GLOSSARY. 



409 



Urceolate, shaped like a pitcher with 

 a contracted mouth. 



Unsymmetrical, having the parts 

 neither equal nor proportional in 

 number. 



Utricle, a little bladder filled with air 

 attached to the stems of certain 

 aquatic plants. 



Valve, distinct portions of certain 

 organs which become detached by 

 regular dehiscence along definite 

 lines of suture, as the valves of 

 anthers and the valves of carpels. 



Valvate, united by the margins only, 

 not overlapping. 



VentHcose, beUied or swelling out 

 on one side. 



Vertical, having the axis perpendi- 

 cular to the part from which it 

 arises. 



Verticillasters, short cymes in the 

 axils of the leaves of labiate 



plants, giving the appearance of 

 whorled fiowers. 



Viscid, glutinous and clammy, 



Vitta, a narrow elongated receptacle 

 of aromatic oil occurring, variously 

 disposed, in the fruits of Umbelli- 

 fers. 



Waved, Wavy, having an alternate- 

 ly convex or concave surface or 

 margin. 



Waxy, resembling wax in texture. 



Whorl, an arrangement in which the 

 parts are set m a circle round an 

 axis all on the same plane. 



Whorled, disposed in whorls. 



Wing, a membranous expansion ; 

 also each of the two lateral petals 

 in a papilionaceous or other irre- 

 gular flower, when these differ 

 from the rest. 



Woolly, having long curled hairs, 

 matted together like wool. 



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