see en en ee ee eee erties 
1888. | BOTANICAL GAZETTE. 255 
were covered with a periderm of six or seven layers in thick- 
ness. Lenticels were very numerous over the -whole inter- 
node. The wings do not originate until the internodes have 
reached about their full length. Their manner of origin may 
be said to follow a fixed law, though very many irregulari- 
ties occur. 
expansion, and the young, fresh p t 
along these angles. "A cross section at this ; 
pay * ints a, a 
the five angles is represented as lying 7 epi angles 
The bands of tissue represented as es et of six or seven 
°. 0. are composed of the original periderm 
n the succeeding num 
the text i 
*The plates will be published with the remainder of 
bers.—Eps, 
