Laminiform: layer-like: having the appearance or made up of lamina.
The corolla (if it may be so called) a fleshy, 3-lobed lamina.
They may be called (in a generalized sense) the co-ordinates of the lamina.
Moreover the sections should be cut from the basal third of the lamina, and not from the tip of the leaf.
It split easily into lamina as fine as paper; was peculiarly ...