292 PHANEROGAMOUS PLANTS. 



the Indians, and Little Service-berry by the settlers. It is palatable, 

 and hundreds of bushels of it are dried for winter use. Among the 

 specimens of this plant in the collection is one from Nisqually, in 

 which many of the leaves are quite entire, and the rest only sparingly 

 serrate towards the summit. 



14. CRATiEGUS, Linn. 



1. Crataegus sanguinea, Pallas. 



Hab. Puget Sound, and eastward to the Columbia, also in the Nez 

 Perces country ; common along rivers: the var. Douglasii, Torr. & 

 Gray. This grows from ten to twelve feet high. All the specimens 

 in the collection have narrower leaves, with the base more cuneiform 

 than in the Siberian C. sanguinea. The spines are short and stout. 



15. PYRUS, Linn. 



1. Pyrus rivularis, Dough in Hook. 



Hab. Shores of Puget Sound : common. Gulf of Georgia, Dr. 

 Holmes ; not seen in the interior of the country. — This is a tree, 30 

 feet high, with a trunk nine inches in diameter ; very variable in the 

 foliage. On the same individual some of the leaves are undivided, 

 and others are 3-lobed. Usually they are obovate, but sometimes 

 oblong and even almost lanceolate. When young, the under suface 

 is covered with a white tomentum. The calyx segments fall off as 

 the fruit ripens. 



2. Pyrus (Sorbus) Americana, DC. 



Hab. Cascade Mountains of Oregon. — In all our Oregon specimens 

 there are only eleven leaflets ; but otherwise they do not appear to 

 differ from the eastern plant. [It is doubtless P. sambucifolia, Cham. 

 & Schlecht., which extends eastward to Lower Canada.] 



