HYBRIDS OF JUG LANS. 



51 



Flu. 17. Short secreting trichomes of Jtiylatixrali/vrnica -; Jut/lanx rr.yin, F^, plant C : a to <, origin 

 and growth of trichome previous to separation from epidermis 840);; d and c, separation of 

 tricliome ruiliment from epidermis ( 1200); /, 1-celled stage (X 840);. </, first divison of triohorne 

 ( : 12*1); li, 2-celled trlcliome( X40); /.second division of trichome; .y, ;i-eelled tricbome (> 1200); 

 /., third cell-division ( 1200); I, transverse section of leaf, showing long and short secreting tri- 

 chomes in place. 



