STELAR THEORY 



191 



Fiii. 96. 



A, transverse section of the stem of Equisctuiit falitstre (X26), and />', part of it 

 X 160. C, transverse section of the ihizome of Eyuis. syfc-ati\nnt (Xa6). and />, 

 part of it X 160. E, transverse section of the rhizome of Eqiiis. litorale ( X 26), and /', 

 part of it x 160. ft = central cavity. r' = valleculai canals, c = car inal canals. f = sheath 

 of separate strands. o.v = outer, /* = inner general endodcnni^ : in A, C, and K the endo- 

 dermis is indicated by a dotted line. (After Pfitzer.) From Rat: Krypt, Flora. 



