A PABTIAL LIST OF OMAHA TREES. 257 



Abies Juss. The Firs. 



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

 falling to pieces when mature. 



Ahies concolor Lindley & Gordon. White fir. Riverview Park. 



AHes balsamea (L.) Mill. Balsam fir. Riverview Park, Elmwood Park 

 (small). 



Thuja L. Arbor Vitae. 



Leaves small and forming a flat, smooth spray. 



Thuja occidentalis L. Arbor vitae. 



Thuja orientalis L. Chinese arbor vitae. Riverview Park, south of pine 



group. 



JuNiPEBUS L. Red Cedar. 



Leaves small and forming spreading, smooth or prickly branches. 

 Juniperus virginiana L. Red cedar. 



TiARTx Adans. Larch, or Tamarack. 

 Leaves needle shaped, but falling off at the end of the season. 

 Larix larieina (Du Roi) Koch. Larch. Hanscom Park (small). 



Sausbueia. 

 Leaves fan-shaped, with parallel veins. 

 Salisburia adiantifolia Smith. Ginkgo. 1821 North Nineteenth street and 

 Cudahy Place. 



FAMILY SALICACEAE. 

 PopxjLus L. The Poplars. 

 These are the true poplars, although they are commonly called cot- 

 tonwoods in this country. 



Populus alba L. White poplar. Boulevard, Thirty-fourth and Pacific 



streets. 

 Populus alba bolleana L. White poplar. Riverview Park by pond. 

 Populus candicans Ait. Balm of Gllead. West Famam. 

 Populus italica Du Roi. Lombardy poplar. Tenth and Bancroft streets. 

 Populus deltoides Marsh. Cottonwood. Native. 

 Populus angulata Ait. Carolina poplar. Thirty-second and Lincoln 



avenues. 

 Populus tremuloides Michx. Aspen. Hanscom Park. 



Salix L. The Willows. 

 Salix babylonia L. Weeping willow. Jocelyn Place. 



Salix vitellina Lin. Yellow willow. Hanscom Park, near greenhouse. A 



very large tree. 

 Salix missouriensis Bebb. Diamond willow. Native. 

 Salix interior Rowlee. Sand-bar willow. 

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