196 Nebraska State Horticultural Society. 



Rydberg's Cottonwood (Populus acuniinata Ryd.) occurs here and 

 there in the Rocky mountains of Colorado and Wyoming, from which 

 it has invaded western Nebraska at one point (Scott's Bluff county). 



Common Cottonwood (Populus occidentalis (Ryd.) Britt). is very 

 abundant in the Missouri forests, from which it has passed up the 

 rivers across the state to the western border and beyond. 



It is now thought that our western Cottonwood is distinct from 

 the species of the eastern states. 



FLESHY FRUITS. 



Red Cedar (Juniperus spp.). The small few-scaled cones increase 

 their parenchymatous tissue and become fleshy, and berry-like. They 

 are eaten by some birds and in this way the seeds are scattered. 



Eastern Red Cedar (Juniperus virginiana L.) is found scattered 

 over the eastern United States, and occurs in the various bodies of 

 forests eastward of Nebraska. From these it has moved westward up 

 the river valleys fully two-thirds of the distance across the state. 



Western Red Cedar (Juniperus scopuloruni Sarg.) occurs in the 

 Rocky mountains, from which it appears to have moved eastward into 

 the western third of the state. 



Papaw (Asimina triloba (L. ) DunalJ. The large fleshy fruits 

 which contain about eight large hard seeds are edible, and are picked 

 up and carried off, or eaten directly by various quadrupeds. In either 

 case it happens that some of the seeds a-re carried some distance from 

 the parent trees. This species is very common in the Missouri forests, 

 from which it has moved up the river valleys in southeastern Nebraska 

 (Richardson to Pawnee, Nemaha, Otoe and Saunders counties). 



Hackberry (Celtis occidentalis L.). The globose one-seeded fruits 

 are fleshy, and are in fact small drupes, much like thin-fleshed cherries. 

 They are freely eaten by birds, and thus the seeds may be carried to 

 considerable distances (even to many miles) from the parent trees. 

 This species occurs abundantly in the Missouri forests, from which it 

 has extended its range up the Missouri, Republican, Platte and Niobrara 

 river valleys, across the plains to the Rocky mountains. 



Red Mulberry (Morus rubra L.). The compound fleshy fruit 

 (sorosis) consists of an aggregation of small one-seeded drupes, each 

 surrounded by the fleshy calyx-lobes. They are eaten by many birds. 



