1844 



TREES 



TREES 



CC. Evergreen. 



D. Susceptible to severe frost (probably 20 Fahr. and 

 even less), 



Cinnamomum Camphora, Grevillea robusta. 



Corynocarpus Isevigatas, Sterculia diversifolia, 



Cryptocarya Miersii, Tristania conferta. 



DD. Hardy. 



Acacia melanoxylon, Lauriis nobilis, 



Cerasus Lusitanica, Pittosporum cra,ssifolium, 



Ilex Aquifolium, Quercus Suber, 



Laguiiaria Patersonii, Umbellularia Californica. 



AAA. Outline more or less rounded, but trees not as 

 wide-spreading nor as shade -git- in;/ as in class 4. 



B. Deciduous. 



C. Susceptible to frost (25 Fahr.). 

 Phytolacca dioica. 



CC. Hardy. 



.iEsculus glabra, 

 Fraxinus Americana, 

 Fraxinus excelsior, 

 J-'raxinus Ornus, 

 Gymnocladus Canadensis, 



Juglans Californica, 

 Jnglans nigra, 

 Koslreuteria paniculata, 

 Paulownia imperlalis, 

 Robinia Pseudacacia. 



BB. Evergreen. 



C. Probably susceptible to severe frost (20 Fahr. or 

 less). 



Acacia eyanophylla, 

 Alectryon excelsum, 

 Bursaria spinosa, 

 Eucalyptus calophylla. 

 Eucalyptus cornuta, 

 Eucalyptus corymbosa, 

 Eucalyptus corynocalyx, 



cc. Hardy. 



Acacia pycnantha, 

 Eucalyptus amygdalina. 

 Eucalyptus' Gunnii, 

 Eucalyptus leucoxylon, 

 Eucalyptus obliqua, 

 Eucalyptus rostrata, 

 Eucalyptus rudis, 

 Eucalyptus viminalis, 



Eucalyptus ftcifolia, 

 Eucalyptus Globulus, 

 Eucalyptus maculata, var. 



citriodora, 

 Eucalyptus robusta, 

 Hymenosporum fiavum, 

 Maytenus Boaria. 



Jubsea speetabilis, 

 Phoenix Canariensis, 

 Phoenix reclinata, 

 Phoenix sylvestris, 

 Pittosporum eugenioides, 

 Pittosporum tenuifolium, 

 Pittosporum undulatum. 



AAAA. Drooping trees. 



B. Deciduous. 



Acer saccharinum, var. Wieri Morus alba (Teas' Weeping), 



laciniatum, Populus grandidentata, var. 

 Betula alba, var. pendula ele- pendula, 



gans, Prunus fruticosa.var. pendula, 



Betula alba, var. pendula la- Quercus lobata, 



ciuiata, Salix Babylonica, 



Betula alba, var. pendula Salix Babylonica. var. Lickii, 



Youngi, Sophora Japonica pendula, 



Cratsegus monogyna, var. pen- Sorbus Aucuparia, var. pen- 

 dula, dula, 



Fagus sylvatica.var. pendula, Tilia Americana, var. pendula, 



Fraxinus excelsior, var. aurea Tilia Europ.-ea, var. pendula, 



pendula, TJlmus Americana, var. pen- 

 Fraxinus excelsior, var. pen- dula, 



dula. Ulmus catnpestris, var. pen- 

 Juglans regia, var. pendula, dula, 



Laburnum vulgare, var. pen- Ulmus glabra, var pendula, 



dulum, Ulmus montaua, var. pendula. 

 BB. Evergreen. 



Cupressus funebris. 



Schinus Molle. 



6. Trees for Streets , Avenues and Roadsides. The 

 number of tree species suitable for street planting is 

 limited by the necessarily heavy restrictions, as to 

 height, spread, sewer-penetration and sidewalk-raising, 

 imposed by municipal street departments. In European 



. 



4562. Weeping elm. type of a grotesque horticultural variety, 

 Ulmus scabra var. horizontalis. 



2563. Cordyline australis. 

 Often called Dracaena Palm. California. 



cities the first-named objections are overcome by means 

 of frequent and systematic pruning to a uniform stand- 

 ard ; where this necessity can be obviated by the selec- 

 tion of trees which naturally keep within the desired 

 bounds, the labor of maintaining them in a sightly con- 

 dition is minimized and the result much more pleasing. 



For town streets not more than GO feet in width, it is 

 important to have trees that will not give too much 

 shade and prevent the rapid drying of the roadway 

 after showers, nor be so tall nor wide-spreading as to 

 obstruct the view and shut out sunshine, rendering the 

 adjacent houses dark, cold and damp. On this account 

 trees with narrow or pyramidal outline are in many 

 cases preferable to those with wide -spreading habit, 

 and, generally speaking, deciduous trees are more suit- 

 able than evergreen, although at the time of losing 

 their leaves they make more litter. Exception may be 

 made in favor of such evergreen species as certain 

 palms and cordylines, some acacias and a few other 

 species mentioned below. 



It is not wise to use trees of very rapid growth on 

 town streets; they soon become too large and require 

 frequent trimming, which is usually equivalent to muti- 

 lation, and are likely to interfere with sewers. 



It cannot be said that street planting in California 

 towns has, in most cases, been satisfactory. In spite of 

 the much larger variety of suitable material than is 

 available in most of the states, there are few examples 

 of good street-planting to be met with. In most of our 

 towns the eye is greeted with a few straggling trees, of 

 which perhaps not more than two are of one kind, re- 

 calling Professor Waugh's apt simile of "nine mon- 

 strously different Jtmttons in a row down the front of a 

 Prince Albert coat." There are many pleasing exceptions, 

 however, although few are entirely satisfactory. Tlie re- 

 peated attempts to improve the appearance of a town by 

 planting trees along the streets should be encouraged on 

 every occasion, and the object of this article is to render 



