1902] Macoun Notes on the Arboretum. 127 



hundred hardy ornamental trees and shrubs and the best one 

 hundred herbaceous perennials, whirh has proven very useful to 

 those who desire to improve their grounds. In the writer's 

 report for 1898 a short additional list of herbaceous perennials is 

 given. In the report for 1899 are another short descriptive list of 

 perennials and a des riptive list of twenty-five of the best low- 

 growing- flowering shrubs. The report for 1900 contains descrip- 

 tive lists of the best woody and annual climbers, and that for 1901, 

 a descriptive list of the different species and best varieties of lilacs. 



Some further notes regarding the trees and shrubs may be of 

 interest. 



As examples of how largely some genera are represented, I 

 may state that there were growing in the autumn of 1901 in the 

 Arboretum : 



200 species and varieties of Pyrus, 



134 of Prunus, 93 Lonicera, 89 Ulmus, 



no Acer, 155 Syringa, 121 Salix, 



75 Berberis, 100 Quercus, 66 Picea, 



80 Cratcegus, 92 Fraxinus, 64 Thuya. 



Canadian trees and shrubs have been thoroughly tested, and 

 are well represented. All of the trees mentioned in Prof. John 

 Macoun's paper on "The Forests of Canada and their Distribu- 

 tion " having been tried, with the exceptions of a few western 

 species which have not been given a thorough trial as yet. 

 Among these are Salix scouleriana , Baratt ; Pinus fiexUis, James ; 

 Pinus albtcaulis, Eng. ; Pinus yyionticola, Dougl ; Tsiiga pattoniaiia, 

 Eng. ; Tsuga niertensiana, Carr. ; Abies grandis, Lindl. ; Abies 

 amabilis, Forbes . 



Of Canadian trees which have been thoroughly tested, the 

 following have not proven hardy : 



Asiniina triloba, Duval (Papaw). This has killed out root and 

 branch. 



Liriodendton tiilipijera, Linn. (Tulip-tree). The tulip-tree 

 kills to near the ground every winter. A variety of this species, 

 however, integrijolia, imported from Berlin, Germany, in 1897 has 

 proven hardy for the past three years. 



Cercis canadensis, Linn. (Judas-tree or American Red-bud). 

 The tree now living in the Arboretum was planted in the autumn 



