266 BULBS AND TUBEROUS-ROOTED PLANTS. 
the flower is, it is not well suited to our climate, and 
can only be grown under artificial conditions that render 
its cultivation here more difficult. The Ranunculus is 
one of the many plants of remarkable beauty in their 
own homes, but not adapted to other climates. Drouth, 
poverty of soil, rare atmosphere and fierce sunshine, are 
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CALLA FLOWERS AND FOLIAGE. 
fatal to its development. It is, moreover, easily injured 
by frost. Very satisfactory results, however, can be 
obtained by planting the bulbs in a cold frame, protected 
by a liberal mulching of leaves to exclude the frost. In 
early spring remove the mulch, but keep the sash on, as 
