884 



GLOSSARY 



Umbel. An inflorescence in which the peduncles 



or pedicels of a cluster spring from the same 



point. 

 Umbellate. In or like an umbel. 

 Umbellet. A secondarj' umbel. 

 Umbelliform. In the shape of an umbel. 

 Umbellule. An umbellet. 

 Umbonate. Bearing a stout projection in the 



center ; bossed. 

 Undulate. With a wavy surface ; repand. 

 Unguiculate. Contracted at base into a claw. 

 Uni-. In composition, one. 

 Uniseaual. Of one sex, either staminate or 



pistillate only. 

 Urceolate. Hollow and cylindrical or ovoid, and 



contracted at or below the mouth, like an 



urn. 

 Utricle. A small bladderj' 1-seeded fruit ; any 



small bladder-like body. 



Vallecular. Of or near a valley or groove. 

 Valtate. Opening by valves, as a capsule ; in 



aestivation, meeting by the edges without 



overlapping. 

 Valve. One of the pieces into which a capsule 



splits. 

 Vascular. Furnished with vessels or ducts. 

 Veins. Threads of fibro-vascular tissue in a leaf 



or other organ, especially those which branch 



(as distinguished from nerves). 

 Velum, The membranous ind.usium in Iso- 



etes. 

 Ventral. Belonging to the anterior or inner 



face of an organ ; tke opposit* of dorsal. 



Swelling unequally, or inflated on 



^orm-shaped. 

 The arrangement of leaves in the 



Ventricose. 

 one side. 



Vermifoi^m,. 



Vernation. 

 bud. 



Verrucoae. Covered with wart-like elevations. 



Versatile (anther). Attached near the middle 

 and turning freely on its support. 



Verticil. A whorl. 



Vertzcillaster. A cluster resembling a whorl 

 but composed of two opposite cymes. 



Tertieillastrate. Bearing or arranged in clus- 

 ters resembling whorls. 



Verticillate. Disposed in a whorl. 



Vesicle. A small bladder or air-cavity. 



Vesicular, Vesiculose. Composed of or cov- 

 ered with vesicles. 



Villous. Bearing long and soft hairs. 



Virgate. Wand -shaped ; slender, straight and 

 erect. 



Vixcid. Glutinous ; sticky. ^ 



Vitta. An oil-tube ; a structure commonly 

 present in the pericarp of the Urnbelliferae. 



Whorl. An arrangement of leaves, etc., in a 

 circle round the stem. 



Wing. Any membranous or thin expansion 

 bordering or surrounding an organ ; the lat- 

 eral petal of a papilionaceous corolla. 



Woolly. Clothed with long and tortuous or 

 matted hairs. 



Zygomorphic. Capable of division by only one 

 plane of symmetry. 



