60 TALKS AFIELD. 



are included the pomaceous (pome-bearing) 

 plants, apples, pears, quinces, medlars, ser- 

 vice-berries, mountain-ash, and hawthorns. 



Under each of these sub-families are in- 

 cluded the genera, of which the whole Rose 

 family contains about seventy. The repre- 

 sentative genus of the Pear sub-family is Py- 

 rus. Pyrus mains is the common apple, Pyrus 

 prunifolia the crab-apple, Pyrus communis 

 the pear, and Pyrus Cydonia the quince. 

 There are five native species of Pyrus in the 

 northeastern United States. One of the 

 most familiar is Pyrus Americana, the moun- 

 tain-ash. The wild crab-apple, common in 

 glades from western New York to Wisconsin 

 and southward, is P. coronaria, and the dog- 

 berry or choke-berry of swamps, a bush and 

 fruit resembling the whortleberry, is P. ar- 

 butifolia, " arbutus-leaved Pyrus." 



The Com.jwsite Family. 



The largest and the most readily recog- 

 nized of all orders is the Compositae. This 

 great family includes about 10,000 species, 

 fully one ninth of all flowering plants. 

 These species belong to nearly 800 genera. 

 One thousand six hundred and ten species 

 occur in North America north of Mexico, 



