Coniferous crees. 193 



with spreading branches and long two-ranked leaves of a 

 pale glaucous color. This is a perfectly hardy and very 



ornamental tree of a pyramidal habit, ami one of the besl 

 specimens for small lawns where there i< place for a few- 

 trees only. The great silver fir (A. grandis) i- hardly less 

 beautiful, but less glaucous. A. nobilis is another fine tree 

 of an almost columnar habit with stout spreading branches 

 and glaucous leaves Nordmann's silver fir (^1. Nord- 

 man a in mi) is however, the most common and popular of 

 all these trees. It is of a narrow pyramidal habit, with 

 short but ample branches ami long leaves, of a dark, shining- 

 green color on the upper side, and slightly silvery beneath. 

 This is an excellent lawn tree and comparatively easy to 

 obtain. 



False Hemlock, Pst udotmga Douglasii. — A tree almost 

 a- common and popular as the Xordmauu fir, of a less formal 

 habit, with slender elegant branches, and two-ranked, light 

 ereeii leaves. Not hardy in the extreme North. 



Hemlock, Tsuga. — These are well-known trees in rocky 

 woods on hillsides and ravines, often seen among deciduous 

 trees, forming little groups and scattered masses anion-- birch 

 and oak. They have slender, feathery branches and an ele- 

 gant habit, with dark green or silvery foliage. Many 

 varieties of the common hemlock (T. canadensis) are of a 

 broad and bushy habit in a young state, and almost rival 

 the Deodar cedar in beauty. T. Hookeriana is a species 

 with more glaucous leaves than the common hemlock, a very 

 graceful tree, but probably not hardy in the extreme North. 

 The hemlocks are useful for hedges, for -creen planting, and 

 a- an undergrowth in woods and copses. Small groups of 



