THE GREEN-HOUSE. 



125 



of arranging the plants on a green-house stage would 

 be to follow the natural system of Jussieu : but as to 

 do that completely is impracticable, the next tiling is 

 to follow it as far as we can — and the third best thing, 

 to keep the genera together. Neglect of the last 

 principle as a general guide is quite inexcusable even 

 in the smallest green-house, — attention to it will be 

 amply repaid by the effect produced even on a cham- 

 ber flower- stage : as a proof of this, we have only to 

 refer to the green-houses of nurserymen who are ex- 

 tensive growers of green-house plants, and especially 

 to the well-arranged collections of IMessrs. Loddiges 

 in their garden at Hackney. 



Let it not be thought, however, because we recom- 

 mend every genus to be kept by itself, that we carry 

 this so far, or hold the principle in so arbitrary and 

 absolute a manner, as to exclude all or any good 

 effects that may result from a deviation from it. No 

 man of sound sense ever holds any principle in so ab- 

 solute a manner. That good effects may and do arise 

 from a deviation from general principles, we readily 

 allow, and on all fitting occasions would gladly avail 

 ourselves of them. For example, in the midst of a 

 broad group of heaths, it may produce a striking 

 effect to place a tall handsome camellia, or to distri- 

 bute two or three hyacinths and polyanthuses in 

 flower : a tall plant of tree mignionette may have a 

 fine effect among the succulents, and so on. The 

 effect produced always carries its own argument, and 

 justifies the deviation from the general principle ; for 



