, and will permit of close planting.

5. European linden (_Tilia microphylla_)

Beautiful shade-bearing crown; is very responsive to good soil and
plenty of moisture.

6. American elm (_Ulmus americana_)

When planted in rows along an avenue, it forms a tall majestic
archway of great beauty. It is best suited for wide streets and
should be planted further apart than the other trees listed above.
Requires a fairly good soil and plenty of moisture, and is therefore
not suited for planting in the heart of a large city.

7. Pin oak (_Quercus palustris_)

This tree exhibits its greatest beauty when its branches are allowed
to droop fairly low. It, moreover, needs plenty of moisture to
thrive and the tree is therefore best suited for streets in suburban
sections, where these conditions can be more readily met.

8. Red maple (_Acer rubrum_)

Beautiful in all seasons of the year; requires a rich soil and
considerable moisture.

TREES BEST FOR WOODLAND

FOR OPEN PLACES

1. Red oak (_Quercus rubra_)

Grows rapidly to large size and produces valuable wood; will grow in
poor soil.

2. White pine (_Pinus strobus_)

Rapid grower; endures but little shade; wood valuable; will do well
on large range of soils.

3. Red pine (_Pinus resinosa_)

Very hardy; fairly rapid growing tree.

4. Tulip tree (_Liriodendron tulipifera_)

Grows rapidly into a stately forest tree with a clear tall trunk;
wood valuable; requires a fairly moist soil. Use a small tree, plant
in the spring, and pay special attention to the protection of the
roots in planting.

5. Black locust (_Robinia pseudacacia_)

Grows rapidly; adapts itself to poor, sandy soils. The wood is
suitable for posts and ties.

6. White ash (_Fraxinus americana_)

Grows rapidly; prefers moist situations. Wood valuable.

7. American elm (_Ulmus americana_)

Grows rapidly to great height; will not endure too much shade; does
best in a deep fertile soil. Wood valuable.

8. European larch (_Larix europaea_)

Grows rapidly; prefers moist situations.

[Illustration: FIG. 94.--Woodland Trees. Red Oaks.]

FOR PLANTING UNDER THE SHADE OF OTHER TREES

9. Beech (_Fagus_)

Will stand heavy shade; holds the soil well along banks and steep
slopes. Both the American and the English species are desirable.

10. Hemlock (_Tsuga canad