22 OUR NATIVE BIRDS 
Nursery men are likely to offer species which have been 
introduced from Europe or Asia, but they will generally 
answer just as well, provided they are hardy in the region 
where they are wanted. The letters N.,5., M., W., 
mean that the respective plant is found or that the 
genus is represented in the North, South, Rocky Moun- 
tains, and on the Pacific Slope respectively. On the 
distribution of species and genera I have consulted : — 
1. Gray, Manual of the Botany of the Northern United States. 
Sixth edition. 
2. Britton and Brown, Mlustrated Flora of the Northern United 
States and Canada. 
3. Chapman, Flora of the Southern United States. Second edition. 
4. Coulter, Manual of the Botany of the Rocky Mountain Region. 
5. Whitney and Watson, Botany of California. 
I believe that our native trees, shrubs, vines, and 
flowers should be used much more for ornamental pur- 
poses. Readers who may wish to know the more con- 
spicuous wild flowers are referred to Mrs. Dana, ‘“* How 
to know the Wild Flowers,” and to Parsons and Buck, 
“The Wild Flowers of California.” 
Both books are illustrated and are well adapted to the 
purpose they intend to serve, and show that hundreds 
of our wild flowers deserve a place in our parks and 
gardens. 
Our schools in observing Bird and Arbor Day, or 
Nature Day, should not neglect vines, shrubs, and 
flowers. Your space for trees may be limited, but you 
can always find corners, fences, and walls for vines, 
shrubs, and flowers, and it is generally easier to make 
