NO. I. — GLOSSARY. 469 



Umbilicus, hilum ; the point by which the seed is attached to the pla- 

 centa. 



Umbonate, having a boss or projection in the centre, like the umbo of an 

 ancient shield. 



Unarmed, destitute of prickles, spines, or stings. 



Uncinate, hooked. 



Utidulated, wavy, having an uneven, alternately concave and convex mar- 

 gin ; as the leaves of Borage, Holly, &c. 



Unequal, applied to petals and sepals which are not of the same size or 

 shape ; also to the two sides of a leaf which are not symmetrical. 



Unguis, the claw or taper base of a petal, &c. 



Unguiculate, having an unguis or claw. 



Unifloral, bearing a single flower ; as the peduncles of Flax. 



Unilateral, one-sided, or turned to one side ; as the flowers of Bugloss, 

 &c. ; the partial involucre or involucel of Fool's Parsley. 



Unilocular, having one cell. 



Unisexual, of one sex. 



Urceolate, pitcher-shaped ; roundish, contracted at the neck ; as the corolla 

 of Dodder, the calyx of Cherry-laurel. 



Urceolus, a pitcher-shaped body. 



Utricle, a little bottle or bladder. 



Valvate, ) , . . , 



V 1 rt \ °P enin g D y or having valves. 



Valves, the divisions or parts of a seed-vessel that separate at maturity ; 



also applied to the glumes of Grasses, and the enlarged petals of the 



Dock genii s. 

 Vascular, composed of tubes or vessels. 

 Vaulted, arched. 

 Veinless, without veins. 



Velvety, covered with very dense, short, soft hairs. 



Ventricose, inflated, bellying ; as the lower part of the corolla of Foxglove. 

 Vermicular, having the appearance of a worm. 

 Vernal, belonging to the spring. 

 Versatile, swinging lightly on a stalk, so that the direction is changed by 



the slightest touch ; as the anthers of Darnel and other grasses, Col- 



chicum, Lily, &c. 

 Vertex, the extreme point. 

 Vertical, perpendicular- 

 Verticillate, disposed in a whorl. 



Verticillastri, spurious whorls or cymes ; as in Sage, &c, 

 Vesicles, hollow excrescences, resembling little bladders. 

 Vexillum, standard ; the upper large petal of a papilionaceous flower. 

 Villous, shaggy, covered with long, weak, soft, loose hairs. 

 Violaceous, of the colour of a Violet. 

 Virescent, greenish. 



