256 NEBRASIiA STATE HORTICULTURAL SOCIETY. 



A PARTIAL LIST OF OMAHA TREES. 



BY F. GRACE ERNST, OMAHA, NEB. 



This list was made during the summer of 1907, and is the result of 

 studies begun in the University of Nebraska while pursuing the subject 

 of Systematic Botany, a year or so earlier. Many visits were made to 

 the parks and forests in and near the city of Omaha, as well as the 

 private grounds of many of the citizens who have been interested in the 

 growth of trees for ornamental purposes. The list is by no means com- 

 plete, and is now published in order to call attention to the very con- 

 siderable number of species which even a casual examination will show. 

 Its chief value is that it may call attention to some trees which it in- 

 cludes and which are not known to people generally. For this reason 

 the localities are given where specimens of each tree may be found. I 

 am indebted to Mr. W. R. Adams, Superintendent of the Omaha Park 

 Commission, and to several other friends for many kindnesses in helping 

 to locate unusually good specimens. 



FAMILY PINACBAE. 



PiNus Linnaeus. The True Pines. 



Leaves needle-shaped, in clusters of 2, 3 or 5. Trees of the northern 

 hemisphere, and especially of cold climates. 



Pinus sylvestris Linnaeus. Scotch pine. Riverview and Hanscom Parks. 

 Pinus laricio austriaca Endl. Austrian pine. Riverview and Hanscom 

 Parks. 



Pinus strobus Linnaeus. White pine. Riverview and Hanscom Parks. 

 Some very good specimens in Hanscom Park. 



Pinus resinosa Alton. Red pine. Riverview Park, northeast pond. 



Pinus montana Du Roi. Mugho pine. Thirty-third and Woolworth avenue. 



Pinus ponderosa scopularum Engel. Bull pine. Hanscom Park, north of 



greenhouse. 



PiCEA Link. The Spruces. 



Leaves angled, placed singly on the twigs; never in clusters. 



Picea canadensis (Mill) B. S. P. White spruce. 



Picea pungens Engelm. Colorado blue spruce. 



Picea excelsa Link. Norway spruce. 



TsuGA Carr. The Hemlocks. 



Leaves flat, and placed singly on the twigs, never in clusters. Cones 

 BOt falling to pieces when ripe. 



Tsuga canadensis (L.) Carr. Hemlock. Hanscom Park, north bandstand 

 (small). 



