Fig. 1 - Transverse section of a small portion of the stem m1-5, successive meristele rings
x 14 ; slide n°11 ; pf = peripheral fibrous tissue ; sc = secretory canal ; lsc = a large secretory canal protruding into the outermost ring of meristeles ; is = inner sheath tissue ; os = outer sheath tissue ; cp = compressed ground parenchyma between the inner meristeles
