358 GLOSSARY. 



Valve : a lid ; one of the pieces into which a pod, etc., splits. 

 Variety : a group of individuals having some character in which 



they differ from the typical form of the species. 

 VaseiUar : having or like vessels or ducts. 

 Vaseulum : the botanist's collecting-box. 



Vegetative cone : same as growing point. '' Pwnctum, vegetaiionis. 

 Vegetative point : same as growing point. 

 Vein : a branch of the skeleton or frame-work of a leaf. 

 Veinlet : a small vein. 



Venation : the veining or pattern of veining in a leaf. 

 Ventral : on the side next the axis or centre ; opposite of dorsal. 

 Vernation : the arrangement of leaves in the bud. 

 Versatile : attached at a point so as to allow swinging to and fro. 

 Verticillaie : whorled ; in whorls. 

 Vesicle : a little sac or bladder. 

 Vesicular: bladdery. 

 Vessel: duct. 



VexUlum: the upper petal or "banner" of a Papilionaceous corolla. 

 ViUose : having long soft hairs. 

 Viscid : sticky ; adhesive. 

 Vitreous: glassy. 



Vittce : oil-tubes in the fruit of the Umbelliferse. 

 Viviparovs : germinating or sprouting from seed or bud while yet on 



the parent plant.' 

 Volvble: twining. 

 Volva : an external covering or veil ; as in many Fungi. 



Waier-pore: an orifice similar to a stomate, but with immovable 



guard-cells, filled with water. 

 Whorled : verticillate ; in whorls. 

 Wing : a thin expansion. 

 Winged : with a wing or thin expansion. 

 Woolly : with long entangled hairs. 



Xanthos (in compounds) : yellow. 



Xylem : the woody portion in the fibro-vascnlar bundle. 



Zone of life : the cambium in exogenous stems. 

 Zoospore : naked motile cells (spores) in some Cryptogams. 

 Zygospore : sexual spores with thick walls ; as in the Conjugatae, etc. 

 Zygoapareoe : the division whose representatives produce "resting" 

 spores or zygospores. 



