Pomaceae 165 



species frequently forming mats of con- 

 siderable size ; flowering in June. 



Stems branched, 2-3 feet high, 

 Ktcoumii prickly. Leaves pinnate, leaf-. 

 Greene. lets large, f-ij inches long, 



Mace 

 Rose. 



Macoun's ova ^ coarse i y toothed. Flowers 



solitary, on slender pedicels, 

 bright pink, petals broadly obovate, an inch 

 or more long, sepals entire with a long 

 acuminate obtuse tip, persistent and erect 

 in fruit, fruit globose, bright scarlet. 



The wild rose of the region, in open 

 ground, on slopes, borders of woods, stream 

 and river banks throughout the Rockies; 

 flowering in late June and early July. 



POMACES 

 Apple Family 



Trees and shrubs with alternate leaves, 

 and regular, perfect flowers; calyx superior, 

 5 -toothed; petals 5 ; stamens numerous; fruit 

 a more or less fleshy pome. 



Leaves pinnate. Sorbus. 



Leaves simple, entire-toothed or lobed. Amelanchier. 



