Term:

Cotyledons plano-convex (= cotyledons fleshy, irregular)
Definition:

Same as cotyledons fleshy. We no longer use plano-convex because the cotyledons are very irregular and are not plano-convex as in, for example, the embryo of species of Gustavia.
Notes:

Cotyledons fleshy, irregular is preferred over plano-convex.