HARDY WOODY PLANTS 171 



Picea canaihiisi.'t, White Spruce. This native spruce is not entirely at home 

 on the campus, preferring higher altitudes and colder, moister land. The 

 same might be said of the Silver White Spruce (Picea canadensis caerulea), 



Picea encielmanni, Exglemaxn Spruce. In its native habitat this makes a 

 fine tree and in its juvenile condition is one of the most interesting ever- 

 greens even in our locality. However, it is not well adapted to this soil and 

 climate, and does not make a permanent tree of outstanding value. The same 

 could be said of the Blue Exglemank Spruce (var. glauca). 



Picea e.rcelsa, Norway Si'rttce. This has been extensively used on the col- 

 lege campus and makes a very good tree, shapely and attractive, reaching a 

 height of about forty feet. At the end of thirty or forty years, however, these 

 specimens begin to grow ragged, especially about the bottom, and from this 

 time on deteriorate steadily. They are also badly attacked by gall-aphid. 

 They nuike excellent hedges, also good Christmas trees, and are generally 

 very attractive during the juvenile stages. As they are hardy and easy to 

 grow they can be used in considerable (piantities, but it is good management 

 to weed out the older specimens. 



Picea excelsa compacta. Globe Norway Spruce. One very fine specimen 

 of this dwarf spruce is found on the college campus. It is one of the most 

 satisfactory curiosities in its class. 



Picea excelsa cupressina. Somewhat more columnar in form than the species 

 and closer branching so as to produce a very dense crown. 



P. excelsa pendula. Another odd form is represented by an old tree on the 

 campus. Interesting only as a curiosity. 



Picea puiKjens, Colorado Spruce. These spruces have been grown in consid- 

 erable numbers and variety on the college campus. They are thrifty and hardy 

 and fairly satisfactory during their early years. After reaching the age of 

 twenty or thirty years, however, they begin to deteriorate. 



Picea punijeiis c/lauca. Blue Colorado Spruce. This very popular curiosity 

 has been widely planted through the country and a number of good speci- 

 mens have been grown on the campus. At the age of twenty-five to thirty 

 years they begin to lose their lower branches and soon have to be removed. 

 This species has been greatly overvalued and overplanted throughout the 

 countrj' generally. 



Picea rubra. Red Spruce. This native species, like the white spruce, re- 

 quires colder, moister soil than is available on the college grounds. It makes 

 rather picturesque specimens but is not to be recommended for general plant- 

 ing. 



Pieris fforibtiuda. Mountain Andromeda. A delightful small evergreen 

 shrub with beautiful, white, waxy flowers in spring. Hardy and satisfactory 

 here, and to be generally recommended for planting on home grounds and in 

 the finer sections of parks. 



Pieris japonica, Japanese Androjieda. A fine, hardy evergreen shrub some- 

 thing like the American species and equalh' attractive as a garden plant. 



Pinus hanksiana, Jack Pine. As far as the college plantings are concerned 

 this is "just another pine." It has no outstanding characters to recommend it 

 for general planting. 



