Contr. Nat Herb., Vol. IX. 



Plate X. 



Fig. 1.— Nectar Gland in Lower Surface of Midrib of 

 Cotton Leaf. Enlarged 50 Diameters. 



Fig. 2.— Vaginate Nectar Gland in Midrib of Pariti 

 TiLiACEUM. Natural Size. 



