

PLANTS FOR WINDOW GARDENING. 109 



rich man's choicest green-house and the poor man's garden 

 alike boast some of the varieties of this beautiful plant. In 

 the limits of a short article, like the present, it will be 

 impossible, of course, to give a detailed description, or even 

 to mention all the varieties ; many are only desirable in a 

 collection, being of inferior beauty ; while others are rare, 

 or of difficult culture, and therefore found only in the green- 

 houses of amateurs. 



The different varieties of tropaeolum divide themselves 

 into three distinct classes. First, those with bulbous, or 

 rather tuberous roots, such as Tropceolum azureum and 

 others. Second, those with large, round leaves, and large 

 showy, often coarse, flowers, as the various varieties of Tro- 

 pceolum majus. Third, those with small, delicate, regu- 

 larly-formed flowers, with smaller leaves, and more of climb- 

 ing rather than trailing habit, such as T. Lobbianum. 

 We are aware that this division is imperfect; that some 

 varieties partake of the characteristics of more than one 

 class, and that others are with difficulty included in any of 

 the three ; and to any one acquainted with all the different 

 varieties, the difficulty of classification will be at once 

 apparent. We shall, therefore, only attempt this general 

 division ; leaving a particular description to be given when 

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