utrigenw 



Variation 



utricular ; utrig'erus (gero, I bear), 

 bearing utricles. 



uva'rius (uva, a bunch of grapes) ; 

 u'veous, composed of rounded 

 parts connected by a support, like 

 a bunch of grapes ; uvif erus, 

 (fero, I bear), grape-bearing ; uvi- 

 form'is (forma, shape), grape-like. 



vacci'nus (Lat., relating to cows), 

 the colour of a dun cow, bay. 



vacil'lans (Lat., swaying), swinging 

 freely, as the anthers of grasses. 



vac'uolar, vac'uolate (dim. of vacuus, 

 empty), possessing vacuoles ; ~ 

 -wall, the condensed plasmatic 

 boundary of a vacuole (De Vries) ; 

 Vac'uole, a cavity in the proto- 

 plasm of cells which contains a 

 watery liquid, the cell-sap ; Vacuo- 

 liza'tion, the formation of vacuoles ; 

 vac'uus (Lat.), empty or void of 

 the proper contents. 



vagi form' is (vagus, inconstant, 

 Jorma, shape), having no certain 

 figure. 



Vagi'na (Lat., a sheath), (1) a 

 sheath, as of a leaf; (2) a part 

 which invests another ; vag'inant, 

 vagi'nans, sheathing or wrapping 

 round ; vag'inate, vagina'tus, 

 sheathed; Vaginel'la, (1) a small 

 vagina ; (2) in the plural = RA- 

 MENTA (Lindley). 



vaginer'vis, vaginer'vius, vaginer 7 - 

 vose (vagus, inconstant, nervus, 

 a nerve), when the veins are 

 arranged without apparent order. 



vaginif erus (vagina, a sheath, fero, 

 I bear), furnished with a sheath ; 

 Vag'inule, Vagi'nula (Lat., a little 

 sheath), (1) a sheath surrounding 

 the base of the seta in Bryo- 

 phytes ; (2) J a tubular floret in 

 Compositae ; vaginulif'eri Flor'ea, 

 the tubular florets of an anthodium 

 (Lindley). 



vague, va'gus (Lat., unsettled), hav- 

 ing no particular direction. 



Vail = VEIL. 



Vallec'ula or Vallic'ula (dim. of 

 vallis, a valley), applied to the 

 grooves in the intervals between 



the ridges in the fruit of Umbelli- 

 ferae ; vaUec'ular, pertaining to 

 such grooves ; ~ Canal', in Equise- 

 tum, an intercellular canal in the 

 cortical parenchyma, opposite a 

 groove on the surface (Goebel). 

 valva'ceus, J (valva, the leaf of 

 a door, + aceus), furnished with 

 visible valves ; valva' ris (Lat.) 

 = val'vate, valva'tus (Lat.), (1) 

 opening by doors or valves, as 

 in most dehiscent fruits and 

 some anthers ; (2) when parts of 

 a flower-bud meet exactly with- 

 out overlapping ; Valve, Val'va 

 (Lat., the leaf of a door), (1) 

 a piece into which a capsule 

 naturally separates at maturity ; 



(2) the segment of a calyx meeting 

 in vernation without overlapping ; 



(3) in Diatoms, each half of the 

 silicified membrane in side view ; 



(4) the lid of an ascidium (Crozier) ; 



(5) the flowering glume of grasses 

 (Stapf); (6) a partially detached 

 flap of an anther ; Val'vae Se'minum 

 COTYLEDONS; valved, = valvate, 

 hence three-valved, five-valved, 

 etc. ; val'var Plane, that plane 

 which passes through the apical 

 and transapical axes of a Diatom 

 (0. Mueller) ; valvea'nus, when a 

 partition arises from the expansion 

 of the inner substance of a valve ; 

 Val'velet, Val'vule = Val'vula, (1) 

 a diminutive valve ; (2) a flower- 

 ing glume of grasses ; (3) a bract 

 in Cyperaceae ; val'vular = val- 

 vate ; valvula'tus (Mod. Lat.) = 

 articulate, jointed. 



Vanil'lin (Vanilla, an orchid genus) 

 is deposited in the cell-wall on 

 lignification ; with coniferin it 

 gives wood-reactions. 



Vapora'rium (Lat., a steam -pipe), in 

 botanic gardens, a stove or ' ' Bark- 

 stove." 



variable, varia'bilis (Lat., change- 

 able), not constant in appearance ; 

 var'ians (Lat.), varying ; Varia'tion 

 (variatio, a difference), (1) a slight 

 variety ; (2) a tendency to vary or 

 depart from the type. 



284 



