110 



TREES OF THE NORTHERN UNITED STATES 



twice or sometimes thrice odd-pinnate, 

 usually prickly, with stalked, ovate, 

 acuminate, deeply serrate leaflets, glau- 

 cous beneath. Large panicles of small 

 whitish flowers in umbels, with invo- 

 lucres of few leaves. Berry small, ^ 

 in., 5-ribbed, crowned with the remains 

 of the calyx. A tree-like plant, 8 to 20 

 ft. high, or in the Gulf States 40 ft. 

 high, with the stem covered with nu- 

 merous prickles. Usually dies to the 

 ground after flowering. Wild in damp 

 woods, Pennsylvania and south, and 

 cultivated in the North. 



2. Ar&lia Chin6nsis. Leaves more or 

 less fully twice-pinnate ; leaflets ovate- 

 oblong, oblique at base, acuminate, 

 sharply serrate, hairy. Flowers and 

 fruit in large, branching, hairy panicles ; 

 thorns few, straight. A small tree, 10 to 

 15 ft. high ; occasionally cultivated ; from 

 China. 



3. Aralia (Acanthopanax) Maxi- 

 mowiczii. Leaves long-petioled, simple, 

 thick, palmately cleft, with 7 serrate 

 lobes ; old leaves smooth, the young with 

 woolly bases. Panicles of flowers and 

 fruit terminal; the berries striated. Tree- 

 trunk usually quite prickly. This species is said to grow 50 ft. high 

 in Japan. It has been recently introduced, and proves perfectly 

 hardy in Massachusetts. 



ORDER XXII. CORNACEJE. (DOGWOOD FAMILY.) 



A small order of shrubs and trees (rarely herbs) of tem- 

 perate regions. 



GENUS 45. COBNUS. 



Small trees or shrubs (one species an herb) with sim- 

 ple, entire, curved-veined, and (except in one species) op- 



A. Maximowfczil. 



