18(1 MASS. EXPERIMENT STATION BULLETIN 267 



Taxus haccttta, English Ykw. Tliis species is not hiirdy liere, and the 

 golden-foliaged variety is only ))artly so. 



Taxus canadensis, Canada Ykw. A hardy, dwarf, ahnost })rostrate, native 

 evergreen suitable for underplanting in cold situations. 



Taxus ruspuhifd ninin. Dwarf Jai'axkse '\'f.w. A sji.ill e\ergrpen satis- 

 factory for foundation planting and general ornamental work. This seenis 

 to be entirely hardy here. 



Thuja Occident alis, Aimerican Arkohvitai:. This hardy native species has 

 been frequently used on the college campus for single trees, for windbreaks, 

 for screen plantings, and for hedges. It is very adaptable for all such pur- 

 poses, and can be highly recommended. Its chief weakness seems to be that 

 it suffers from severe drought, especially when a dry autumn is followed by 

 cold windy weather in ^\•inter. 



TUhi (uiiericaua. Ajieuicax Linden. The common American linden or bass- 

 wood can be grown here, but does not do particularly well. It is worth 

 keeping in a collection, but as an ornamental tree is far inferior to the 

 Euroj)ean species. 



Tilia phtt jiphiillos, Bigleaf Euuoi'ean Linden. As grown on the campus 

 this is the best of all lindens, a shapely, fine tree with good foliage and gen- 

 erally bearing a fine crop of honey-producing flowers. 



Tilia vuUjaris, Common Linden. Not quite so good a tree as the preced- 

 ing and more inclined to an early fall of foliage tiirough insect injury. 



TsiKja canadensis, Canada Hemlock. The native American hemlock is one 

 of the best of all evergreen trees for general ornamental i)lantin2:, for use as 

 windbreaks, for shearing into hedges, and "even for specimen trees on the 

 law"n. It should, however, be given a cool soil and situation, preferably a 

 northern slope. There is a weeping \ariety (var. pendula) interesting as 

 such novelties go. 



Tsuga caroliniana, Carolina Hejilock. This species has been rather fully 

 tested on the campus in general plantings, as specimens, and in hedge rows. 

 It shears well and makes a good hedge, and is a first-class addition to the 

 list of hemlocks, though in general it would not be i)referred to the more 

 coMuiion Canada hemlock. 



rimus americana, Ajierican El:m. The most popular street tree and one 

 of the best for general park and lawn i)lanting. Quite variable. According 

 to observations here, the nursery-grown trees are mucii to l)e jireferred to 

 those collected from the wilds. 



Uhnus c(()iip<sfris aure((. Golden English Elm. One fine s])ecimen of this 

 tree, now nearly fifty years old, is a feature of the college campus. It needs 

 a little attention in the way of pruning to cut out reverting branches with 

 o-reen foliage. For a novelty of this sort the golden elm is unusually satis- 

 factory. 



Uhnus (flabra, Scotch Elji. Le.ss symmetrical than the American elm, to]) 

 rounder and more spreading. Interesting by way of variety but far less 

 valuable than the American species. 



Ulmus glabra camperdowni, Ca:mi'erdo\vn Elm. Several .specimens of this 

 monstrosity have been ]>lanted on the college campus; two or three of these 

 have done as well as could be exjtected. 



