Australian Biological Resources Study
Fern definitions mostly compiled by Mary D.Tindale
(definitions of conifer terms provided by K.D.Hill)
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vascular bundle: the primary fluid-conducting system of a plant.
vein: a strand of vascular tissue.
velum: a membranous flap-like envelope which partially or wholly covers the sporangium.
venation: the arrangement of the veins in a lamina.
vermiculate: with worm-like projections.
vernation: the arrangement of the unexpanded fronds in a bud.
verrucose: covered with wart-like outgrowths, warted.
villous: clothed with long weak hairs. cf. hirsute
.