vittae
[ˈvɪteɪ] (VEE-tee)
Definitions
1. noun
A rib or rib-like structure, especially in a fossilized leaf.
“The fossil contained vittae that were used to identify its botanical origin.”
2. noun
In botany, a rib or a midrib of a leaf.
“The vittae of the fern leaf were quite prominent, giving it a distinctive appearance.”