MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



ing but the earlier reduced and primitive leaf forms, and about the 

 same number of internodes as the normal seedling. 



Normal seedlings comparable to the above were of a height of 

 about 25 cm. above the point of insertion of the cotyledons. The 

 basal portion of the stem had a thickness of 3 mm. and the shoot above 

 the cotyledons had a diameter of 2 mm. and tapered gradually toward 



Fig. 48. Casta 7iea deutaia. A, etiolated. B, normal plantlet. 



the apex by reason of the greater amount of secondary thickening in 

 the older regions. The formation of bark was well advanced and 

 numerous lenticels were present. The normal seedlings were fur- 

 nished with three leaves of approximate adult form and size on the 

 terminal portion of the stem, while on the internodes immediately 

 below were four leaves of a length not greater than one sixth of the 

 adult with the dentation indistinct or entirely lacking. 



