284 GLOSSARY 



Urceolate. Urn-shaped in the conventional sense, with the 



neck contracted. 



Valvate. Meeting by the edges but not overlapping. 

 Valves. The parts into which a capsule finally breaks. 

 Vascular bundles. The strands, chiefly woody, of root, stem 



or leaf. 



Veinlets. The finer or finest veins of a leaf. 

 Veins. The woody bundles of a leaf, often called nerves 



when they run rather distinctly from its base to tip. 

 Veiny. Usually meaning with conspicuous veins. 

 Velvety. Downy: pubescent with short spreading hairs. 

 Venulose. Finely veiny. 



Vernation. Arrangement of leaves in the bud. 

 Verticillate. Whorled. 

 Vessels. Ducts, or tracheae. 

 Vestiges. The remnants of disappearing parts. Contrasted 



with rudiments or unformed parts. 

 Villous. With long spreading hairs. 

 Vine. A- climbing or trailing plant, in popular usage. 

 Warty. With rounded warts or tubercles (twig of elder). 



Contrasted with granular, where the roughening is fine. 

 Weeping. With drooping branches, as used horticulturally. 

 Whorled. Three or more at a node, as applied to leaf-scars. 

 Winged. With thin border or appendage (leaf-scar of some 



maples, twig of some spindle-trees, petiole of orange). 

 Wood. Technically, the xylem or part of the fibro-vascular 



bundles of higher plants that contains ducts or trache- 



ides, in contrast with the bast or phloem which contains 



sieve-cells. 

 Wood-parenchyma. Tissue with ducts and tracheides, in 



wood. 



Woody fibers. As here used loosely, the vascular bundles. 

 Woolly. With long curved tangled hairs. 

 Zig-zag. Bent back and forth at the nodes. 



