TSUQA 



605 



bushy tree about 35 ft. high and through, feathered to the ground with its 

 graceful branches. At Dropmore there is also a good example. But the 

 species is only adapted for the milder parts of the British Isles. At Kew 

 it has time after time been destroyed by frost. Of all the hemlock firs 

 it is the one whitest beneath the leaf; this character, with its downy shoots 

 and toothed leaves, will enable it to be recognised. 



TSUOA BRUNONIANA. 



T. CANADENSIS, Carriere. CANADIAN HEMLOCK. 

 (Abies canadensis, Michaux.) 



A tree 70 to 100 ft. high, with a trunk 6 to 10 ft. in girth, and a head of 

 often rounded form; bark reddish brown; young shoots bright grey, 

 minutely hairy. Leaves very shortly stalked, j to f in. long, linear, but 

 often broadest (^ to ^V in.) near the rounded base, tapering thence to a 

 bluntish point ; margins toothed ; dark gree$ above, with a clear, well- 

 defined band of stomata each side the midrib beneath. The leaves are 

 mainly in two opposite, spreading ranks, but there are also smaller leaves 

 on the upper side of the branchlet pointing forward, flattened to the 

 branchlet, often inverted and showing the white-lined lower surface. Cones 

 ^ to ^ in. long, oval, borne on a short downy stalk; the scales broadly 

 obovate, about as wide as long, minutely downy except on the exposed part. 



Native of Eastern N. America; introduced early in the eighteenth 



