C/? OSS 



S £'C T/OA/ 



feundium 



u/ccd 



LONGtTUDtNAL 



bast 



seer/ ON 



183. stem of Squash: (d) duct, (wp) wood parenchyma, {tr) tracheid, (s() sieve-tube, 

 {fip) sieve-plate, i^cc) companion cell, (&p) bast parenchyma. 



