173 
a. . the Duplex class, we find semi-double flowers, with more 
than 12 rays in more than one circle, the rays long and flat or 
broad ee eae ae noticeably curled. Examples, Weber 
ae adame J. C 
. In the Pia. eae class, we have semi-double flowers, 
aa open centers, the inner floral rays being usually curled or 
twisted. Examples, Geisha, Laura Barnes, and Caecilia. 
5. In the Cactus class, we find flowers that are fully double, 
at least in the early part of the season or in all except the latest 
Cactus DaHLiA, Countess oF LONSDALE 
(Photographed at Pleasantville, New York. Cut used by courtesy of the 
New Jersey Agricultural Experiment Stations.) 
stages of ania of the individual flower. In the true or 
dt : 
the Hybrid Cactus group, we find rays thar are short and 
ey as compared with those of the true cactus, the margins of 
the rays are only slightly rolled backward, and the tubes of the 
