722 



ERECT FOLIAGE STEMS. 



Cedar of Lebanon (Cedrus Libani), 2000 ; the Spruce Fir (Abies excelsa), 1200 ; 

 the Broad-leaved Lime (Tilia grandifolia), 1000; the Arolla Pine (Pinus Cembra), 

 500-700; the Larch (Larix Europcea), 600; the Scotch Pine (Pinus sylvestris), 

 570; the Abele (Populus alba), 500; the Beech (Fagus sylvatica), 300; the Ash 

 (Fraxinus excelsior), 200-300; the Hornbeam (Carpinus Betulus), 150 years. 



The certified estimates of the heights of trees are of such general interest 

 that they are included below in the following table: 



Eucalyptus amygdalina (represented in fig. 176, after a drawing by Selleny), 

 is amongst the giants of the vegetable kingdom. The highest of these stems 

 placed beside St. Paul's Cathedral would tower about 20 metres above the cross, 

 and would be only a little lower than Cologne Cathedral. 



That the height and girth of trees do not increase proportionately will be 

 seen by comparing the following table with the previous one: 



According to these certified estimates there actually exist plants whose stems 

 attain a diameter of 20 metres, and others whose stems rise to a height of 

 142 metres above the ground. 



