28 Wyoming Experiment Station. 



western part of the state, and also in the Sierra Madre moun- 

 tains of Carbon county. This evergreen is quite pretty and 

 very desirable as a small ornamental for the lawn. 



MAPLE FAMILY. 

 (Aceraceae). 



Only two maples are found in this state. One of these, the 

 large-toothed maple, occurring near Evanston, in the south- 

 western part of the state, grows as a tree and on account of its 

 thick and firm leaves is usually mistaken for an oak. The other, 

 the dwarf maple, grows in clumps and is hardly more than a 

 shrub. The box elder also belongs to this family. 



Dwarf Maple (Acer glabrum Torr.) 



This rarely grows to the size of a tree. It has the foliage, 

 flowers, and the winged twin fruits characteristic of maples. 

 The foliage though not dense is graceful, making the clumps 

 rather attractive. The shrub is common in canons and on rocky 

 slopes more or less throughout the state. 



BUCKTHORN FAMILY. 



(Rhamnaceae). 



This family has three representatives in this state. To it be- 

 long the buckthorns, New Jerscey tea and Supple-jack, all of 

 which are natives of the Eastern States. 



Alder-leaved Buckthorn (Rhamnus alnifolia L'Her.) 



A small shrub, 2 to 4 feet high, growing in swamps. The 



leaves are rather ample, very green and resembling those of an 



alder. Its flowers are greenish and inconspicuous. 



On account of its dark green foliage this shrub is striking in 



appearance. It occurs in the northwestern part of the state. 



