aromatic odor. The term'nal buds, which include leaves 

 and flowers, are prominent throughout the winter. 



6. Sweet Gum (Liquidambar styraciflua L.). The young twigs are 

 yellowish in color; the 

 buds are reddish brown 

 and glossy. If the twigs 

 show the blade-like 

 ridges of bark charac- 

 teristic of sweet gum, 

 the matter of the tree's 

 identity is settled at 

 once. 



/ Flower cluster 

 Scar 



--Leaf Scar 



— Bud Scale 

 Scars 



V. Horsechestnutand 

 Maples: Trees with 

 dark-colored twigs and 

 opposite buds. 



1. Horsechestnut 

 (/Esc ul us hippocasta- 

 num L.). The dark 

 twigs are coarse and 

 stout, with prominent 

 opposite leaf scars (Fig. 

 74). The large brown 

 and scaly terminal buds 

 are covered with a gum- 

 my substance. The old 

 bark of the tree breaks 

 away in smooth, square 

 pieces. 



2. Red Maple (Acer rubrum L.). Branches, leaf scars, and buds arc 

 opposite (Figs. 75 and 76). Spherical flower buds, red in color, may be 

 clustered around the stem adjacent to the leaf buds. Young twigs are red; 



firbwth 



of one 

 year 



HORSECHESTNUT TWIG 



