332 GLOSSARY. 



Tuber, a thickened and underground fleshy part of the stem. 



Tubercles, little round knobs. 



Tubercular, tubercled ; covered with little knobs. 



Tuberous, like a tuber, but not part of the stem. 



Tubular, hollow and nearly cylindrical. 



Turbinate, topshaped, conical and attached by its long point. 



Umbel, when many stalked flowers spring from one point and reach about the 



same level. Partial umbels are umbels seated upon the branches of an 



umbel, the whole forming a compound umbel. 

 Unilateral, turned to one side. 

 Urceolate, like a pitcher contracted at the mouth. 

 Veins, bundles of vessels in leaves and their modifications. 

 Ventricose, swelling unequally on one side. 

 Verticillate, arranged in whorls. 

 Villous, shaggy with loose long soft hair. 

 Viscous, clammy. 



Wedgeshaped, like a wedge, but attached by its point. 

 Whorl, similar organs arranged in a circle round an axis, as the leaves of Galium 



and of some Lilies. 

 Whorled, arranged in whorls. 



Winged, having leaf-like or membranous expansions. 

 Wings, the lateral petals of a Pea-flower ; the flat membranous appendages o? 



some seeds. 



When two terms are combined, as ovate-lanceolate, it means that the form or 

 structure is compounded of the two, or lies between them. 



