TREES 



2. Trees with Ornamental Flowers.— In making the 

 following grouping, arranged according to relative 

 hardiness, it has been impossible to give precise in- 

 formation as to the exact degree of frost-tolerance of 

 the several species, as we can And but meager published 

 data on the subject. 



A. Susceptible to light frost. 

 The following would probably succumb to a tempera- 

 ture of 28° Fahr. : 



Encalyptns calophylla. 

 Eucalyptus ficifolia, 

 Jacarauda ovalifolia. 



AA. Susceptible to heavy frost. 

 The following are not likely to stand a temperature of 

 20° Fahr. Some of them may succumb at 25° Fahr., 

 particularly while young: 

 Acacia Baileyana, 

 Acacia cyanophylla. 



1843 



Acacia molliss 

 Acacia neriifol 



Acacia salicina 



Acacia pycnantha. 

 ^sculus carnea. 

 ^sculus Hippoeastanum, 

 Albizzia Jiilibrissin. 

 Catalpa bignouioides, 

 Catalpa ovata, 

 Catalpa speciosa, 

 Cercis Canadensis. 

 Cercis Siliquastrum, 

 Crat£Bgus mollis, 

 Cratfegus monogyna (vars, 

 alba plena, 



Bursaria spinosa, 

 Eucalyptus cornuta. 

 Eucalyptus eorymbosa. 

 Eucalyptus polyanthema. 

 Eucalyptus sideroxylon, 



pal lens. 

 Hymenosporum flavaxm, 

 Pittosporum undulatum. 



AAA. Hardy. 



Magnolia Soulangeana, 

 Magnolia stellata. 

 Paulowuia imperialis, 



Pauli. 



Primus cerasifera, var. atro- 



Prunus Japoniea, 



Prunxis Persica (white- fld., 



double red -fld.. dark -fld.. 



etc.). 

 Prunus spinosa (double-fld.). 

 Pyrus Halliana. 

 Py rus loensis ( Bechtel' s double 



Robinia blspida, 

 Robinia Pseudaeacia, 

 Sophora Japoniea. 

 S or bus Aucuparia. 



Koelreuteria paniculata, 

 Laljurnum \'T.ilgare, 

 Liriodeudron Tulipifera, 

 Magnolia acuminata. 

 Magnolia grandiflora. 

 Magnolia Kobus, 



3. Trees with Colored Foliage. 



A. Glaucous. 

 B. Susceptible to frost [20° Fahr. and perhaps less). 

 Acacia Baileyana, Eucalyptus polyanthema, 



Acacia dealbata, Eucalyptus Risdoui, 



Acacia glauceseens, Eucalyptus sideroxylon, var. 



Acacia salicina, pailens, 



Erythea armata. Leucadendron argenteum. 



Eucalyptus Globulus (pollarded Phtpnix dactylifera, 

 to produce suckers), Washingtonia Sonorse. 



BB. Hardy. 

 Cedrus Atlantiea. var. glauea, Picea pungens, var. glauca. 

 Cedrus Deodara, var. glauca. Sequoia sempervirens, var. 

 Picea pungens, var. ccerulea, glauca. 



AA. Purple or bronze. 



B. Susceptible to 35° Fahr. 



Ricinus Cambodgensis, Rioiuus communis, var. Gib- 



BB, Hardy. 

 Acer platanoides. var. Reiten- Fagiis sylvatica. var. purpurea 



bachi, Riversi. 



Acer platanoides, var. Schwed- Prunus cerasifera, var. atro- 



leri, p^irpurea, 



Betula alba, var. atropurpurea. Prunus Persica var. 

 Fagus sylvatica, var. purpurea, 



4. Wide -spreading Trees for Shade, Mostly with 

 Ro\inded Outline. — It frequently bappens that the 

 owner of a i^arden desires a wide-spreading tree in the 

 back or one corner of his domain, under which to 

 swing a hammock on a hot day; such trees are also 

 useful in the school yard, affording welcome shade in 

 which the children can eat their lunch. 



A. Deciduous, all hardy. 



B. G'rotvth rapid or medium. 



C. Suckers likely to be troublesome. 



cc. Suckers not troubleso» 

 D. Requiring a great deal of r 

 Salix Babylonica. 



DD. Requiring not much wa 

 Acer macrophyllum, Acer sacc 



Acer Negundo, 

 Acer Negundo, var. Californi- 



Acer Pseudo-platauus, 



BB. Growth somewhat slow. 

 ' campestre, 



.^sculu 

 .iEsculus Hippoeastanum. 

 Carpinus Betulus, 

 Castanea sativa, 

 Fagus sylvatica. var. purpur 

 Juglans Sieboldiana, 

 Liriodeudron Tulipifera, 

 Melia Azedarach. var. u 

 bracuJiformis, 



Platanus orientalis, 

 Quercus eoceinea. 

 Quercus KelloggU. 

 Quercus lobata, 

 Quercus macrocarpa. 



Ulu 



' Fahr 



AA. Evergreen. 

 B. Growth rapid: trees susceptible \ 

 Acacia moUissima. 



BB. Growth somewhat slow: trees hardy. 

 Arbutus Menziesii, Pinus Pinea. 



Fieus Carica. Quercus ngrifolia. 



Olea Europsea. Schinus Molle, 



5. Ornamental Trees affording but Little Shade. 

 A. Outline oblong or nearly columnar. 

 B. Deciduous. 

 Populus nigra, var. Italica. 



BB. Evergreen. 

 Cupressus sempervirens, 

 Cupressus sempervirens, var. fastigiata. 

 Juniperus communis, var. Hibernica, 

 Taxus baccata, var. fastigiata. 



AA. Outline conical or spiralf visually pointed. 

 B. Voniferw, with mostly narrow leaves. 

 c. Deciduous: hardy. 

 Larix decidua, 

 Larix leptolepis. 

 Taxodium distichum. 



CO. Evergreen. 

 Susceptible to sevej'e frost {probably about 30° Fahr, 

 Agathis robusta, Arauearia Cuuuinghami 



Araucaria Bidwillii. Arauearia excelsa. 



Arauearia Braziliana, Araucaria imbricata, 



Araucaria Cookii. Pinus Cauariensis. 



DD. Hardy. 



Picea excelsa. 



Abies balsamea. 

 Abies Cepbaloniea, 

 Abies concolor, 



Abies Nordmanniau 

 Abies Pinsapo. 



Ced 



i Atla 



Cedrus Deodara, 

 Cedrus Libani. 

 Cephalotaxus drupaeea, 

 Cephalotaxus Portunei, 

 Cham.-eeyparis Lawsonia 



Picea polita, 

 Picea pungens. 

 Pinus Laricio, 



Pinus Coulteri, 

 Pinus densiflora, 

 Pinus monophyl 





nsis, 



Cupressus macrocarpa, 

 Cupressus macrocarpa, ■' 



Guadalupensis. 

 Libocednis Chilensis, 

 Libocedms decurrens, 

 Picea Ajanensis, 



Pinus Sabiuiana, 

 Pinus sylvestris, 

 Podocarpus Totara, 

 Pseudotsuga Douglasii, 

 Sciadopitys verticillata. 

 Sequoia gigantea. 

 Sequoia sempervirens, 

 Taxus baccata. 

 Thuja gigantea, 

 Thuja orientalis, 

 Thujopsis dolabrata, 

 Torreya Californiea, 

 Torreya nucifera. 



BB. Foliage broad. 

 c. Deciduous; hardy. 



I alba, Ginkgo biloba, 



I lenta, Quercus Cerris 



I ]uti.'a, Quercus nigra, 



I papyrifera. Sorbus Aucuparia. 

 L populifolia, 



