306 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Verrucose. Covered with wartlike prominences. 



Versatile. Fixed at a point near the middle and thus swinging freely (referring to an 



anther). 

 Vertidllate. Arranged in a whorl. 

 Vesicle. A small bladder-like air cavity. 

 Vestigial. Referring to structures or organs which function incompletely if at all, 



being in the nature of vestiges or remnants of their former condition. 

 Villous. Beset with long soft weak hairs. 

 Virgate. Wandlike; slender, straight, and erect. 

 Viscid. Sticky to the touch; glutinous. 

 Whorl. An arrangement of three or more leaves or other organs in a circle about a 



common axis. 

 Whorled. See.verticillate. 

 Wing. Each of the two lateral petals of a papilionaceous corolla; any thin expansion 



bordering an organ or part. 

 Winged. Provided with a thin expanded border. 

 Woolly. Clothed with long, tortuous or branched, usually entangled hairs. 



