236 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



The most of the cotyledons are large and typical in form but 

 occasionally those which are small and scale-like are observed. 

 They may be inserted in a regular whorl or widely scattered along 

 the axis. Nevertheless the counting of the number of cotyledons 

 can, I think, be carried out with reasonable accuracy.^ 



Diagram i. F"requency distribution of luiinlier of cotyledons per plant. 



The tables and graphs show that in samples of the present size 

 the range is from twoj o seven cotyledon s. There is a distinct mode 

 in both samples upon four cotyledons. The distributions are de- 



' In a few cases we determined the number of cotyledons from the number of scars, 

 but in only a few. 



