46 



The New York State College of Forestry 



bud scales such as are found in the arborescent plants of the tem- 

 perate regions, but sheathed with embryonic leaves which are 

 in various stages of unfolding. In such plants there is no demand 



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for protective devices in that the climate is continually warm 

 and humid, and low temperature, with its resulting drying action, 

 is unknown. In regions where a winter season necessitates a 

 period of dormancy, or where there are distinct seasonal wet and 

 dry periods, resting buds, generally protected by overlapping 



