IQI2] 



STARR— ANATOMY OF DUNE PLANTS 



279 



JUGLANS CINEREA 



Leaf 



12 =13 per cent 



M 



T 92 M (79-112) 



UE... 

 p 



Sp. . . . 

 LE... 

 OW. . . 



X 



148 M (i 19-166) 



21 



21 



44 =48 



14 = 



thin 



16 



13 



39 

 82 



14 



9 per cent 



26 



55 

 10 



3-7 



N. 

 D. 



W. 

 F.. 

 L.. 



R. 

 C. 



S.. 



• • 



-X".— More pubescent; upper epidermal 



Stem 



M 



X 



18 



25 



64 M (85) 55 M (79) 



7-3 

 4 



95 



1-6 (av. 3) 



3-8 

 3-2 



9 

 i-3 



60 



73 



57 

 77 



X. — Like the majority in the greater 



cells smaller in depth, same in surface number of vessels of smaller area (but the 



extent; first layer of palisade deeper and final product greater), the smaller lumen 



a second layer developed ; vessels in mid- of the fibers, and the heavier scle- 



nb of the same size but more numerous; renchyma; differing in thinner walls and 



more sclerenchyma and collenchym 

 crystals abundant.— Figs. 8 and 9. 



cork, and occasionally large number of 

 rings produced in M 



8 



9 



igs. 8, g.—Juglans cinerea: sections of leaves; fig. 8, mesophytic form; fig. 9, 



