32 



Wyoming Experiment Station. 



DOGWOOD FAMILY. 

 (Cornaceae). 



In this family are included the sour gum tree, the common 

 cornels or dogwoods and many other shrubs and trees. Several 

 of the American dogwoods and also some 

 European and a Siberian species are planted 

 for ornament in the East. The following dog- 

 wood is indigenous to this state : 

 Red-osier Cornel, or Dogwood (Cornus sto- 

 lonifera Michx.) 

 A medium-sized or large shrub with red- 

 dish-purple branches and white fruits, which 

 are about one-fourth (or less) of an inch in 

 diameter and contain a two-seeded stone. It 

 has small white flowers borne in clusters and 

 leaves which are green above, whitish be- 

 neath and two to four inches long. 



This shrub occurs on wooded bottom lands more or less 

 throughout the state. It is a pretty shrub and its bright-colored 

 stems and branches make it rather attractive in winter. 



HEATH FAMILY. 

 (Ericaceae). 



Among the members of this large family may be mentioned 

 such well-known plants as the trailing arbutus, the azalia, the 

 heather, the bearberry and the American laurel. Many of the 

 shrubs belonging to the heath family are evergreen, and quite 

 a number of them are very ornamental. The family is repre- 

 sented in this state by several low undershrubs, but only the 

 following is of any considerable size : 



Labrador Tea {Ledum glandulosum Nutt.) 



An evergreen shrub, two to six feet high, with thick, firm, 

 oblong leaves, whitish beneath, and terminal or lateral clusters 

 of white flowers. The small oblong seed capsules are borne on 



