206 



PRINCIPLES OF PLANT-TERATOLOGY. 



both by Dr. Rendle and by Vice-Admiral Chase 

 Parr, in which the pistil had reverted to five carpels, 

 amongst other changes, the styles of the carpels of 

 some of the flowers bore imperfect anthers. 



A tulip-flower with a 9-merous pistil (G6 + 3) had 

 the ovary split open on one side, and two of the 

 carpels were transformed into stamens which diverged 

 at a wide angle from the pistil. In another flower, also 

 having the ovary slit open, the free margin of one of 



Fig. 136. — Tulipa Gesneriana (Garden Tulip). Pistil split open and 

 showing an anther (an) on one of the carpellary margins. 



the carpels was transformed into an elongated anther- 

 loculus (fig. 136), while farther to the inside were 

 two free-standing stamens, as if representing an inner 

 whorl of carpels. Both flowers were otherwise normal. 



In the fasciated flower of Scilla nutans, mentioned 

 in an earlier section, the carpels, which were mostly 

 separate, distinct organs, bore anthers and had no 

 trace of ovules. 



The above are cases of hermaphrodite flowers be- 

 coming affected ; in the tulip and Scilla the stamens 



