4W) GLOSSARY OF BOTANICAL TERMS, 



T\m iraUd. Coated with concentric layers, as the Onion. 

 Turbinate. Shaped like a top or pear. 



Umbel. A kind of inflorescence in which the flower stalks diverge from 



one centre, like rays ; as in Conium macidatum. 

 Umbeliferous. Bearing umbels. 

 Umbilicate. Marked with a central depression. 

 Unarmed. Without prickles or thorns. 

 Uncinate. Hooked, hook-shaped. 



Undulated. Wavy, serpentine, gently rising and lalling. 

 Unguicidate. Inserted by a claw. 

 Unilateral. Growing all'on one side, or with the flowers leaning to one 



Urceolate. Pitcher-shaped. Swelling in the middle, and slightly con- 

 tracted at top. 



Valves. The segments or parts of a seed vessel, into which it finally 

 separates. Also the leaves which make up the glume or spathe. 



Vasculares. Plants with spiral vessels, woody stems, and reticulated 

 leaves, one of the divisions of Lindley's system. 



Variety. A subdivision of a species, distinguished only by characters 

 which are not permanent ; and which does not, with certainty, repro- 

 duce its kind ; as the varieties of /ti/tjw, peaches, &c. 



Vaulted. Arched over, whh a concave covering. 



Veined. Having the divisions of the petiole irregularly branched on the 

 under side of the leaf. 



Ventricose. SweUing. Inflated. 



Verrucose. Warty. Covered with little protuberances. 



Vertical. Perpendicular. 



VerticWaU. Whorled. Having leaves given off in a circle round the 

 stem. 



Vesicular. Made of vesicles or little bladders. 



ViUous. Hairy, the hair long and soft. 



Virgate. Long and slender. Wand-like. 



Virose. Poisonous, nauseous and strong to the smell. 



Viscid. Thick, glutinous, covered witlTadhesive juice. 



Vitellus. A part of certain seeds distinct from the albumen, but not ri- 

 sing out of the ground at germination. 



Viviparous. Producing a collateral offspring by means of bulbs. 



Wedge-shaped. Formed fike a wedge, and commonly rounded at the 



largest end. 



Wheel-shaped. See Rotate. 



Wingt. The two lateral petals of a papilionaceous flower. 

 Winged. Having the sides extended into a leafy expansion. 



