17:2 
THE GENTIAN-BLUE PENTSTEMON. 
greatly iinpairofl by the numerous floral leaves among which they are mixed. Humboldt and 
Bonplaiid found it in Mexico^ in cold places, on the slope of the snow-capped mountain of Toluco^ 
at the heiglit of 10,500 feet above the sea, flowering in September. Hartweg sent it to the Horti- 
cultural Society from one of his stations named Anganguco, where it grew in pine-forests. 
We suspect that the beauty of the plant would be materially enhanced if it were grown in soil 
that would check its excessive vigour. If, instead of being four feet high, it could be dwarfed to 
eighteen inches, or two feet, it would be a lovely bedding-out species. 
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