Vagina 



varilfolius 



Vag^'na (Lat., a sheath), (1) a sheath, 

 as of a leaf ; (2) a part whicli in- 

 vests another ; vag'inant, vagi'nnns, 

 sheathing or wrapping round ; vag'i- 

 nate, vagina'tus, sheatlied ; Vagi- 

 nel'la, (1) a small vagina ; (2) in the 

 plural = Ramenta (Lindley). 



vaginer'vis, vaginer'vius, vaginer'vose 

 {vagus, inconstant ; nervus, a nerve), 

 when the veins are arranged with- 

 out apparent order. 



vaginif erus {vagina, a sheath ; fero, 

 I bear), furnished with a sheatli ; 

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

 sheath), (1) a sheath surrounding 

 the base of the seta in Bryophytes ; 

 (2) X a tubular iloret in Conipositae ; 

 raginuUf'eri Flor'es, the tubular 

 florets of an anthodiuni (Lindley). 



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

 ing no particular direction. 



Vail = Veil. 



Vallec'ula or Vallic'ula(dim. of vallis, 

 a valley), apfJied to tlie grooves in 

 the intervals between the ridges in 

 the fruit of Umbel li ferae ; vallec'u- 

 lar, pertaining to such grooves ; ~ 

 Canal', in Equisetum, an intercellu- 

 lar canal in the cortical jiarenchyma, 

 opposite a groove on the surl'ace 

 (Goebel). 



valva'ceus + {valva, the leaf of a 

 door, -{-accuH), furnished with visible 

 valves ; valvar'is (Lat. ) = val'vate, 

 caloa'tU3{l^?it.), (1) opening by doors 

 or valves, as inmost dehiscent fruits 

 and some anthers ; (2) when parts of 

 a flower bud meet exactly witliout 

 overlapping ; Valve, VaVva (Lat., 

 the leaf of a door), (1) a piece into 

 which a capsule naturally sejjarates 

 at maturity ; (2) the segment of a 

 calyx meeting in vernation without 

 overlapping; (3) in Diatoms, eacli 

 half uf the silicified membrane in 

 side view ; (4) the lid of an ascidium 

 (Cro/.ier); (5) the flowering glume 

 of grasses (Stapf) ; (»)) a partially 

 detached flap of anantlier; Val'vae 

 Se'minu)ii = Coj'ylei>i)N.s ; valve- 

 view, the Diatom frustule seen from 

 the side, the giidle being then 

 marginal ; 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 ; 

 valved = val'vate, hence three- 

 valved, tive-valved, etc. ; Val'velet, 

 Val'vula = Val'vule, (1) a diminu- 

 tive valve; (2) a flowering glume of 

 grasses ; (3) a bract in Cyperaceae ; 

 val'vular = valvate ; 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. 



Vappra'rium (Lat., a steara-))ipe), in 

 botanic gardens, a stove or formerly 

 a " Bark-stove." 



Variabil'ity, tendency to vary; var'i- 

 able, varia'bilis (Lat., changeable), 

 not constant in appearance ; var'ians 

 (Lat. ), varying ; Var'iant, a form 

 arising from a variation ; Var'iate, 

 one of the separate numerical values 

 from which a curve of variability 

 can be made; Varia'tion {variatio, 

 a difference), (1) a slight variety; 

 (2) a tendency to vary or depart 

 from the type; acqui'red ~, arising 

 during the development of an indi- 

 vidual: correla'ted '~, change in 

 one organ causing change in another, 

 though seemingly not connected ; 

 discontin'uous '^, arising by dis- 

 tinct steps; genet'ic --', having its 

 origin in the germ cells; merit'tic 

 ^ , cliange in symmetry and number 

 of part; sub'stantive '-, change in 

 tlie actual constitution or substance 

 of the parts themselves. 



var'icose {varico.ncs, full of dilated 

 veins), abnormally enlarged in 

 places, used of filamentous organs. 



var'iegated, variega'tus (Lat., party- 

 coloured), irregularly coloured in 

 patches, blotched. 



Vari'ety, Var'ietas (Lat., diff"erence), 

 a sort or modification subordinate to 

 species ; -' Hy'brid, so called, a cross 

 between varieties of the same species. 



varlifol'ius {varius, variegated), pos- 



sessing leaves of different forms 



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