STUDIES OF TREES IN WINTER 



2. LEAF-SCARS ALTERNATE (continued). 



B. Trees not armed with thorns or prickles. 

 i. Buds naked (without scales). 



Lateral buds superposed ; pith brown, chambered. 



Walnut. (Juglans, p. 45.) 

 Buds curved, flattened, orange-colored. Bitter- 

 nut. (The only northern Hickory with naked 

 buds.) (Carya cordiformis, p. 53.) 

 Buds acuminate, light brown, enclosed by the de- 

 ciduous stipules of unfolded leaves ; woody 

 capsules persistent on the branches. Witch 

 Hazel. (Hamamelis, p. 146.) 

 2. Buds with scales. 



a. Branch ending in a terminal bud. 



Buds covered by numerous scales. 

 Twigs slender. 



Upper axillary buds clustered at the apex 

 of the twig; pith 5 -angled. Oak. 

 (Quercus, p. 83.) 

 Upper axillary buds not clustered. 



Buds narrow, acuminate, about one inch 



long. Beech. (Fagus, p. 77.) 

 Buds acute, chestnut brown, slightly 

 pubescent, not more than % inch 

 long. Shad Bush. (Amelanchier, 



P- i?3-) 



Buds light brown ; recent shoots chan- 

 neled in two grooves. Chestnut. 

 (Castanea, p. 81.) 



Buds smooth, dark red ; stipule-scars 

 present. Linden. (Tilia, p. 141.) 



