THE CALLA. 37 



ground until November ; probably two months too long, 

 if the sets were large, and in consequence all had started 

 an embryo flower bud in the dry bulb. It seems to me 

 that the only safe way to grow good Tuberose bulbs in 

 extreme Southern States is to use sets no larger than 

 peas, if they are to be left in the ground till November. 

 From such small sets there would be no danger of the 

 flower bud forming prematurely. If larger sets are used, 

 they should be lifted in September. When Tuberose 

 bulbs are raised in Pennsylvania, New Jersey, New York, 

 or other Northern States, the largest sets that can be 

 obtained (provided they are not large enough to go to 

 flower) we find make the best bulbs. Such sets are 

 usually an inch long, and about half an inch in diameter 

 at the thickest part. 



Great care is necessary in harvesting Tuberose bulbs. 

 They should never be placed in heaps large enough to 

 generate heat. In Southern latitudes they can be dried 

 in the open air ; but North, the green-house benches or 

 dry air sheds are a necessity. We find the safest way 

 to keep them, after being dried, is to place them closely 

 together, tops up, in single layers, in a dry, warm shed, 

 or in some place under the benches in a green-house, 

 where they will be safe from water. 



CALLA, EGYPTIAN LILY, LILY OF 

 THE NILE, (Richardia.) 



Calla, the now popular name of this genus, was given 

 to it by Pliny, and by this name it is still known, though 

 the white species, universally cultivated, is now known 

 to botanists as Richardia ALthiopica. It is a native of the 

 Cape of Good Hope, and was introduced into England 



