Orchid
Glossary (continued)
spike
An unbranched inflorescence of unstalked flowers.
stolon
A branch that grows horizontally above the medium and produces roots
and shoots at the nodes.
sympodial
Orchids which grow laterally and produce leafy growths along a rhizome.
terrestrial
Growing on the ground and supported by soil.
unifoliate
Having one leaf.
velamen
The thick sponge-like covering of the roots of epiphytic orchids
that helps prevent water loss and aids in absorption.
virus
A type of infectious agent, much smaller than common microorganisms,
several forms of which affect certain kinds of orchids.
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