TREES 



TREES 



1843 



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 tind but meager published 

 data on the subject. 



A. Susceptible to light frost. 

 The following would probably succumb to a tempera- 

 ture of 28° Fahr. : 



Eucalyptus ealophylla. 

 Eucalyptus ficifolia, 

 Jacaranda 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, Bursaria spinosa. 



Acacia eyanophylla, Eucalyptus corauta, 



Acacia elata. Eucalyptus corymbosa, 



Acacia t'alcata, Eucalyptus polyanthema, 



Acacia longifolia, Eucalyptus sideroxylon, var. 



Acacia mollissima, pallens. 



Acacia neriifolia, Hymenosporum flavum, 



Acacia pendula, Pittosporum undulatum. 



Acacia salicina, etc. 



AAA. Hardy. 

 Acacia pycnantha. Magnolia Soulangeana, 



jEsculus carnea. Magnolia stellata, 



,E ^cnlus Hippociistanum, Paulowuia imperialis, 



Albizzia Julibrissin, Prunus Armeniaca (double- 



Cat ;il pa bignouioides, fld.), 



Catalpa ovata, Prunus cerasifera, var. atro- 



Catalpa speciosa, purpurea, 



Cercis Canadensis, Prunus Japonica, 



Cercis Siliquastruin, Prunus Persica (white- fld., 



Crataegus mollis, double red - fld., dark -fld., 



Cratasgus monogyna (vars. etc.), 



Pauli, punicea, alba plena, Prunus spinosa (double-fld.), 

 etc.), Pyrus Halliana, 



Koelreuteria paniculata, Pyrus Ioensis(Bechtel'sdouble 



Laburnum vulgare, crab), 



Liriodendron Tulipifera, Robinia hispida. 



Magnolia acuminata, Robinia Pseudacacia, 



Magnolia grandiflora, Sophora Japonica, 



Magnolia Kobus, Sorbus Aucuparia. 



3. Trees with Colored Foliage. 



a. Glaucous. 

 b. Susceptible to frost (20° Fahr. and perhaps less). 

 Acacia Baileyana, Eucalyptus polyanthema. 



Acacia dealbata. Eucalyptus Risdoni, 



Acacia glaucescens, Eucalyptus sideroxylon, var. 



Acacia salicina. pallens, 



Erythea armata. Leucademlron argenteum, 



Eucalyptus Globulus(pollarded Phoenix dactylifera, 

 to produce suckers), Washingtonia Sonorae. 



bb. Hardy. 

 Cedrus Atlantica, var. glauca, Picea pun gens, var. glauca, 

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

 Picea pungens, var. ccerulea, glauca. 



AA. Purple or bronze. 

 b. Susceptible to 25° Fahr. 

 Ricinus Cambodgensis, Ricinus communis, var. Gib- 



sonii. 



bb. Hardy. 



Acer platanoides, var. Reiten- Fagus sylvatica, var. purpurea 



bachi, Riversi, 



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



leri, purpurea, 



Betula alba. var. atropurpurea, Prunus Persica var. 

 Fagus sylvatica, var. purpurea, 



4. Wide-spreading Trees for Shade, Mostly with 

 Hounded Outline. — It frequently happens that the 

 owner of a garden 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. Growth rapid or medium. 

 C. Suckers likely to be troublesome. 

 Popnlus alba, Ulmus Americana, 



Robinia Pseudacacia, Ulmus racemosa. 



cc. Suckers »»' troublesome, 

 d. Requiring a great deal of water. 

 Salix Babylonica. 



DD. Requiring not much water. 

 Acer macrophyllum, Acer saccharinum. 



Acer Negundo, Acer saccharinum, var. 



Acer Negundo, var. Californi- Wieri, 



cum, Carya olivaBformis, 



Acer platanoides, Fraxinus Americana, 



Acer platanoides, var. Reiten- Fraxinus velutina, 



bachi, Quereus lohata, 



Acer platanoides, var. Schwed- Quereus pedunculata, 



leri, Ulmus campestris. 



Acer Pseudo-plutanus, 



bb. Growth somewhat slow. 

 Acer campestre, Platanus orientalis, 



^Esculus carnea, Quereus coccinea, 



jEscuIus Hippociistanum, Quereus Kelloggii, 



Carpinus Betulus, Quereus lobata, 



Castanea sativa, Quereus macrocarpa, 



Fagus sylvatica, var. purpurea. Quereus rubra, 

 Jxiglans Sieboldiana. Sophora Japonica, 



Liriodendron Tulipifera, Tilia Americana, 



Melia Azedarach, var. urn- Tilia Europa?a, 



braculiformis, Ulmus campestris. 



aa. Evergreen. 

 b. Growth rapid: trees susceptible to 25° Fahr 

 Acacia mollissima. 



BB. Growth somewhat slow; trees hardy. 

 Arbutus Menziesii, Pinus Pinea, 



Ficus Carica, Quereus agrifolia, 



Olea Europsea, Sehinus 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 spiral, usually pointed. 

 b. Vonlfero?, with mostly narrow leaves. 

 C. Deciduous; hardy. 

 Larix decidua, 

 Larix leptolepis. 

 Taxodium distichum. 



CC. Evergreen. 

 D. Susceptible to severe frost (probably about 20° Fahr.). 

 Agathis robusta, Araucaria Ounninghamii, 



Araucaria Bidwillii, Araucaria excelsa, 



Araucaria Braziliana, Araucaria imbricata, 



Araucaria Cookii, Pinus Canariensis. 



dd. Hardy. 

 Abies balsamea. Picea excelsa, 



Abies Oephaloniea, Picea nigra, var. Doumetti, 



Abies concolor, Picea polita, 



Abies nobilis, Picea pungens, 



Abies Nordmanniana, Pinus Laricio, var. Austri- 



Abies Pinsapo, aca, 



Cedrus Atlantica, Pinus contorta, 



Cedrus Deodara, Pinus Coulteri, 



Cedrus Libani, Pinus densiflora, 



Cephalotaxus drupacea, Pinus monophylla. 



Cephalotaxus Fortunei, Pinus Pinaster, 



Chamflecyparis Lawsoniana, Pinus radiata, 

 Cryptomeria Japonica, Pinus Sabiniana, 



Cryptomeria Japonica, var. Pinus sylvestris, 



elegans, Podocarpus Totara, 



Cunuinghamia Sinensis, Pseudotsuga Douglasii. 



Cupressus Goveniana, Sciadopitys verticillata. 



Cupressus macrocarpa, Sequoia gigantea, 



Cupressus macrocarpa, var. Seqxioia sempervirens, 



Guadalupensis. Taxus baccata, 



Libocedrus Chilensis, Thuja gigantea, 



Libocedrus decurrens, Thuja orientalis, 



Picea Ajanensis, Thujopsis dolabrata, 



Picea alba, Torreya Californica, 



Picea Engelmanni, Torreya nucifera. 



bb. Foliage broad. 

 c. Deciduous; hardy. 



Betula alba. Ginkgo biloba, 



Betula lenta, Quereus Cerris 



Betula lutea, Quereus nigra, 



Betula papyrifera, Sorbus Aucuparia. 

 Betula populifolia, 



