Contr. Nat. Herb , Vol. IX. 



Plate IX. 



'4: 



Fig. 1 .—Marginal Nectar Glands of Ricinus Leaf. Enlarged 43 Diameters. 



Fig. 2.— Cross Section Through Large Nectar Glands at Base of Ricinus Leaf- 

 blade. Enlarged 30 Diameters. 



