* Suited to the region east of the Mississippi and north of the frostless region of the Gulf States, but not all hardy in the northern part of United States and adjacent Canada.

** Suited to the same general region, but most at home in the northern part of the area.

Those that have no symbol before the name are understood to be, generally speaking, hardy throughout the country, with, of course, exceptions such as the desert and alkali regions of the country.

EVERGREENS

*White Pine, Pinus Strobus.
*Austrian Pine, Pinus Austriaca.
*Scotch Pine, Pinus sylvestris.
*Pitch Pine, Pinus rigida.
**Red Pine, Pinus resinosa.
*Umbrella Pine, Sciadopitys verticillata.
*White Fir, Abies concolor.
**Fraser’s Fir, Abies Fraseri.
*Nordman’s Fir, Abies Nordmanniana.
*Norway Spruce, Picea excelsa.
**White Spruce, Picea alba.
**Red Spruce, Picea rubens.
*Koster’s Blue Spruce, Picea pungens glauca.
*Engelmann’s Spruce, Picea Engelmannii.
*Juniper. Different species of the genus Juniperus, mostly low growing and suitable for ground covers.
*Japanese Cypress, Retinospora obtusa. There are many garden varieties.
*Southern Cypress, Taxodium distichum. Not hardy in the northern part of the area. Best in wet places.
*Lawson’s Cypress, Chamæcyparis Lawsoniana.
*English Yew, Taxus baccata.
**American Yew, Taxus canadensis.
*Hemlock, Tsuga canadensis.

Of these the Austrian pine, hemlock, and the firs have the densest foliage and should be used for such effects. Almost nothing will grow under the evergreen trees, so close is their foliage. Lack of light and the acid leached out of their bark by rains, stop the growth of nearly all herbs underneath them.

DECIDUOUS TREES

Planted mostly for their foliage masses, but a few bear showy flowers and such will be noted. The same symbols apply.

*American Beech, Fagus ferruginea.
*European Beech, Fagus sylvatica.
*White Oak, Quercus alba.
*Red Oak, Quercus rubra, the most rapid grower of all the oaks.
*Scarlet Oak, Quercus coccinea.
Horsechestnut, Aesculus Hippocastanum.
*Norway Maple, Acer platanoides.
*Red Maple, Acer rubrum. Prefers moist places.
Sugar Maple, Acer saccharum.
*Silver Maple, Acer saccharinum. Fine tree with interesting branching, but brittle.
*Tulip Tree, Liriodendron tulipifera. Showy orange-green flowers.
*American Plane Tree, Platanus occidentalis. A native tree, but not so satisfactory as
*Oriental Plane Tree, Platanus orientalis.
*Sweet Gum, Liquidambar styraciflua.
White-leaved Poplar, Populus alba.
Balsam Poplar, Populus balsamifera.
*Flowering Plum, Prunus Pissardi and many other varieties and species of the genus Prunus such as Japanese Flowering Cherries and Plums.
*American Elm, Ulmus americana.
*English Elm, Ulmus campestris.
*Maidenhair Tree, Ginkgo biloba. Not hardy in the northern part of the area.
Black Locust, Robinia Pseudacacia. Showy pink flowers.
European White Birch, Betula alba.
Black Alder, Alnus glutinosa.
Ash, Fraxinus americana.
*Dogwood, Cornus florida. Showy white bloom. Tree will not grow well unless in partial shade.
*Cornelian Cherry, Cornus Mas. Covered with yellow flowers before the leaves come out in early spring.
*European Hornbeam, Carpinus Betulus.
Weeping Willow, Salix Babylonica.
Box Elder, Acer Negundo.
*Magnolias. Different trees and some shrubs of the genus Magnolia all with showy flowers. Rather tender and cannot be grown without considerable care, especially when young.
Honey Locust, Gleditsia triacanthos.
Catalpa, Catalpa speciosa. Showy flowers.
*Paulownia imperialis. Showy flowers, but not hardy in northern part of the area.

There are many other deciduous and evergreen trees that might be listed and which will be found in the nursery catalogues of dealers in different parts of the country. Some of these require special conditions of soil and climate and should not be planted unless these conditions are understood. In the frostless region of the country many plants can be grown that are of tropical or near-tropical origin, but no list of them will be included here. Some of them are hardy as far north as Washington, D. C., and are worth trying by anyone living in this region, as they give us effects not possible with the trees noted.