Bui. 1082, U. S. Dept. of Agriculture. 
Plate V. 
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The Sultan and Clara Butt Darwin Tulip Bulbs. 
Fig. 1. — Three bulbs of the Sultan in clumps as dug. These were planted as 7-eentimeter bulbs; 
all have flowered and reached mature size. Fig. 2.— The same as Figure 1, with the bulbs cleaned. 
Note the flower stems on each bulb planted; in each group are two bulbs which will flower next 
year. Fig. 3.— Five clumps of Clara Butt as dug, with some of the old hulls pulled off. The 
bulbs planted were 7 centimeters in size, set 21 to the row. Note the character and arrangement 
of the reproduction. Fig. 4. — Same as Figure 3, with clumps cleaned and separated. Note that 
although these have reached mature size, none of them flowered this year. Each 7-centimeter 
bulb planted has become 12 to 13 centimeters in circumference and produced another which 
will reach flowering size in another year, although all may not flower. This variety has an 
appealing flower and is a good reproducer, two characteristics'which make for commercial quality. 
