156 



PLANT LIFE 



The flattened membranous tops of the hairs 

 often overlap, and when water is dashed on 



E 



Fig. 20. Tillandsia usneoides. I. A portion of the leafy 

 stem, showing the curved form of the stem and leaves. 

 II. One of the hairs on the leaf in section (highly magni- 

 fied). The water which is soaked up by the hair passes 

 by the darkly shaded cells into the interior of the leaf. 

 E, epidermis of the leaf. 



the plant it is held amongst them by capillary 

 attraction, the displacement of the air by 



