18 MONTANA EXPERIMENT STATION 



CE1LTIS 



This genus includes several trees and shrubs which are valu- 

 able for shade or as specimens on lawns. They are characterized 

 by a wide spreading head and light green foliage. Plants are propa- 

 gated by seeds sown soon after they ripen. One species has been 

 tested at this station. 



Hackberry: (Celtis occidentalis) In 1904 ten plants 4 

 lo 6 feet high were set in the experimental nursery. They killed 

 back each winter and were destroyed in the spring of 1907. 



CERCIS. 



This genus includes several trees and shrubs. The leaves are 

 deciduous, entire and alternate. The flowers are pea-like in form, 

 and appear before or with the leaves. They are very ornamental 

 and are well adapted for group planting or as specimens on the lawn. 

 They are propagated by seeds in the spring. 



Red Bud. (Cercis Canadensis) This species produces a 



tree about 40 feet in height. In 1904 six plants were secured in 

 Iowa and set in the experimental nursery. In the fall of 1904 

 they were badly injured by a hard freeze the last of November. In 

 the spring of 1905 they were all dead. At this altitude Cercis 

 is not hardy enough for general planting. 



CHIONANTHUS. 



White Fringe or Fringe Tree: (Chionanthus Virginica,) 

 In 1903 ten plants of White Fringe were secured in Pennsylvania. 

 These grew through the first summer without injury. In the spring 

 of 1905 their tops were killed back and during each of the following 

 winters this was repeated. In the spring of 1907 they were des- 

 troyed. 



CLADRASTIS. 



Yellowwood: (Cladrastis amurensis) This grows into n 

 tree about 40 feet in height and is native to Manchuria. Seeds 

 were sown in the spring of 1907 and since that time the young 

 plants have been entirely hardy. It promises to be hardy enough 

 for general planting in Montana. 



VIRGIN' S-BOWER 



'With this are included a number of climbing vines and per- 

 ennial herbs. Many of them are valuable to screen porches and 



