ARBORICULTURE 



ARBORICULTURE 



373 



TREES VALUED FOB FOLIAGE EFFECTS, continued. 

 AAA. With small, narrow, or finely cut foliage. 



Acer palmatum var. dissectum. 

 Acer platanoides var. Lorbergii. 

 Acer saccharinum var. Wieri. 

 AInus glutinosa var. imperials. 

 Betula pendula var. dalecarlica. 

 Elffiagnus angustifolia. 

 Fagus sylvatica var. aspleni folia, 

 Gleditsia triacanthos. 

 Gymnocladus canadensis. 

 Hippopha rhamnoides. 

 Juglans regia var. laciniata. 

 Quercus pedunculata var. tilicifolia. 

 Salix nigra. 



Sambueus nigra var. laciniata. 

 Tamarix gallica, etc. 

 Taxodium distichum. 



4. TREES WITH BRILLIANT AUTUMNAL TINTS. 



Acer rubrum (scarlet). 



Acer saccharum (scarlet and orange). 



Cornus florida (scarlet). 



Cercidiphyllum (yellow and purple). 



Cratcegus (mostly scarlet and orange). 



Fraxinus araericana (yellow or violet-purple). 



Liquidambar (scarlet). 



Liriodendron (bright yellow). 



Nyssa aylvatica (scarlet). 



Oxydendrum arboreum. 



Quercus alba (vinous purple). 



Quercus coccinea, palustris (scarlet). 



Rhus (mostly scarlet). 



Sassafras (orange and scarlet). 



5. EVERGREEN TREES. 



A. Conifers. 



Abies. 



Chamsecyparis 

 Juniperus virginiana, 

 Picea. 



Pinus. 



Pseudotsuga. 

 Thuya. 

 Tsuga. 



AA. Broad-leaved evergreens (only Ilex opaca and 

 Rhododendron hardy in the N.). 



Ilex opaca. 



Magnolia glauca (not 

 fully evergreen as far 

 north as it is hardy). 



Magnolia grandiflora. 



Persea carolinensis. 

 Prunus caroliniana, 

 Prunus lusitanica. 

 Quercus virginiana. 

 Rhododendron maximum. 



6. DECIDUOUS TREES VALUED FOR THEIR WINTER 

 EFFECTS. 



Acer Xegundo (branches light green). 



Acer pennsylvanicum (striped bark). 



Betula nigra (flaky reddish brown bark). 



Betula papyracea (smooth, silvery white bark). 



Crataegus viridis, C. nitida and other species (red fruit). 



Fagxis sylvatica (keeps its dead leaves). 



Gleditsia (large, flat pods). 



Hippophae rhamnoides (yellow berries). 



Liquidambar (corky branches). 



Pyrus prunifolia (scarlet or yellow fruit). 



Quercus alba, pedunculata and tinctona (keep their 



leaves). 



Quercus macrocarpa (corky branches). 

 Rhus typhina (scarlet fruit). 

 Salix vitellina (yellow branches). 

 Sorbus americana and S. aucuparia (scarlet fruit). 



COLUMNAR OB NARROW PYRAMIDAL TREES, continued. 

 Populus nigra var. italica. 

 Quercus pedunculata var. pyramidalis. 

 Robinia pseudacacia var. pyramidalis. 

 Sorbus hybrida. 



Taxodium distichum (especially var. imbricarium). 

 Taxus baccata var. fastigiata. 

 Thuya. 



Ulmus campestria var. monumentalia. 

 Ulmus scabra var. fastigiata. 



9. ROUND-HEADED TREES. 



Acer platanoides var. globosum. 



.Ksculus Hippocastanum var. umbraculifera. 



Catalpa bignonioides var. nana. 



Fraxinus excelsior var. globosa. 



Morus alba var. nana. 



Prunus Mahaleb var. globosa. 



Robinia Pseudacacia var. umbraculifera. 



Ulmus campestris var. gracilis. 



Ulmus campestris var. umbraculifera. 



10. WEEPING TREES. 



Acer saccharinum var. Wieri. 



Betula alba var. pendula. 



CraMegus monogyna var. pendula. 



Fagus sylvatica var. pendula. 



Fraxinus excelsior var. pendula. 



Fraxinus parvifolia var. pendula. 



Gleditsia triacanthos var. pendula, 



Prunus pendula. 



Prunus serotina var. pendu'a. 



Quercus pedunculata var. Dauvessei. 



Salix babylonica. 



Salix blanda. 



Salix vitellina var. pendula. 



Sophora japonica var. pendula. 



Sorbus aucuparia var. pendula. 



Tilia petiolaris. 



Ulmus scabra var. pendula. 



11. CITY TREES. (See also No. 12.) 



Ailanthus altissima (pistillate tree). 



Carpinus. 



Celtis occidentalis. 



Cratsegus oxyacantha. 



Fraxinus americana. 



Fraxinus excelsior. 



Ginkgo biloba. 



Gleditsia triacanthos. 



Platanus orientalis. 



S St. itaHca } <*"- -tUctod by borers). 



Prunus serotina. 



Robinia Pseudacacia (often attacked by borers). 



Sophora japonica. 



Tilia tomentpsa. 



Tilia ulmifolia. 



Ulmus americana. 



Ulmus campestris. 



12. SHADE AND AVENUE TREES. 



Besides the trees enumerated under city trees, No. 11 

 (which are to be recommended as street trees in the 

 cities), the following trees are good avenue subjects: 



7. VERY TALL TREES. 



Gleditsia triacanthos. 

 Juglans nigra. 

 Liriodendron TuHpifera, 

 Pjcea excelsa. 

 Pinus strobus. 

 Platanus occidentalis. 

 Populus balsamifera. 



Populus deltoides. 

 Quercus macrocarpa. 

 Quercus palustris. 

 Quercus rubra. 



?uercus velutina. 

 axodium distichum. 

 Ulmus americana. 



Acer platanoides. 

 Acer rubrum. 

 Acer saccharinum. 

 Acer saccharum. 

 jEscuIus carnea. 

 jEsculus Hippocastanum. 

 Catalpa speciosa. 

 Liquidambar styraciflua. 

 Liriodendron Tulipifera. 



Quercus alba. 

 Quercus coccinea. 

 Quercus imbricaria. 

 Quercus palustris. 

 Quercus phellos. 

 Quercus rubra. 

 Tilia americana, 

 Tilia dasystyla. 

 Tilia ulmifolia. 



13. TREES FOR SEASIDE PLANTING. 



8. COLUMNAR OR NARROW PYRAMIDAL TREES. 



Abies (most species). 



Acer saccharinum var. pyramidale. 



Acer saccharum var. monumentale. 



Betula pendula var. fastigiata. 



Carpinus betulus var. fastigiata. 



Cepnalotaxus Harringtonia var. koraiana. 



Chamajcyparis Lawsoniana. 



Chamsecyparis nutkaensis. 



Juniperus communis var. suecica. 



Juniperus virginiana (especially var. pyramidalis). 



Liriodendron Tulipifera var. pyramidalis. 



Picea (most species). 



Populus alba var. Bolleana. 



Ailanthus altissima. 

 Cratsegus oxyacantha. 

 Eleeagnus angustifolia. 

 HippophaS rhamnoides. 

 Juniperus virginiana. 

 Picea alba. 

 Pinus nigra. 

 Pinus sylvestris. 



Populua deltoides var. caroli- 



nensia. 



Populus tremuloides. 

 Quercus rubra. 

 Salix alba. 

 Salix caprea. 

 Sassafras. 

 Tamarix. 



14. TREES FOR DRY SITUATIONS AND DRY CLIMATES. 



Pinus diyaricata. 

 Pinus rigida. 

 Pinus sylvestria. 

 Quercus coccinea. 

 Quercus Prinus. 

 Quercus rubra. 

 Quercus velutina. 

 Ulmus effusa. 



Acer campestre. 

 Acer ginnala, 

 Alnus rugosa. 

 Betula pendula. 

 Cornus mas. 

 Elffiagnus angustifolia. 

 Fraxinus pubescens. 

 Phellodendron amurense. 



