INTRODUCTION 



The States Washington, Oregon, and Idaho (Region 1, see map, p. 2) 

 make a good geographical and a fair floristic -unit. It is well known that 

 the territory west of the Coast Ranges is characterized "by high humidity 

 and abundant precipitation, so that it is a distinct habitat for plants. 

 The three northwestern States embrace desert areas and high mountains also, 

 hut there are, nevertheless, a surprising number of rather generally 

 distributed plants that ftirnish fruits attractive to birds. They are 

 named in the principal table (2) for this region. Separate tables (3 to 10) 

 listing cultivatable , noncommercial fruit-bearing plants, are given for 

 some of the ecological subdivisions, including the humid west and the arid 

 east. The mo-untain regions are largely ignored because of the sparse 

 population. 



Table 1 shows groups of fleshy fruits most attractive to birds 

 throughout the United States and lists desirable kinds of birds most 

 fond of the fruit. No barberries, currants, or buckthorns are listed, 

 because they harbor rusts destructive to plants of economic importance. 

 Junipers are in almost the same category, as they serve as alternate hosts 

 for apple rust, but there is no reason why they cannot be used in districts 

 where apples are not commercially grown, as they are among the most valuable 

 plants for wildlife. Omitted also are plants poisonous to man on contact, 

 as poison ivy and poison sumac, as well as various kinds dangerously 

 poisonous to domestic animals, as yews, wild cherries, and nightshades, 

 in spite of the fact that wild cherries are greatly relished by birds. 

 Browsing animals are known to have been killed by feeding on the leaves 

 of wild cherries but do not seem to be so seriously aiffected by those of 

 plums. Certain plants included among fleshy fruit bearers in previous 

 publications have been transferred to the list of seed producers, hence 

 do not appear in the present series of leaflets. These include magnolia 

 ( Magnolia ) , bittersweet ( Celr.strus) , and burningbush ( Buonymus ). 



It should be noted that the fruit-bearing seasons recorded, being 

 collected from varied sources, tend to be maxima. As a rule they are not 

 likely to be realized or even approached in a single locality unless 

 numerous specimens of a. given species are present and so distributed in 

 sun and shaeLe as to f-vor both early and laite fruiting. 



The word "extralimital" as here used in certain table headings 

 covers plants from other States or regions of the United States as well 

 as wholly introduced, exotic, or foreign plants. 



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