<>'• FlKI.l) AfAXUAL 



1. Sorbus americana Marsh. American Mountain- 

 ash. A small tree with smooth hark, liark and unripe fruit 

 very astringent. Wood soft, light Inown. In moist ground. 

 Much prized for ornamental i)lanting. Xewf. to Man., N. 

 Car., and Mich. 



■2. Sorbus scopulina Greene. Western Mountain-ash. 

 A small tree with smooth hark. \n moist ground. Lab. to 

 Alaska. X. Eng., Ohio, Mich., and in Rocky Mts. to Colo, 

 and Utah. 



■ '.. Sorbus aucuparia !.. iuiropean Mountain-asii. .\ 

 small tree, native of Europe. hVequently cultivated. Fruit 

 poisonous to man. but eaten by some birds. N. S. to N. H. 



■I'l. Pyrus ('J'ourn.) L. Pear. 



Trees or shrubs with alternate, simple. i)innately-veined. 

 serrate leaves with long petioles ; with stipules or stipular 

 scars ; with terminal buds, cylindrical pith, and fruit a pome 

 with grit cells. 



Flowers l)isporangiate with a fleshy hypanthium united 

 with the ovulary ; pentamerous ; stamens numerous. 



1. Pyrus communis L. Pear. A pyramidal usually 

 slender tree, often with thorn-like stunted branches. Bark 

 smooth. Wood hard, fine-grained, reddish-brown. Cultivated 

 for its large fleshy fruit. Native of Europe and Asia. Me. 

 tc X. J. and Ohio. 



•I-\. Malus Mill. .\])ple. Cra!)-ai)ple. 



Trees or shruijs with alternate, simple, pinnately-veined, 

 dentate, serrate or more or less lobed leaves, with stipules 

 or stipular scars; with terminal buds, cylindrical pith, and 

 fruit a pome without grit cells. 



Flowers l)isporangiatc with a fleshy hypantliium united 

 with the ovulary. pentamerous. stamens numerous. 



I. Leaves glabrous, at least when mature. 2.- 



1. Leaves persistently pubescent or tomentose beneath. •'?. 



2. Leaves oblong, oval, or lanceolate, narrowed at the 

 base. M. coronaria. 



2. Leaves ovate, rounded or cordate at the l)ase, often 

 .somewhat lobed. M. r/laucrscens. 



