76 TREES OP THE NORTHERN UNITED STATES 



GENUS 16. CEDRELA. 



Leaves large, altern'ate, deciduous, odd-pinnate. Flow- 

 ers with separate petals, fragrant, white, in large clusters. 

 Fruit 5-celled dehiscent pods, with 

 many pendulous, winged seeds. 



Cedr61a Sin6nsis. (CHINESE CEDRE- 

 LA.) Leaves large, odd-pinnate, alter- 

 nate, appearing much like those of the 

 Ailanthus, but with slight serrations near 

 the tips of the leaflets, and no glands near 

 the base. Bruised leaves with a strong 

 odor; footstalk and stout-tipped branches 

 with glands. Large tree, seemingly hardy 

 in New Jersey, but dies to the ground in 

 winter in Massachusetts. Recently in- 

 troduced from China. 



ORDER XI. SIMARUBACE-ffi. (QUASSIA FAMILY.) 



Eastern trees and shrubs, here represented by a single 

 tree: 



GENUS 17. AILANTHUS. 



Large trees to shrubs, with alternate, odd-pinnate leaves. 

 Flowers small, greenish, in large 

 terminal panicles. Fruit broadly' 

 winged, like the Ash, but with the 

 seed in the center. 



Ailanthus glandulosus, Desf. (TREE 

 OF HEAVEN.) Leaves very large, 2 to 5 

 ft. long on the younger growths ; leaflets 

 obliquely lanceolate, coarsely toothed at 

 the base, with a gland on the lower side 

 at the point of each tooth ; point of leaf- 

 lets entire. Young twigs thick, rusty 

 brown ; buds very small in the axils. 

 Only some of the trees have fruit, as 



