DESCRIPTIVE LIST OF FLOWERS. 331 
grow freely till the ground is warm. About the middle 
of June the plants begin to appear in the open ground, 
and grow with great rapidity, soon covering a large bed, 
and making a dazzling display with their many-hued flow- 
ers, from July to frost. 
“The double varieties, like all other double flowers, can- 
not be relied upon with certainty to produce all double 
flowers, but the largest part of them will be double, and 
the single sorts may be pulled up and thrown away or 
transplanted, unless it is desired to retain them in the same 
bed with the double kinds. These and the Double Zin- 
nias are grand acquisitions of the German cultivators.”— 
Hovey’s Magazine. 
I was very successful in the cultivation of these double 
varieties, with seed from Germany, the last season. I had 
double snow-white, orange, scarlet, and purplish-crimson. 
The flowers so much resembled little roses, that when 
gathered, persons who were strangers to this beautiful 
flower thought they were roses, and were surprised to see, 
as they thought, scarlet and dark-orange roses. 
The single varieties produce an abundance of seed, so 
much, that the ground where the plants are grown is filled 
with young plants the following spring, and frequently it 
becomes a troublesome weed; but the double varieties 
produce seed so sparingly, that it is with the greatest dif 
ficulty that enough can be gathered for the next year’s 
sowing; on some plants not more than one or two cap- 
sules of seed could be found. 
POTENTILLA.—Crnquzror. 
{Named from potens, powerful, in allusion to the supposed virtue of some 
species in medicine.] 
A large genus, some of the species being weedy, and oth- 
ers are worthy of cultivation. Some of these appear 
