Bui. 223, U. S. Dept. of Agriculture. 



Plate V. 



Four Sections of a Menakher Date Leaf. (Nearly Natural Size.) 



Fig. 1.— A leaf section near the base, showing a paired group, a, r, of very acute spines. 

 Fig. 2. — A section at 8 feet, showing a quadruple group., a, i, i, r, below and 'a triple group, 

 a, i, r. above. Figs. 3 and 4. — Sections at 10 and 12 feeL showing some well-defined retrorse 

 pinnse, r, r. The others will class as introrse, and no regular groups can be determined. 



