Ord 39. CORNACEA 



1. CORN US, Tourn. 



1. CORNUS PUBESCENS, Nlltt. 



Cornus pubescens, Nutt. in Torr. and Gray, Fl. 1, p. 652 (sub var. sericea) and 

 Sylv. 3, p. 54 ; Torr. in Pacif. R. Road Exped., 4 (Bot. WhippL), p. 95. 



Hab. Puget Sound, and Upper Columbia River, southward to San 

 Francisco ; in moist, rich soil. — It attains the height of 12 to 15 feet. 

 The twigs are dark red. Nearer to O. alba than to C. sericea. 



2. Cornus Nuttallii, Audubon. 



Cornus Nuttallii, Audub. Birds of America, t. 867; Torr. & Gray, Fl. 1, p. 652; 



Nutt. Sylv. 3, p. 51, t. 97. 

 C. florida, Hook. Fl. Bor.-Am. 1, p. 277 (partim). 



Hab. Common in woods around Puget Sound, and on the Columbia 

 and Kooskooskee Rivers; also on the Sacramento, California. — A very 

 distinct species from the Flowering Dogwood of the Eastern States. 

 The leaflets of the involucre, although commonly six in number, are 

 often only four or five. The number of flowers in a head is three 

 times greater than in G. florida, and the calyx and lobes are longer, 

 as well as thicker, and somewhat carinate on the back. Trees of this 

 species sometimes attain the height of 60 feet. 



3. Cornus Canadensis, Linn. 



Hab. Valley of the Columbia, and about Puget Sound. — This 

 beautiful little species extends quite across the continent, and from 

 latitude 40° to the Arctic Regions. 



