ANALYTICAL KEY 



Leaf-scars Alternate {contimced). 



Buds small, acute, reddish brown ; bundle-scars on 

 leaf-scars borne in a circle ; juice milky. Mul- 

 berry. {Morns, p. 123.) 



Buds ovate ; twigs green, slightly aromatic ; pith 

 thick, mucilaginous. Sassafras. {Sassafras, 



P- I47-) 



Buds obtuse, dark red, their scales hairy ; twigs 

 with red leaf-scars and stout spur-like branchlets. 

 Tupelo. {Nyssa, p. 120.) 



Buds small, covered by closely overlapping scales ; 

 twigs slender, with pungent odor ; leaf-scars oval. 

 Cherry. {Prunus, p. 171.) 



Buds acute, orange-brown ; twigs furnished with 

 corky wings ; pith pentagonal in shape. Liquid- 

 amber. {Liquidambar, p. 144.) 

 Twigs stout, buds large. 



Buds with loosely appressed scales ; leaf-scars 

 conspicuous; stipule-scars absent. Hickory, 

 except Carya cordifortnis. {Carya, p. 49.) 



Buds with closely appressed pubescent scales ; leaf- 

 scars V-shaped, less conspicuous ; stipule-scars 

 present. Mountain Ash. {Pyrus,'^. x^jo?) 



Buds covered by imbricated scales, resinous and 

 gummy. Poplar. {Populus, p. 179.) 



Buds covered by a single scale of two connate 

 stipules. 



Branchlets slender. 



Lateral buds often larger than the terminal bud. 

 Willo^v. {Salix, p. 177.) 



Buds compressed, obtuse ; branches purplish 

 brown. Tulip Tree. {Liriodendron, p. 155.) 



