256 STRAWBERRY. 



is an exception for the buds to be perfectly developed. The 

 deformed plant greatly resembles Cauliflower or Brocoli, 

 according as the different parts are more or less enlarged and 

 attacked, and according as the buds are not at all or only 

 partially developed, or have produced malformed flowers. 

 Some very broad and stunted stalks have buds on the top, 

 pressed together like a cock's comb ; and some have them at 

 the sides, spread very irregularly, in consequence of the 

 irregular growth, but growing thickly squeezed together over 



a large surface The branches are generally all more 



or less enlarged (fig. 1, ^), though a few of them may develop 

 normally ; some of the leaves may be normal, but many 

 remain very small, and the leaf smaller in proportion than 

 the stem ; sometimes instead of being trifid it is entire, and 

 some are much twisted. 



" The sheathing leaves are mostly small, or thick and 

 irregularly twisted. The flower buds are sometimes very 

 thick, while the leafy parts remain thin and scaly ; sometimes 

 the leafy parts become much thicker, but remain short, and 

 continue to produce little scales. Often the outer calyx, and 

 calyx, are more developed than the other leafy parts. Some- 

 times the bud remains entirely or in part closed (c), while the 

 outer calyx, and calyx, go on developing normally ; but often 

 the flower bud opens. 



" The leaves of calyx and outer calyx are frequently ab- 

 normal, those of the outer calyx being very thin and narrow, 

 almost needle-shaped ; while the calyx leaves, on the contrary, 

 develop more strongly ; occasionally they are twisted, and 

 have bubble-like swellings on the under side. Some are more 

 or less cut into ; others are trifid, imitating the normal leaf. 



" The corona petals sometimes do not develop at all ; often 

 they remain rudimentary. Sometimes they are much smaller 

 than the divisions of the calyx, and twist to and fro, generally 

 towards the inside ; then they are not white, but greenish 

 white or very light green, though thin and delicate in texture 

 as usual. 



" The stamens are wanting in many of the flowers, or are 

 represented by such rudimentary growths that their real 

 nature cannot be recognized ; in others, which have a normal 

 anther, the filament is much thicker and shorter than in the 

 case of normal stamens. The receptacle and pistil are often 



very small, sometimes the latter is altogether absent 



It is hardly necessary to add that stems, leaves, and blossoms 

 of fairly normal development may be found on plants that 

 are only slightly attacked by the disease." — (J. E. B.) 



(For figure of diseased plant and table of description of 

 details, see pp. 252, 253.) 



