MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



39 



than the normal and were lacking the central lysigenous cavity, as 

 were also those of A. Neafolitanuni. 



The inflorescence axis showed no sign of activity and was wholly 

 undeveloped in all examples dissected. After a growth of the leaves 

 had been made in darkness, the outer scales from which they have 

 been nourished were spent and empty. The scales composing the 

 central core were solid and turgid forming an ovoid mass about 

 12 mm. in cross section. It is probable that these scales would have 

 furnished material for the growth of the inflorescence in normal 

 growth. Sachs speaks of the formation of seeds by Alliwrn porrium, 

 which presumably had more or less nearly reached maturity before 

 confinement in the dark chamber. 



Allium vineale L. 



Bulbs of A. vineale were brought into the dark chamber from the 

 open air in April, 1900, and the leaves showed a rapid growth, soon 

 reaching an ultimate size which was slightly less in length than in 



Fig. 2. Allium vineale. A, etiolated epidermal cells of leaf. B, normal epider- 

 mal cells of leaf. X 100. 



the normal. In a few instances the average measurement was 

 reached, however. The width was less than in the normal. In con- 

 trast to A. Cefa and A. Nea^olitanum the lysigenous splitting of the 

 internal parenchyma was observed to take place in the usual manner. 



