Plate II. 



Fig. 1. — Cross section of phloem and cambial zone of Enptehea poh/amlra . x'285. 



w. a zone of newly formed wood, where lignification is incomplete. 

 Fig. 2. — Longitudinal radial section of outer cortex of Kuptehea jxjli/andra, showing 



three crystal-containing sacs. x355. 

 Fig. 3. — Cross section of epidermis of midrib of leaf of Euptebea polijiuulnt, 



presenting cutieular ridges in cross section. X355. 

 Fig. 4. — Cross section of young root of Euptehea jxjli/andra : A, younger; B, a 



little older stage. x200. 

 Fig. o. — Longitudinal radial section of a portion of phloum of Cercidii>lti/Uti)ii 



Japoiiicum, showing crystal-containing sacs ; / indicates the side nearer to 



the centre of the stem ; /•, the side farther from the centre. X2ÜÜ. 

 Fig. 6. — Cross section of the middle portion of petiole of CercidiphijUum. japonicum ; 



a, (I, a, mark the zone where distorted cells are found. X45. 



