PLATE LXXVI. 



Fig. 56. Cross section of stem below terminal bud: q, wedges of 

 xylem of the vascular bundle system; r, leaf trace; h, bundles of bast 

 fibers; /, medullary rays, x 18. 



Fig. 57. Longitudinal section of the stem below the terminal bud, 

 showing the anastomosing of the vascular bundles: I, medullary ray; 

 q, vascular bundle: h, bundle of bast fibers. X 18. 



Fig. 58. Longitudinal section through old and new growth of stem: 

 ;', xylem of new growth; /, xylem of the last year's growth; h, bundle 

 of bast. X 18. 



Fig. 59. Longitudinal section of pith: d, pith of the last year's 

 growth ; c, pith of current year. Stippling indicates cell contents. X 173. 



