ARBORICULTURE 



ARBORICULTURE 



373 



Frees Valued for Foliage Effects, continued. 

 AAA. With snially narrow, or finely cut foliage, 



Acer palmatum var. dissectura. 

 Acer platanoides var. Lorbergii. 

 Acer siaccharinum var. Wieri. 

 Alnu.s glutinosa var. iinperialis. 

 Belula pendula var. dalecarlica. 

 Elffiagnus angustifolia. 

 Fagus tiylvatica var. asplenifolia. 

 Gleditsia triacanthos. 

 Gymnocladus canadensis. 

 Hippophae rhamnoides. 

 Juglans regia var. laciniata. 

 Quercus pedunculata var. filicifolia. 

 Salix nigra. 



Sambucus nigra var. laciniata. 

 Tamarix gallica. etc. 

 Taxodium distichum. 



4. Trees with Brilliant Autumnal Tints. 



Acer rubrura (scarlet). 



Acer saccharum {scarlet and orange). 



Cornus florida (scarlet). 



Cercidiphyllum (yellow and purple). 



Crataegus (mostly scarlet and orange). 



Fraxinus americana (yellow or violet-purple). 



Liquidambar (scarlet). 



Liriodendron (bright yellow). 



Nyssa sylvatica (scarlet). 



Oxydendrum arboreum. 



Quercus alba (\nnou3 purple). 



Quercus coccinea. palustris (scarlet). 



Rhus (mostly scarlet). 



Sassafras (orange and scarlet). 



5. Evergreen Trees. 

 A. Conifers. 



Abies. 



ChamEecyparia 

 Juniperu.s virginiana. 

 Picea. 



Pinus. 



Pseudotsuga, 

 Thuya. 

 Tsuga. 



AA. Broad-lea ved evergreens (only Ilex opaca and 

 Rhododendron hard}- in the N.). 



Ilex opaca. Persea carolinensis. 



Magnolia glauca (not Prunus caroliniana. 



fully evergreen as far Prunus lusitanica. 



north as it is hardy). Quercus virginiana. 



Magnolia grandiflora. Rhododendron maximum. 



6. Deciduous Trees Valued for Their Winter 

 Effects. 



Acer Negundo (branches light green). 



Acer pennsylvanicum (striped bark). 



Betula nigra (flaky reddish brown bark). 



Betula papyracea (smooth, silvery white bark). 



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



Fagus 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 tincloria (keep their 



leaves). 

 Quercus macrocarpa (corky branches). 

 Rhus typhina (scarlet fruit). 

 Salix vitellina fyellow branches). 

 Sorbus americana and S. aucuparia (scarlet fruit). 



Columnar or Narrow Pyramidal Trees, contiDued. 



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 campestris var. monumentalis. 



Ulmus scabra var. fastigiata. 



9. Round-headed Trees. 



Acer platanoides var. globosum. 



iEsculus Hippocastanum var. urabraculifera. 



Catalpa bignonioides var. nana. 



Fraxinus excelsior var. globosa. 



Morus alba var. nana. 



Prunus Mahaleb var. globosa. 



Robinia Pseudacacia var. umbraculifera. 



Ulmus campestris var. gracilis. 



Ulmvis campestris var. umbraculifera. 



10. Weeping Trees. 



Acer saccharinum var. Wieri. 



Betula alba var. pendula. 



CratEBgus 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 ipistillate tree). 



Carpinus. 



Celtis occidentalis. 



Crat£Egus oxyacantha. 



Fraxinus americana. 



Fraxinus excelsior. 



Ginkgo biloba. 



Gleditsia triacanthos. 



Platanus orientalis. 



Populus deltoides. 



Populus nigra var. italica 



Prunus serotina. 



Robinia Pseudacacia (often attacked by borers). 



Sophora japonica. 



Tilia tomentosa. 



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: 



' (often attacked by borers). 



7. Very Tall Trees. 



Gleditsia triacanthos. 

 Juglans nigra. 

 I-iriodendron Tulipifera. 

 Picea excelsa. 

 Pinus strobus. 

 Platanus occidentalis. 

 Populus balsamifera. 



Populus deltoides. 

 Quercus macrocarpa, 

 Quercus palustris. 

 Quercus rubra. 

 Quercus velutina. 

 Taxodium distichum. 

 Uimus americana. 



Acer platanoides. 

 Acer rubrum. 

 Acer saccharinum. 

 Acer saccharum. 

 iEsculus carnea. 

 .^sculus 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. 



Cephalotaxus Harringtonia var. koraiana. 



Chamacyparis Lawsoniana. 



ChamEEcyparis nutkaensis. 



Juniperus communis var. suecica. 



-lunipenis virginiana (especially var. pyramidalis). 



Liriodendron Tulipifera var. pyramidalis. 



Picea ("most species). 



Populus alba var. BoIIeana. 



Ailant hus altissima. 

 Crataegus oxyacantha. 

 Elseagnus angustifolia. 

 Hippophae rhamnoides, 

 Juniperus virginiana. 

 Picea alba. 

 Pinus nigra. 

 Pinus sylvcstris. 



Populus deltoides var. caroli- 



nensis. 

 Populus tremuloides. 

 Quercus rubra. 

 Salix alba. 

 Salix caprea. 

 Sassafras. 

 Taiiiaris. 



14. Trees for Dry Situations and Dry Climates. 



Acer campestre. 

 Acer ginnala. 

 Alnus rugosa. 

 Betula pendula. 

 Cornus mas. 

 Elseagnus angustifolia. 

 Fraxinus pubescens. 

 Phellodendron amurense. 



Pinus divaricata. 

 Pinus rigida. 

 Pinus sylvestris. 

 Quercus coccinea. 

 Q\iercus Prinus. 

 Quercus rubra. 

 Quercus velutina. 

 Ulmus eff'jsa. 



