ORNAMENTAL TREES AND SHRUBS FOR MONTANA 23 



not been tested at the experiment station, but we would expect 

 them to be exceptionally hardy. 



GLBDITSCHIA. 



This genus contains several species of ornamental deciduous 

 tiees. It belongs to the order Leguminosae, and has the character- 

 istics of that order with pinnate leaves and pea-like flowers, the 

 seeds being produced in pods. 



Honey or Sweet Locusti: (Cried it scliia triacanthos] This 

 species has been tested at this station. It grows to a height of 50 

 to 140 feet and is covered with spines from 2 to 4 inches long. The 

 leaves are 6 to 8 inches long, pinnate, with 20 to 30 leaflets. The 

 pods are 12 to 18 inches long and red brown in color. It is a native 

 of Pennsylvania and thence south to Mississippi and west to Neb- 

 raska and Texas. At this station it is not hardy, the current year's 

 growth killing back each winter. At lower altitudes in the state 

 it is hardy and makes a good ornamental tree. 



HIPPOPHBA. 



Siea Buckthorn: (Hippophae rhamnoides) Plants of this 

 species were secured in 1906 from the South Dakota Experiment 

 Station and planted in the experimental nursery. They are entirely 

 hardy at this station and promise to be a valuable addition to our 

 list of ornamental plants. There seem to be two distinct forms of 

 this species. Hansen, in Bulletin No. 72 of the South Dakota Ex- 

 periment Station, says: "The French form of this species winter 

 killed at Fort Petersburg, Russia, while the form from Irutsk, on 

 Lake Baikel, Siberia, proved hardy." The plants secured for this 

 station are of Siberian origin, and are given the name of Siberian 

 Sand Thorn by Prof. Hansen. The leaves are grayish green above 

 and silvery green below, which gives a very distinct effect in shrub- 

 bery groups. It is valuable for shrubbery or group planting and 

 will also make a very desirable hedge. It is propagated by seeds 

 sown in the spring. 



JUGKLANS 



Black Walnut: (Juglans nigra) This tree grows to a height 

 of 150 feet and promises to be one of the very desirable street and 

 ornamental trees. In the experimental nursery it has not been en- 

 tirely hardy, the foliage being killed by the first frost in the fall, 



